-each triangle is folded in half (altitude, twin triangles)
-the terms equilateral and equiangular are broken down (equi means equal, etc.)
-each triangle is glued only on the left side
-formula for side of the 30-60-90 triangle in the equilateral one.
-I questioned the 2nd class about the meaning of altitude and they said height, so I used the example of altitude of a plane being measured straight down (90 degree angle to ground).
-discussed angle bisectors and segment bisectors
-triangles were too small
-should've use a, 2a and a radical 3, instead of a over 2, a and a radical 3 over 2
-I didn't explain altitude as well during 1st class
-didn't even use the word symmetry
**I believe that teaching is different for each class to some degree. My teaching is better when I get feedback from my students and that happens more often in the 2nd Geometry class of the day!