Thank you!

Diamond Mechanical diamondmechanicalnh.com

I was picturing that happening when I looked at your photos!

What a great idea! I love Compound Chem, but I don't print out his work enough!

One time, I had a student who made a presentation about fission for his history class. When I saw that he had mentioned Otto Hahn but not Lise Meitner, I totally flipped out - waving my arms, squeaking, etc. He added Meitner and told his class when presenting that I had insisted that he do so!

That looks awesome!

I haven't tried that one. After the demos I mentioned, I pull out the bell jar and also use a shop vac to suck the air out of a trash bag with a kid sitting in it, so we do talk about collisions on the outside vs inside of a surface, but not the terms external and internal pressure. Great idea!

Thanks for noticing! It's one of my favorites. We start with demos (heated stoppered flask, heated balloon-covered flask, twisted sealed water bottle, alka-seltzer + water in a stoppered flask), draw particle diagrams and arrows for each, and define pressure in terms of particle collisions.

I was hoping you'd like it! I sent you a chat message with the link to the google doc.

One of my favorites is my gas laws note sheet, where students draw arrows, particle diagrams, graphs, and example PVnT problems for separate gas law relationships, after introducing/'discovering' these relationships using demos.

I give out 'happy purple checkmarks' during classwork. I end up running around, but it reassures kids that they're on the right track/catches misconceptions early. And when I collect this work for small grades, it can go right in the gradebook.

I like the idea of checkboxes for particular problems!

That canceled TV show you’ll never stop thinking about.