Day 108: Experimental Design, Collisions, & Particle Diagrams

AP Physics: Experimental Design

Yesterday, students worked on an experimental design problem from the 2017 AP exam. Today, they exchanged work and used the scoring guide to assign points and give each other feedback. A lot of students were pretty nervous about giving their work to someone else; I think the simple act of recording points on a very tough problem raised the stakes more than I expected. Students still said they found the activity useful, so that may help ease the discomfort if we trade papers again.

Physics: Collisions

Students whiteboarded some of yesterday’s problems before taking a quiz on conservation of momentum. I had some students who actually consider conservation of momentum easier than impulse on a single object; one student told me its just like energy, but they don’t have to think about the different types.

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Chemistry Essentials: Whiteboarding

Students have been struggling with what particle diagrams are intended to show, so we started by brainstorming a list of characteristics of a good particle diagram and having some discussion about why they are useful. Afterward, we whiteboarded yesterday’s problems and did a gallery walk. This seemed to help reinforce the purpose of a particle diagram for a lot of students.

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