Day 113: Board Meeting, Spring Period, & Representing Reactions

AP Physics 1: Coulomb’s Law Board Meeting

We had a board meeting to discuss the results of yesterday’s lab. Students were quick to buy into the inverse square relationship and to recognize how their results support that like charges repel and opposites attract. I haven’t found a great way to get at the meaning of the slope, but its at least pretty intuitive that the amount of charge should affect the size of the force.

ap wb

Physics: Spring Period

Students collected data to figure out what affects the period of a mass oscillating on a spring. Today was one of the days when the progress my students have made in designing an experiment was very apparent, which made it a lot of fun to listen to them plan and troubleshoot their approaches.

spring

Chemistry Essentials: Representing Reactions

Students practiced translating between reaction equations, statements, and particle diagrams. One of the big challenges is my students were in very different places, especially when it came to particle diagrams and switching between names and formulas. About a third of my students took Chem Ess A with me last tri, so they were just extending some fairly recent learning. Another third took Chem Ess A with me tri 1, so have seen these skills, but haven’t used them in a few months. The rest of the students came to me from other teachers who don’t use particle diagrams and several haven’t had chemistry since last year, which gave them a much higher mental load. Most tables had a mix of students from each group, which meant there was a lot of peer teaching today, which helped with the variation quite a bit.

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