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Posts Tagged ‘science education’

Nuremburg Chronicles Empedocles

Anaxagoras and Empedocles, from the Nuremburg Chronicles

In my last post, I showed the statistics of what this blog has accomplished so far. I feel very good about where we’ve been, but now it’s time to describe where I plan on going this coming year.

Given that I am not teaching chemistry this school year, my work on the Elements Unearthed project has slowed down a bit as my attention has been diverted elsewhere by the astrobiology projects (the podcasts and CLOE animations) and other projects that I’ll describe next week. I anticipate teaching chemistry again next year, and I am in the process of writing up a series of grant proposals (all of which have to be done by Feb. 1) that, if successful, will provide funds for purchasing some iPad tablets and probeware that will allow us to do some environmental field research.

fluorite and emerald

Fluorite and emerald crystals in the collection of Keith Proctor

In the meantime, I have a large backlog of videos that I have taped of various mine tours and interviews I’ve done across the country. I need to edit these into final videos and report on them in detail on this site. In order to keep myself on track, I’ve created a schedule for when I’d like to do each video and the topics I’ll cover here as I work on them.

This January, 2012, I am going to start at the beginning and look at ancient chemistry and our knowledge of the elements in prehistoric and early historic times. Then in February, I will start to work on my Greek Matter Theories videos. I have previously created all the script and narration and have even set up the video files and begun the graphics and animations. It’s high time I finished these. I’ll start with an overview of the Greek Ideal in philosophy and science, then talk about Thales and the Miletian School, then Parmenides and Zeno and the Eleatics. In March, I will talk about Heraclitus and Empedocles and the atomic theory and Plato. In April, I’ll move on to Aristotle, Epicurus, and the debate on elements versus atoms, ending in the theology of St. Thomas Aquinus and how atomic theory came down through the Middle Ages.

In May and June I’ll discuss the practical side of chemistry, with a look at ancient crafts, including metalworking, glass making, and other medieval technologies, including a detailed look at Agricola’s De Re Metallica (which I have many photos of).

Dalton molecules

Diagrams of molecules by John Dalton

By July I should have the funding I need in place to start the field research. My plan is to partner with another school, perhaps Tintic High School or Wendover High School, to travel out to nearby mining sites and use the probeware and iPads to collect and record data on soil and water environmental conditions, such as the pH of soil and runoff water near old mine dumps. I’m especially interested in seeing if the EPA efforts to mitigate contaminated soil in and around Eureka, Utah have been successful. I’ve talked about those efforts in previous posts (especially here: http://elementsunearthed.com/2010/06/09/the-legacy-of-the-tintic-mining-district/ ), so I won’t talk about them again now. We would use GPS coordinates and GoogleEarth to set up a grid of sample sites both in and out of the recovered area. We would sample the surface and two feet below ground. It would require several trips and coordination with local students to gather the data, but it is a project that would fit very nicely with the research I’ve already done. If I can get enough money together, I would like to rent a portable X-Ray Fluorescence Spectrometer which can read element abundances nondestructively on the site.

In preparation for all this, I need to make one more trip to the Tintic district in June to photograph and videotape the mines in the southwest area, which were the first mines discovered, including the Sunbeam and Diamond mines. One of my great grandfathers, Sidney Tanner Fullmer, died as a result of injuries suffered in an accident while working in the Diamond mine, leaving my grandmother an orphan to be raised by her aunt and uncle. So this history has a particular interest to me.

One thing I plan on doing, if we can work out a partnership, is to set up an evening in Eureka at Tintic High School where townspeople can come in with photographs and tell their stories of mining and life in Eureka before and after the EPA efforts. We’ll scan the photos and videotape the recollections, then combine all that with the video I’ve already done of the Tintic Mining Museum and local area. Ultimately, my students will help me script and edit a three-part video on the Tintic District, perhaps even done well enough that we could market it to KUED, the PBS station in Salt Lake City.

Tintic load site

Ore loading platform in the Tintic Mining District

The months July, August, and September will be dedicated to this effort and will result in the best documentation created so far on video of the history and present of the Tintic Mining District.

October will be dedicated to Zosimos of Panopolis and such Arabic alchemists as Jabir ibn Hayyan. November will begin a discussion of European alchemists, from Roger Bacon and Ramon Llull through the Middle Ages. I’ll draw on the many photos I’ve taken on alchemical texts at the Chemical Heritage Foundation. The history of alchemy will continue through December, 2012 and on into January, 2013. In February and March, 2013, we’ll discuss the emergence of modern chemistry through Boyle, Priestley, and Lavoisier through Dalton, Avogadro, Berzelius, and others.

In April through June of 2013 we will switch gears and talk about nucleogenesis and the origin of the elements, then the physicists and chemists that have helped us understand the structure of the atom and quantum mechanics. From there, I will probably begin to talk about individual elements and how they are mined and refined, with examples of the mining districts where they come from, such as the history of the Viburnum Trend in Missouri and the lead mines there, or the gold mines of Cripple Creek, Colorado. I really do have enough materials now to keep this blog going for at least two years. And I’ll be gathering more all the time. I will also dedicate occasional posts to my efforts as a chemistry teacher and to science education in general, including my experiences at conferences, etc.

Van Helmont

Portrait of Joannes Baptista van Helmont

Well, it is an ambitious schedule. I hope to do at least one post per week, probably on weekends. I hope to complete at least one video segment every two months or so. Next week, I’ll start us off with an overview of the history of chemistry.

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Once each year I like to go over the statistics for this blog in detail to see what posts have been the most popular, which search terms are finding this blog, which videos are most watched, etc. I’m not doing this just for an ego trip, but to be able to report the impact this site is having. I have had some very generous sponsors over the three years this blog has been running, especially the American Section of the Société de Chimie Industrielle (which paid for my fellowship in 2009) and the Chemical Heritage Foundation, which provided such a wealth of resources in its collections on the history of chemistry. It was during the time of my fellowship that this blog really began to find an audience, and it has been growing ever since.

