Wednesday, February 13, 2013

Day 95: ASA & AAS

Between not wanting to wrestle with the straws and pipe cleaners again, and not thinking that activity would continue to be as useful, I opted instead for a more direct discovery. Random Student #1 picks a number between 1 & 10. #2 picks a number between 20 and 70. #3 picks another number between 20 and 70. Now we can draw a line of length (#1 cm) in between a (#2) angle and a (#3) angle. Complete the triangle, measure everything and show that everyone's triangles are congruent (ASA).

For AAS, I show the basic outline of the proof that involves the 3rd Angles Thm with ASA rather than go through any specific discovery. 

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