Posts filed under ‘Education Psychology’

Kid 2 Kid Puerto Rico Solar Oven Project

With the power taking so long to be restored in Puerto Rico, solar ovens could be really helpful.  So we tweaked the solar oven project to challenge students to engineer a solar oven out of household items that 7th graders could easily find and assemble.

  1. We started with a do-anything, make-any-old solar oven with no guidance. They got the hang of it, and some experiences to link the physics of solar ovens to. The challenge was to heat 60ml of water the most in 2 minutes. I provided boxes, pizza boxes, mylar survival blankets, masking tape, magnifiers, scissors, cling film and other office supplies I had lying around as they asked. This playing around piece might sound like a waste of valuable academic time but it really does make the rest of the learning and the engineering go MUCH more smoothly. It’s also straight up more fun for me – I hate having to over explain stuff and boss around kids who don’t quite get the instructions. Obviously, I keep an eye on safety and circulate all the time to answer questions and give encouragement/re direct. The level of engagement is so high that there are very few discipline issues – the chaos that seems to be implied is way less than you’d think.

2. Then we studied some physics on a need-to-know basis:

 

a. Energy transformations in appliances, toys, pets and cars to review concepts they learned in earlier grades.

 

b. We had to review the definitions of energy and matter with a card sort, this time on a continuum, rather than one or the other. Much easier this way.IMG_1624

c. Light and optics lab to learn about reflection and refraction using light boxes.

 

c. Students researched ideas from other solar ovens being used in the world – in developing countries, by off-the-grid homesteaders, by campers and even by The Chef in his solar oven episode.

3. They put together their knowledge of physics and already-invented solar ovens and designed new solar ovens to fit the challenge with a second build day.

4. All the ovens were tested for effectiveness (temperature change of 60ml of water in a bean can).  Good to repeat the test to iron out data collection issues. I have kids put the ovens by temperature rise rank on the black top so we can easily compare and contrast them.IMG_7364IMG_1727IMG_2179IMG_2961IMG_1731

5. We evaluated the ovens on the use of easily available materials, and on ease of assembly and use. Then we combined the best ideas – what do you think? Think, pair, share. Each class came up with a design that was based on one of the top two or three

6. Apply for a job in the How-2K2K Video Production Company. Here’s the list of jobs. The application was a half page for them to say why they wanted the job and why they would be good at it. IMG_5485

7. Review and test on the science concepts we have been applying – optics, spectrum green house effect, energy transformations. Students see the test and use it to guide their review – I’ll use different solar ovens and energy transformers for the real thing.

Here’s the test and answer sheets.

8. Make the How-To video.

This was harder than saying ‘Hey kids, now you know your jobs, make a video.’ Who knew? After some false starts (chaos 🙂 I grouped kids by their jobs and briefed each group on what I expected. The director(s) were only in charge of the filming.

It’s a good idea to let the ‘how to’ group re-assembling the solar oven rehearse first with the camera people. Maybe one to record a time-lapse, one to videotape and one to take stills.

Props was the hardest job in the end. Students had a really hard time getting past ‘we don’t have a steel bowl at home.’ end of story. Went over how to solve a problem like that and one mom did go out in the evening to actually buy something. Ugh, not what I intended. I used the props people as floaters to fill in for other jobs that arose.

We talked about ‘finding something useful to do’ if they had spaces of time when their job was not immediately needed. What a great life skill.

It was really hard for the directors to assert themselves with their peers, as it is for most of us.

I allowed a catch-up day for editors, script writers and any other crews to finish off their jobs. Much better than a rubbish end product.

9. The Kid 2 Kid Solar Oven How-To Movie Premiere!

Here’s one of our best videos from Period 7

Here is the link to our other videos. And from Marshall Sachs’ classes too.

 

 

 

 

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October 31, 2017 at 2:44 PM Leave a comment

Weighing in on Google and Chrome books

Using Google Classroom with Chrome Books for the first time and reacting to the NY Times article “How Google took over the classroom”.

Continue Reading May 21, 2017 at 7:47 AM Leave a comment

The ReWilding Project for NSTA

The specifics of exactly how to run the re-wilding project with your students, from us at Orinda Intermediate School to colleagues at NSTA Portland!

Continue Reading October 30, 2016 at 9:13 PM Leave a comment

Proposals – The Real World Bites

Preparing kids for the dog-eats-dog real world of work…

Continue Reading October 10, 2016 at 11:55 AM Leave a comment

Cool School Survey

Noticing patterns in data is a story – the initial ‘set’ is the experimental question. The data has hidden in it the resolution, at least partially. Like a joke with a set, an expected outcome and the sudden switch to something that is incongruous and yet makes sense. Unexpected truth looked at in a different way: why scientists are so fascinated is at least in a way, similar to reading a compelling and complex story that in science, never really ends.

Continue Reading September 30, 2016 at 9:18 AM Leave a comment

The Cool Box Comp.

How wrap up the cool shoe box competition: data collection and analysis with a minimum of time wasting frustration…

Continue Reading September 26, 2016 at 12:46 PM Leave a comment

Build Day!

How to love project build days with 156 twelve year olds…

Continue Reading September 22, 2016 at 11:44 AM Leave a comment

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