Day 138: Multiple Choice, Pinholes, & More Limiting Reactants

AP Physics 1: Multiple Choice

After a short quiz, we used Plickers to review some multiple choice. There was a lot of good discussion about the problems and some good test-taking strategies also came out of the conversations.

Physics: Pinholes

Students made observations and dew ray diagrams for some pinhole viewers. They had some trouble getting images at first, but, once they got the hang of it, seemed to enjoy the lab. It was a nice, sunny morning, so we went out the back door of my classroom to look at things, but it was also chilly, so most students went back inside when they were drawing ray diagrams.

pinhole viewer.jpg

Chemistry Essentials: More Limiting Reactants

Students did some limiting reactant problems involving polyatomic ions. All of the problems were ones that could be solved by drawing a particle diagram, and students seem to be embracing those as a problem-solving tool.

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