Stats for the Elements Unearthed

Monthly Stats for the Elements Unearthed Blog

So here is where this blog stands: As of today, there have been a total of 67,620 visits to this site. As seen by the histogram, the number of visits has shown a definite annual pattern consistent with the school year – visits are lower in the summer when school is not in session, rise in August and September, stay high in October and November, dip a bit in December due to Winter Vacation, then rise again in January and February and peak in March, then gradually decrease as the school year winds down in April and May. This same pattern has repeated for the last three school years, but has grown each year. Last year, in the 2010-2011 school year, my best months were slightly above 3000 visits. Now they are topping out above 4000 and I hope they will hit 5000 by March.

Granted, compared to some popular blogs with thousands of hits per day, 5000 per month doesn’t sound like much. However, I am pleased – this is a rather esoteric blog dedicated to the history of chemistry and chemistry education. The yearly pattern shows that I am reaching my intended audience of high school students and teachers. This is also shown by the types of searches that reach my blog.

Although there are always some unrelated search terms that somehow reach my blog (the biggest ones are “Ocean City, New Jersey” and “Punxsatawney Phil” because I visited both places in 2009 and showed some pictures), by far the majority of search terms are related to chemistry and its history or to science education in general. I’ve gone through the search terms and compiled them into categories, mostly so that I can make plans for the future. Here are the top searches that reach this blog: (1) Greek Matter Theories (3473 searches) with Aristotle, Democritus, and Thales being the biggest ones; (2) the Periodic Table of elements (2288); (3) beryllium (1600); (4) Alexandre Beguyer de Chancourtois (1397) – this is a bit surprising, but apparently my animation of his telluric screw periodic system and description of his work is one of the few sites out there about him; (5) the Tintic Mining District (1041); (6) the history of the periodic table (868); (7) science education (862), especially using iPads in science classes; (8) early modern chemistry (822), including Lavoisier, Boyle, Priestley, Dalton, and Newton; (9) alchemy (732), with love potions, Khunrath, Basil Valentine, Zosimos, and Maier the highest; (10) water and wind turbines (618); (11) strange attractors (586) – this is another odd one, since I only mentioned it once, but it was in my most popular post; (12) mercury (554); (13) early technology (514), such as Roman glass, Pliny the Elder, Agricola, Neri, and others; (14) mining in general (455) – such terms as overburden, open pit mine, ball mill, and headframe; and (15) Cripple Creek, Colorado (315).

Top Posts for this blog

Top Posts for the Elements Unearthed Blog

The videos that I have created for this project are posted on this blog (under the video tab) and on YouTube. The History of the Periodic Table, featuring Dr. Eric Scerri of UCLA, is my biggest hit so far. All parts of this video have been watched a total of 11,474 times as of 1/7/2012. There are even a few derivative works on YouTube that take parts of my video – a section on Henry Moseley, for example – and combine it with parts of other videos with Bill Nye, etc. I’ve had quite a few comments on how useful this video has been for chemistry teachers out there, and I am very pleased with the results so far. There is also a version with Portuguese subtitles done by a professor in Brazil; I’m not sure how many times that has been seen. My separate video that showed only some animations of the periodic table has been watched 416 times.

The second most popular videos have been the two parts on beryllium – its properties and uses, and how it is mined and refined. It has been watched a total of 3219 times, with the separate video on the geology of beryllium watched itself an additional 153 times. The Discovery of Synthetic Diamonds has been watched 745 times and the demonstration of Glass Blowing 754 times. These have been the most popular videos related to this project.

In conclusion, the most important question is: Have I succeeded in my attempt to bring the history of chemistry and chemistry education to the general public, and specifically to teachers and students? All indications, based on these statistics, are that I am succeeding and that that success is continuing to grow.

The last several posts have been about astronomy and space science education, and although some search terms have reached these posts, not many have. For various reasons, not the least of which is that I want to keep this blog focused on my original intent, I am starting a new blog which should be up and running by Wednesday night on space science education and resources for teachers to use now that we are in the golden age of astronomy. I will be doing quite a bit of education outreach on these topics over the next few years, if all goes well, and they deserve to have their own blog. I will include links here once that is ready to visit. I will post to this new blog once per week on Wednesdays.

The statistics also point out which topics have been most popular, and give me direction on what to post about in the future. In my next post, I will give you a schedule of what I intend to discuss over the next year and a half and when I will have the related videos completed. I will try to post once per week, probably on weekends. I have much more material from my fellowship at the Chemical Heritage Foundation that I haven’t shown or discussed here yet, and I look forward to digging into it all. I have also visited many sites related to mining and refining of the elements which I have only mentioned in passing. It’s time to edit all that footage and photos into videos for this site and YouTube. I expect the next few years to be busy, productive, and rewarding and to reach even more people than I already have.

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Foam demonstration

David Black presenting foam demonstration

Yes, I know this is late. The new school year is about to start and I am only just finishing up the last school year. This post will describe the Grand Finale of the school year for my science classes, which was our First Annual Science Showcase at Walden School.

