This lesson was split over two days.
On a Friday, when most of the students were gone on a field trip, I went over the derivation of the SAS Triangle Area Conjecture, and the Law of Sines. After the derivation I gave students time to catch up on past assignments.
Many students were able to follow the proof, and I didn't expect all to understand the proof fully.
On the second day I quickly reviewed the Law of Sines and SAS-Area-Conjecture. After a couple examples students began working on homework in class.
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