Handed back Quiz on Sig Figs, Rounding, Pythagorean Theorem.
Asked if there were any questions on the Quiz - there were no questions in Block 1B
There is an optional quiz on Quiz with more practice problems. It is optional but if students do it and get 100%, then it is a 5/5 in the gradebook.
Warm-up Quiz on the material of the last class.
Went over Quiz.
Described the 4 classes of solids: polymers, metals, glass, composites. Showed overhead of relative importance through history and discussed briefly.
Handed out lab packet for Crystal Structure of Metals.
Handed out Periodic Table.
Introduced and explained lab.
Described what was meant by "most densely packed plane" and how to choose the most densely packed plane from the layers you would make.
Handed out lab kits.
Students made crystals. Went over questions as a class. Got through #6.
Asked students to finish lab packet for homework.
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