Day 94: TIPERs & Percent Composition

Physics: TIPERs

I introduced students to Trevor Register’s diagram for Kirchoff’s Voltage Law, then turned them lose on some questions from TIPERs that we used for the mistakes game. A lot of groups made good use of the KVL diagrams both in their groups and during the whole class discussion. We haven’t done the mistakes game much this trimester, but groups did a nice job of using their initial errors as a basis for their mistake.

IMG_1635

Using the KVL diagram

Chemistry: Percent Composition

Students did a lab to find what percentage of a stick of gum is sugar. This is one of the first quantitative labs we’ve done, and students struggled with a question about likely sources of error in their measurements, so that will take some conversation on Monday.

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