We had been working toward this all year, as you have seen from previous posts. Students in my astronomy and chemistry classes joined into small groups (2-3 students) and chose topics based on what interested them and what materials and equipment I had available. Then during first term, they conducted background research. My chemistry students created posters and several of them contributed posts to this blog. During second term, the teams condensed their research into a script for a presentation or mini-lesson on their topic which was to include explanation, background, and some type of demonstration or hands-on activity. The teams practiced and refined their scripts, then I divided the teams in half. Half of each class presented their demonstrations/lessons to their peers in class, and I had their fellow classmates fill out an evaluation form with Likert-style point scales and room for comments. The other half presented to our elementary classes and wrote evaluations on themselves. In astronomy, the students merely presented for the elementary classes once.

science night assignments

Assignments for Science Showcase

During third term in chemistry, the teams went over their evaluations and improved their scripts. I had them start to create Powerpoint slide shows or add YouTube videos to increase the depth of their presentations. Then the teams presented again – those that presented to their peers now presented to the elementary classes and vice versa. Evaluations were again filled out, with even more detail. I also wrote up my own detailed suggestions for each team.

copper group presenting

Copper group presenting at Science Showcase

Finally, fourth term, we made our final preparations and practiced and set up our Science Showcase on May 16. I also asked the astronomy students to return and reprise their presentations, and had my geology students help out. Since our school is small, many students presented twice (and got extra credit for it). We set up an invitation for the parents and had it e-mailed out to the whole school mailing list. It took a lot of preparation, and wouldn’t have been possible without the support of the Air Force Association Educator Grant, which helped to pay for materials and supplies that were used up each time we presented (like plastic cups, red cabbage, white glue, etc.).

Schedule for science night

Schedule for Science Showcase

We set up the evening to be in three classrooms and outside on the school’s back patio (for the dangerous or messy presentations). The teams were assigned carefully so that those who were doing more than one session could make it to each one. Some students also got credit for helping film the sessions, making sure the refreshments were done (homemade root beer and ice cream, which were actually presented at two sessions), acting as hosts for each room, etc. For four sessions we had four presentations going at the same time, or about 16 topics altogether.

Dry ice group

Dry ice group presenting at Science Showcase

It was a bit frustrating to get the students all there on time (an hour early) and a few things I wanted to do didn’t get done, but overall the night was a huge success. I had about 30 students involved, and there were about 40-50 other people who attended, some other students, some parents, some siblings. A few of the sessions were too short, and the student hosts in each room didn’t watch the clock well enough, so the schedule got a bit messed up by the end, and we had to take a break for refreshments. The homemade root beer (we already had dry ice) and ice cream (another presentation) went over well. Some of the sessions only had a few in the audience, others were packed.

Flame test abstract

The last session was done by Jerry and Karl on properties of the elements and how fireworks are made, and in addition to the methanol flame test, Karl had made his own sparklers. He’d looked up a recipe online, but I didn’t have all the exact ingredients, so we substituted and experimented for a few days and came up with a viable recipe, one that actually works better than commercial sparklers. It was nice to have a grand finale, so to speak.

Homemade sparkler

Homemade sparkler demonstrated at Science Showcase

We videotaped and photographed everything, and I am still trying to capture and compile the video. I have only two weeks left until school starts, and my goal is to put together a final 15 minute video of all our presentations for the year before school begins so that I can show it to my next classes and post it here.

Solid rocket booster

Toasting the Runt: A solid rocket booster

As an assessment of the evening, I didn’t have any kind of feedback forms, but based on overheard comments, feedback from parents and other teachers, and general excitement of my students, I’d say the evening was a great success. Everyone had fun, most of the presentations worked well, the students came through very well, and I saw some genuine learning and expertise displayed by my students. Certainly they have come to feel comfortable using lab equipment and presenting to their peers and others. What they presented they have now learned deeply and will never forget, long after stoichiometry and thermochemistry have faded away. For our first year doing this, we have set up a good foundation. There are things that can be improved, of course, and I hope to get the other science teachers involved this coming year. At least now my students know what to expect.

Homemade root beer

Homemade root beer

I hope to have several students display their science experiments, where they designed, observed, and analyzed their own data for science fairs. My one science fair student displayed his computer game project and it was well attended and received. Next year, as we are involved in authentic NASA research, we’ll have more students doing the real thing. But more on that next post.

Moon craters

Moon formation and evolution demonstration

Josh shows game

Demonstrating the "Salt the Slug" game

Silver group presenting

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titration

Students preparing for an acid-base titration

My last post told about our school’s trip to Moab in March and about the discovery of uranium in that area by Charlie Steen. Since then I have not been as active on this blog because I have been spending much of my spare time finding and applying for grants and now preparing for my fall classes. The last term in chemistry was also fairly hectic as we went through several units, including acids/bases, electrochemistry, and thermochemistry.

Titration equivalence point

Finding the equivalence point in an acid-base titration

The grant game isn’t a very fun one to play. There are many losers and only a few winners, and a great deal of effort is required for what is often no reward at all. Unfortunately, as science teachers, we know that to do the engaging, exciting hands-on activities that are the hallmark of good teaching, we often need funds well beyond what our school districts can provide. During difficult financial times, when district budgets and state tax revenues are shrinking, more and more of us are applying for ever scarcer opportunities. So it becomes a numbers game; the more grants you apply to, the more your odds of success for a few of them. Sometimes you luck out.

During the period between March and May, when classes ended for the year, I applied to three grants. Two I haven’t heard back from yet (the Dreyfus grant program and the Presidential Award for Excellence in Math and Science Teaching [PAEMST]) but one, the McCartney-Dressman Grant, sent me a form e-mail last week saying we had not been selected. There were over 400 applications. In many cases, including this one, grant monies have stipulations such as requiring the schools to have a high number of underrepresented students, which means having a certain percentage of students with minority status, or classified as poor by the percentage applying for free or reduced lunches, or by being in an urban or rural geographical area. Walden School is located in Provo, Utah, which is not rural or urban, and although some of our students are on free or reduced lunches, the percentage isn’t particularly high. In other words, we’re not considered underrepresented. I knew that going in, but decided to try anyway.

For the PAEMST program, this is the first year in 15 that I have qualified. To apply, one has to be a science or math teacher (at least 50% load) in a public or private school and the application process is pretty intimidating. I went to a presentation at the Utah Science Teachers Association conference this last February, and found that in addition to a lengthy essay with supplemental exhibits, one has to also provide a 45 minute video of teaching that has no breaks in it – just one continuous lesson. This is harder than you might think, even for a video professional like myself (maybe especially for me) because I want good quality video as well as good quality teaching. I filmed my chemistry classes on two different days doing activities – one was testing Charles Law that gases expand when heated by having them measure the diameter of balloons as they were dipped in water of different temperatures. That video looked good and had some good comments by the students, but as I moved the camera the video started and stopped on its own, so I couldn’t use it.

Molarity problems

One of the requirements of the PAEMST application: Provide proof of student learning

Then I videotaped my students doing a lab testing the voltages between different metal electrodes. Not as interesting, perhaps, but it went well enough. I got some nice letters of recommendation from a student, a fellow teacher, and my school’s director, wrote up the essay, created a ten-page supplement document, and sent all of this off by the deadline in May. Now the people in Utah have to decide which applications to send on to the national selection committee, and we won’t find out if we’ve won until next May (a whole year). Then in December, 2012, if I’m selected, I get a trip to Washington, D.C. to meet President Obama (maybe – sometimes the president doesn’t show up to present the award named after him) and receive a check for $10,000. Yes, it’s quite a process and if I don’t make it (I don’t know how many actually finished applications – probably ten or so) then I have to wait for two years (2013) before I can apply again as they alternate high school and elementary teachers. Each state gets one math teacher and one science teacher per year (although sometimes the national committee doesn’t select anyone from a state if they feel none qualify).

Charles law lab

Results of the Charles Law lab

As I was looking over the list of previous Utah awardees, I came across the name of a teacher I used to teach with at Juab High School. Janet Sutorius is an excellent math teacher who has also participated in the NASA Educator Workshop program at Dreyden Field Research Center at Edwards Airforce Base. Even after I left Juab HS, I did a workshop presentation with Janet on NASA educational programs at a state conference. Here is a nice article about Janet as an alumnus of Brigham Young University: Janet Sutorius Presidential Award. Other past awardees I know include Duane Merrill (I learned how to teach conceptual physics from him), Ron Cefalo, and others. These are all excellent teachers and role models for me.

The fact that I’ve been out in the wilderness teaching multimedia for ten years means I haven’t been in the spotlight for science teaching (even though I was doing all the NASA stuff). I was actually better known outside of Utah than inside. I did present at the USTA conference frequently, including this year. Many of the people I worked with as a NASA/JPL Solar System Educator had been Presidential Awardees, and when I asked about the program they all said I should apply. But I had to be an official science teacher before that could happen, and this year is the first time since Juab High School. I think I have a strong application – I’ve certainly done more on the national level for teacher professional development that anyone else I know in Utah, but that is just one dimension they look at. I think my content knowledge is excellent, and I’m strong on the other dimensions as well. Anyway, win or lose, I have tried. There have been many times in the past when I have applied for similar programs and thought I could never be selected but was. Maybe this will be one of those times. I just wish I didn’t have to wait so long to find out!

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My last post had me still in San Francisco at the NSTA national conference. That was March. Now it’s May, and I don’t quite know what happened to April. Let me try to catch up on myself and this project.

Me and Explore Mars

Chris Carberry, Myself, and Artemis Westenberg of Explore Mars

Back in San Francisco, I had just been awarded 3rd Place in the Mars Education Challenge by Bill Nye (yeah, that guy) and by the Explore Mars Foundation. That was on Thursday, March 10. On Friday, March 11 I attended a number of excellent presentations including one on an online student science project from Mt. Pisgah Observatory to classify stars based on their absorption spectra. Thousands of photographic plates with the stars’ light refracted into spectra have been digitized and made searchable. A spectrum from a star can be compared against standard spectra for major stellar classes and subclasses. I will incorporate this activity into my astronomy classes.

My second session was to be over in the Moscone Center on how to use the iPad in science education, a subject I’ve talked about here before, but when I got there the room was packed and people were standing in the aisles and flowing into the hall. This isn’t too surprising – as I saw later that day at the nearby Apple Store, the lines were very long (all the way around the block) and Apple employees were handing out fruit (apples, of course, and oranges) and granola bars just so people wouldn’t pass out from lack of food for waiting so long. The reason: the iPad 2 came out that day.

Apple lines

Lining up for the iPad 2 at the Apple Store in San Francisco

Instead of the iPad session, I went next door to a good session on project-based learning in the classroom, where a junior high in Lincoln Parish in Louisiana has created a program that is completely project based, yet covers all core curriculum. I found out more about it from the presenters afterward.

I had planned on going to more sessions, but since I was in the Moscone Center it seemed a good time to check out the dealers exhibit. The exhibit hall is a huge, cavernous space with the big name companies jockeying for prime spaces by the main entrance and smaller companies along the aisles in the back corners. I was ostensibly looking for the Explore Mars booth, but I systematically covered the floor and visited anything that caught my eye, picking up a lot more materials to take home than I really wanted to. I was glad I left some space in my suitcase. I finally found the Explore Mars booth on the NSTA aisle (the competition was sponsored by NSTA) and I reported in to Artemis and Chris, who said that the first place winner had arrived and that we would have another small presentation later that afternoon.

I went to lunch, finding a place about a block away called Mel’s Diner. As I sat down at a stool at the counter, the person sitting next to me turned to me and said, “Well, Dave, how are you?” It was Eric Brunsell, who now teaches at the University of Wisconsin at Oshkosh. I first got to know Eric through the NASA/JPL Solar System Educators Program (SSEP), the same group I had dinner with the night before. Eric was with Space Explorers, the group that managed the training sessions for SSEP. We had a good talk about what he’s been doing and on the problems currently being faced by teachers in Wisconsin, where the governor is trying to destroy the teachers union and cut teacher benefits and retirement.

Down to the Bay

Looking down to San Francisco Bay from the top of Nob Hill

Back at the Moscone Center, I reported in at the booth and met Howard Lineberger, the first place winner. Andrew Hilt (2nd place) and Howard and I stood with Artemis and Chris and officials from NSTA for more photo ops, and were interviewed by Chris on camera on our feelings about Mars exploration. Chris and Artemis had to go to another reception, so they asked us to man the booth until the end of the day. Andrew and I talked to anyone who was interested about the competition and showed them our lesson plans.

Chinatown

Chinatown in San Francisco

Afterward, we decided to walk up to Chinatown for supper. We headed to my hotel to drop off my stuff, then to Andrew’s hotel, then we walked up Nob Hill. We wound up going too high (it is quite a steep hill and we got a good leg stretching) and had to wander back down to the east into Chinatown. I found a really good Chinese bakery, where we sampled the yedz (coconut rolls) and I later bought a koushu binggan (kind of a graham cracker cookie). We found a promising SzeChwan restaurant and had supper. I found out the Andrew and Eric Brunsell are friends and have worked on common projects together. Small world! We also compared notes on our astronomy classes. We walked back down to where our hotels were, and I said goodbye (Andrew is heading home tomorrow). I found a good souvenir cable car ornament for my wife, then headed back to my hotel.

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The Mosser Hotel

The Mosser Hotel, San Francisco

The last two weeks have been crazy busy as our third term has ended, our Intersession classes have begun, and I’ve prepared to travel to San Francisco for the National Science Teachers Association Conference.

During Intersession our history teacher at Walden School (Eric) and I have put together a CSI class, coming up with a scenario, clues, evidence, witnesses, etc. On the first day, we trained the students what to expect and divided them into groups, including three students to be lead detectives. I also ran them through my old “Murder on the Carob Bean Queen” activity, where they must solve a paper mystery that requires group collaboration. On Tuesday we planted the evidence, including a very well made up dead body, multiple sets of footprints, and various physical clues. I even got some beef blood from the local supermarket and splattered it over the scene (getting quite a bit on myself – I was a bit overenthusiastic on how I smacked the container). While I was doing this, Eric had the students inside with a guest lecturer from the medical examiner’s office. She brought slides. I was glad to miss it. Then we took the students outside to the crime scene and had them collect the evidence. They did pretty well, except they only got two footprints cast, the rest of the prints either being ignored or obliterated as the team walked all over the scene. Wednesday we started cataloguing and analyzing the evidence, as witnesses started to come forward and the crime started shaping up.

Lobby of the Mosser

Lobby of the Mosser Hotel, San Francisco

At the same time, I was busily getting my bags packed, last minute changes on the presentations ready (including quick videos of Cripple Creek and my students’ chemistry demonstrations), and all the details done that must be done.

On Wednesday afternoon, I flew on a small Skywest Puddle Jumper from Salt Lake to SFO. I sat by a pre-teacher from Louisiana State, behind two other teachers, and they behind yet another teacher, all going to the conference. There must have been quite a few more on the same plane. We teachers are quite the gregarious bunch.

The plane flight was uneventful, and in between chatting with the other teachers I watched an episode of Star Trek Enterprise on my laptop. There’s just something oddly fulfilling about watching Star Trek on a laptop computer while flying at 35,000 feet. We had a nice view of San Francisco and the Golden Gate Bridge from the air as we circled around to land. I rode into San Francisco on a SuperShuttle van with yet more teachers to the Mosser Hotel. I selected the Mosser because it is inexpensive (about $60 per night, which is really good for a San Fran hotel). The drawbacks are the tiny rooms and shared bathrooms, but the beds are comfortable and the hotel staff friendly. After settling in, I walked over to the Moscone Center and picked up my registration packet. I found a Mexican restaurant in the Metreon, and sat with a teacher named Matt who teaches in an ex-patriot school in Bangladesh. We had an interesting conversation about the challenges of teaching in a country with such severe poverty and population issues; he tried to paint a picture of just how terrible the traffic is, for instance, and how prone to disasters of every sort the country is.

San Francisco skyline

San Francisco Skyline from the Moscone Center

After dinner, I returned to the hotel and crashed. It was a long day, and tomorrow will be very eventful. I present the Elements Unearthed project, and I have a reception to go to where I’ll receive a “major award” (although not from France or in a box marked “Fragilé”). Just thought I’d end on a note of suspense . . . .

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Gay eyeballs

Making gak eyeballs at Walden School

This last week was our final week of Fall Semester at Walden School, and for their final test my chemistry students planned, practiced, and presented chemistry demonstrations to their peers and to Walden’s elementary classes. Altogether five groups of students presented to the elementary school on Wednesday, Dec. 15 and the rest of the student teams presented on Friday, Dec. 17.

I’ve discussed my rationale for doing this in previous posts: that this is an excellent method for generating excitement about STEM in elementary students as they see their older siblings and high school students working with and presenting science. Certainly the younger students were very excited and attentive; they were eager to participate and asked good questions.

Raising hands

Students at Walden School participating in chemistry demonstrations

For me, though, the real reason for doing anything in my classes is always how it will benefit my students. Taking 3-4 days out of our curriculum to practice and present these demonstrations is hard to justify unless it has strong pedagogical advantages. The justification is this: as my students write up their demonstration scripts and outlines, as they practice talking about the science they are presenting, and as they prepare to answer questions from the audience they are thoroughly learning the chemistry behind their demonstrations. They are going beyond hands-on labs to share what they have learned, and that learning will be indelible.

Karlie and Sofia

Karlie and Sofia demonstrate hand warmers

The topics of the demonstrations had to related to the individual element/materials research project of one of the group members, which they are continuing to work on. Here’s what was presented:

Sofia, Karlie, and Jerry demonstrated the principles behind hand warmers by showing the rapid crystallization of sodium thiosulfate crystals that had been heated and then cooled down. They also talked about crystals in general.

Making gak

Mari and Casey help students make gak

Ryan and Casey, with help from Chelise, Lindsey, and Mari, demonstrated how to make gak (a polymer made out of white glue and borax powder). This is an old standby demonstration, and the kids really enjoyed it.

Copper demonstration group

Genny, Rachel, Jared, and Morgan demonstrate copper's properties

Genny, Rachel, Morgan, and Jared demonstrated aspects of copper chemistry. They handed around samples of copper ore (Rachel’s uncle is an engineer at Rio Tinto’s Bingham Canyon Mine in Utah) and showed a methanol version of a flame test (including copper salts). Jared demonstrated the alchemist’s dream reaction: turning copper into gold (actually brass).

Kinesthetic activity

Sid and Sam use a kinesthetic activity to demonstrate magnetic induction

Sam and Sid, with help from Josh, presented the idea of magnetic induction and discussed how modern electrical generators work. Sam actually built her own alternator and induction coil, and Sid presented on his research about the use of wind power to generate electricity. They also created a fun kinesthetic activity to show induction.

Burning magnesium

Karl and Nicona demonstrate burning magnesium

Karl, Nicona, and Tanner presented on the properties of the elements; they did a flame test as well, and demonstrated what magnesium ribbon looks like when burned and how fireworks get their colors. They also had sparklers for each of the students to try out.

Cabbage pH

Sonora, Dallas, and Morgan demonstrate cabbage pH

In class on Friday, the other groups presented their demonstrations. Sonora, Morgan, and Dallas presented the red cabbage pH demonstration that is one of my favorites.

Untarnishing silver

Mari and Holly demonstrate how to un-tarnish silverware

Courtney, Holly, and Mari showed how to untarnish silver using baking soda and aluminum foil. They even included a correctly balanced chemical equation, although we won’t be learning about those until we return in January.

Dry ice group

Libby, Lindsey, and Chelise demonstrate the properties of carbon dioxide

Chelise, Lindsey, and Libby presented the properties of carbon dioxide gas and dry ice. They showed how regular matches go out in carbon dioxide, but that magnesium burns even brighter when placed in carbon dioxide.

Olivia and Jace

Jace and Olivia explain the ingredients of gunpowder

Jace and Olivia talked about gunpowder, how it is made, and why it is dangerous. Jace has experience working with black powder (he has his own muzzle loader – this is Utah, after all) and he created some raw gunpowder, which he burn outside. They also demonstrated the “fire writing” demonstration of drawing on a piece of paper with a saturated solution of potassium nitrate, then touching a wooden splint to the edges of the writing to see it burn letters through the paper.

Josh and Jess

Josh and Jess demonstrate the principle of density with salt solutions

Josh and Jess presented on salt solutions and how they can be used to determine the density of objects. They showed how an egg will sink in pure water but will float in salt water.

We also videotaped as much of the presentations as we could and took quite a few photos; those students that weren’t helping present helped with the photography.

Burning gunpowder

Burning gunpowder

When their demonstrations were done on Wednesday and Friday, my students were excited about what they had done and the feedback they’d gotten from the younger students. They still have to learn some showmanship and presentation skills (which we’ll continue to work on), but based on what I saw and what the elementary teachers reported, the science content was excellent. They and their peers filled out evaluation forms (and I will as well) so that they can improve on their presentations for the next round in January.

Golden pennies

Golden pennies

It was a lot of work to prepare for this. Now my lab room is a mess and I’ll need to take a day during Christmas break to clean up and re-organize (and I think I forgot to throw out the leftover red cabbage pulp that’s in my trash can, so I’d better go clean up tomorrow). But despite the work and the lost time, I’d say these demonstrations were well worth it. As we go through the second semester, the students will present at least twice more, including a final time at a back-to-school night for their parents. We’ll polish the delivery, add more science explanations, create slide shows and videos to supplement their demonstrations, and by the end of the year these will be incredibly well done.

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It’s now 11:05 a.m. on Saturday, March 20 and my presentation at the NSTA Conference in Philadelphia is done. Whew! But more on that later. This post will seem to be off on a strange tangent at first, but I will tie it into science education in the end.

The Shadow Line

The Shadow Line

While riding on the Philadelphia public transportation system last summer (SEPTA) I usually took the 101 surface light rail route to the 69th St. Terminal, then the Market-Frankfurt line to the 5th St. stop in the historic district of Philly. I noticed something then that puzzled me – the main line would always bypass certain stops, such as the stations at 22nd and 19th Streets. I could see there were stations there, and people waiting, and occasionally a trolley car, but there seemed to be no connection to the main line – a complete system that I only got glimpses of. The last few days, I’ve been staying out in Darby and taking the Route 11 trolley/subway to the Juniper Station under City Hall, then walking to the Convention Center. Now I know what that other system was – a completely different sub-subway, a kind of Shadow Line, that runs parallel to the main subway trains for part of its length. It only connects in certain places, such as Juniper Station, which is under the main 13th street station, at 30th St. for University City, etc. Now I am now one of those people I glimpsed last summer, riding the Shadow Line.

Juniper Station

Juniper Station

It occurred to me last night, riding back to the friend’s house where I am staying, that education is like the Philly transportation system. We as teachers are riding the main line train – zooming in and out with our (supposedly) greater knowledge and experience and thinking we know how our students think and where they live, yet we are really only getting glimpses of them in the few places we can actually connect. It is this disconnect that causes most of our problems as teachers (and as a society); we have far too many places where we don’t understand each other, don’t connect, can’t relate, and don’t communicate. Racial strife, the disparity between rich and poor, the digital divide, the generation gap, etc. are all created by the disconnects between individuals and between groups.

Connections

Connections Between Stations

Education is all about building bridges across these gaps, making the connections between their world and ours. If teachers and other adults are on the Main Line, then our students are on the Shadow Line and our classrooms are the stations. Our job as educators is to connect the lines (lives) of our students with our lines (lives) as adults through our classroom stations.

I tend to think of technology as an end-all and be-all of teaching (I”m a techie, after all) but I need to remember that technology is only there to build these bridges and make connections, to give us glimpses into the worlds of our students and their ways of thinking, and as such is no more valuable than any other teaching method or technique. The fundamental thing is learning how to build a community of trust and mutual support and respect in a classroom where students can freely express themselves and learn from each other. Technology can certainly help to do this, but it is only part of a well-constructed and well-taught class. Some of the sessions yesterday reminded me of this fact (especially one by Joan Gallagher-Bolos who teaches an extraordinary chemistry class in Illinois, where students learn to trust and support each other, to speak their minds and make a contribution, as well as learning chemistry). I can only hope The Elements Unearthed project will help build communities of students, in local towns, and across borders. If not so, then just making gee-whiz videos for the Internet is rather pointless.

Yesterday was very much about making connections. I attended sessions taught by, or ran into, many friends and associates from my days in two NASA educational programs, the NASA Explorer Schools program, in which I was a facilitator at JPL for three summers, and teachers in the Solar System Educator Program. It’s been over five years since I’ve seen them, but seeing them again has helped re-ignite my passion as a science teacher and reminded me of the communities of teachers I’ve been part of, renewing the connections I’ve had with these amazing educators. A group of us got together for dinner last night and it was as if I had never left the program; they welcomed me back even if only as a visitor. I am still part of their community, just like I will always be from Deseret, Utah even though I haven’t lived there since 1983. I also spent time meeting and building new connections, finding new ways to collaborate, and new ways to build bridges.

Ota Lutz

Ota Lutz of JPL

I”ll post more later today on my presentation. Now I’m going to brave the Exhibitor’s Hall. More connections to make . . .

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Possible game interface for iPad

Mineral Identification App for iPad

Since Apple, Inc. announced the release of the iPad two weeks ago I’ve been reading a lot of comments and blogs about how useful this device might be in education. Some excellent posts are being written on the possibilities. Here’s one: http://www.edutechnophobia.com/2010/02/six-ways-the-ipad-will-transform-education/ I haven’t weighed in on the issue myself yet because I’ve been so busy preparing the first few podcast episodes that I keep promising for this site. But more on them later. As for the iPad, providing they add some capabilities such as USB, Flash support, and multi-tasking, I believe it will be a platform of great benefit to science teachers in the following ways:

1 – Replacing expensive textbooks: All of us who have been classroom teachers know that printed textbooks have become outrageously expensive and in technology and the sciences they are outdated before they even go to print. Yet having a handy source of general information on a subject that is grade-level appropriate and tied to national standards and comes complete with problem sets and review questions, test banks, on-line resources, and all the other associated items is a very valuable resource for teachers. If all of this can be ported to an e-book format and read on the iPad (with added interactive and multimedia touches) then the purchase of an iPad for each student becomes truly economically feasible for schools, especially when you factor in that it also replaces most needs for student computers and graphing calculators and merges all these technologies into one device.

2- On-line Testing: iPads have the capability of simplifying student assessment by making it readily and cheaply available at any time on-line. Teachers, with appropriate application support, will be able to assign and write quizzes, tests (both unit and end-of-year state tests), and other assessment tools which students can answer directly on the iPad and receive instantaneous feedback. Many states, including Utah where I am located, are moving their end-of-year testing away from pencil-and-paper multiple choice tests to on-line testing that can incorporate many forms of questions and be skills-based and well as knowledge-based. For example, a chemistry test could incorporate a virtual lab situation as a test question. Which brings up usage 3:

Interactive periodic table

Interactive Periodic Table App

3 – Virtual Science Labs: With the accelerometer and gestural controls of the iPad, science teachers and curriculum developers can program virtual labs that mimic a student actually picking up and weighing reagents for a chemical reaction, calculating the atomic weights and stoichiometric ratios, observing and analyzing the results (say of a virtual pH titration), and comparing student answers with accepted answers. Although this can’t take the place of hands-on science labs, it could certainly help to prepare the students for the real experience and help remediate students who miss the day of the lab, and reduce costs and disposal concerns. Virtual labs could also be created for Earth science (a virtual mineral field test kit), meteorology (viewing cloud cover, barometric, temperature, relative humidity, and other data and then predicting the weather), physics (lots of possibilities here), and so on.

4 – Student Collaboration: This is my big area right now – getting students to collaborate with each other to discover knowledge and synthesize it by creating their own content for the use of other students, such as this Elements Unearthed project to develop student-created podcasts of history and usage of the chemical elements. Imagine a group of students taking iPads on a field trip to a local watershed to record measurements of the water and soil, plant and animal life, pollutants, etc. and recording all of this data tagged with GPS data, then uploading it to the Internet and making it available to students worldwide. The iPad therefore becomes a remarkable enabling tool for citizen science. Imagine these same students using a wiki page to collaborate on writing up their results, or Google docs, or even sharing an iPad as a group to write up their findings in Pages and as a Keynote presentation, with supporting spreadsheets from Numbers. I have seen some amazing things done in classrooms through my work with NASA and my frequent attendance at science and technology teacher conferences using technologies that are far less capable than the iPad (including PDAs, GPS devices, etc.). Given teacher creativity, the appropriate types of applications, and an enabling technology like the iPad, and the educational possibilities are endless.

5 – iPads as Game Platforms: Games in education? This scares a lot of teachers, but it doesn’t have to. Just talk to the educational people at Apple, Micrsoft, and Sun Microsystems (to name a few) – and I have talked to them – and you’ll be amazed at what’s coming and how it can engage students in education through doing something that’s intrinsically fun. Education doesn’t have to be boring – in fact, it’s much more effective if it is fun. Now we just need to have the imagination to create the educational games and content. I have a few ideas, and I’m trying to talk to some software developers about some apps that would be ideal for the iPad and would help teachers to teach and review concepts in chemistry, physics, and other sciences. My media design students were assigned, as part of their learning of Adobe Director and Lingo programming, to design, create, build, and program a game on such topics as Mars exploration or the history of AM radio. They were simple yet powerful (and fun) games that could easily be ported to the iPad and used by other students. Imagine if we have students create iPad apps for other students . . . now that would be powerful learning, for both the creators and users.

I have much more to say on these issues, and others are already saying many of the same things. I am attaching a .pdf file with more complete examples here:

iPads_in_Science_Education

Meanwhile, the podcast episodes are still coming – I have prepared the full 45-minute version of Dr. Scerri’s interview on the history of the periodic table, which is now ready to export, and will begin editing it according to the scripts I’ve worked out into two 15-minute videos with some great images and animations to go with them (all ready to go). The three episodes on Greek matter theories and two on beryllium mining/refining are also coming but will take more time. I need to have at least 5-6 episodes complete and available by the time I present at the National Science Teachers Association conference in Philadelphia in March.

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Now that I’m healthy again (hooray!) I’m back at work on The Elements Unearthed project preparing to write up a major grant application for the National Science Foundation for their Informal Science Education program. The due date for the application, which must be submitted electronically through their FastLane system, is Nov. 19 but my goal is to have it all done by Saturday the 14th. I had applied for this same solicitation last year and was declined. The reviewers all said that the idea behind this project is worthy and that I should re-apply, but that there were a few weaknesses to my proposal that need to be addressed. One was that my evaluation/assessment plan at the end needed to be better defined and thought through, and another was that I am basically the only administrator of the project. What would to happen to the project if I were to become ill or unable to finish it? My recent bout of kidney stone/influenza had me down for about 3 1/2 weeks, and it’s served to underscore the need to set up strategic partnerships and to share decision-making with others on this project. To that end, I am working to not only set up several additional site visits/projects for this year but to partner these projects with local museums. I am also working to create an Advisory Board consisting of science educators (for content appropriateness), industry leaders (including mining and environmental groups), and marketing/distribution organizations. I won’t say yet who I am trying to get on board, but things are moving forward and by the time I submit the grant application I’ll have worked out several partnerships.

Quality vs. Effort Cuve

Quality vs. Effort

I also hope to have at least the beginning of the Elements Unearthed Podcast set up on iTunes so that the grant reviewers can see examples and because it’s high time we got it up and running. I keep promising it will be soon, but doing the final editing on the MATC student videos is very detailed and time consuming work. I always told my students that the relationship between effort and quality on any project isn’t linear (if you work twice as long you get twice the quality). It’s actually an exponential (or even hyperbolic) curve. In the diagram shown here, most high school students are satisfied with producing a work that is of good quality. After all, that’s what their teachers usually expect for a grade. They are rarely asked to produce a work of excellent quality (which is expected in the professional world). One might think that it only takes a little bit more work to turn a good project into an excellent project, but as the quality level increases, the amount of time and effort becomes steeper. It takes at least as much effort to go from good to excellent as it does to go from start to good, or in other words, if it takes two months to produce a good project, it will take four months to produce an excellent project. Which is why I chronically underestimate the amount of time it takes to complete a project. Sometimes students (and adults) get the idea that a project has to be perfect before it is released to the public or declared “done” (I suffer from this perfectionistic attitude all too much myself). Looking at the chart, you can see that the curve becomes infinitely steep as one approaches perfection – in other words, perfection takes an infinite amount of effort and can never be reached. Practically, it means that one can tweak and modify a project forever and still find things that aren’t quite right. The answer is somewhere between good and perfect. To be competitive and to stand out above all the other podcasts out there, our episodes must be excellent. Good isn’t good enough. But eventually I’ll have to let go, say the episodes are finished (though not perfect) and simply send them out to the public. They’re not there yet, but they soon will be (tweak, tweak). I want to have at least three episodes ready before setting up the podcast site at iTunes, simply because I don’t want people to write this off as one of those single-episode podcasts that are all too frequent on iTunes. My goal is that this will be one of the premiere podcast sites for chemistry education, with eventually over 100 episodes about five years from now (and over 20 by May, 2010).

In the meantime, I have prepared a final video of an episode I created last year to explain this project and its rationale. I have already uploaded the video in two parts to YouTube (just search for “Elements Unearthed” and I’m sure you’ll find them, but here are the links:   Part A:  http://www.youtube.com/watch?v=YA_lwqDm-TI and Part B:  http://www.youtube.com/watch?v=5jOyJosYVOE). I am attaching the two parts here for you to look at as well. They explain more what the project is, why we are doing it (our four major reasons and objectives), and give theoretical and philosophical justifications. I have created a series of animations and have many quotes from experts and recent studies about why projects like this one are essential for keeping the U. S. at the forefront of STEM education, and why utilizing citizen scientists and historians can open up the quantity and quality of science done in this country, and why using student teams is critical for this project from the perspective of educational theory. Please watch them and make comments back. I have set up a new e-mail address specifically for this project. It is:  elementsunearthed@gmail.com. I hope to hear from you soon.

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