Another one of my favorite things that we did was memorizing the trig functions and memorizing the trig chart. These tasks had to do with memory and though they didn't seem like they would be easy it turned out not to be so bad.
Trig Funtions:
sin- y/r
cos- x/r
tan- y/x
cot- x/y
sec- r/x
csc- r/y
Trig Chart
In order of 0, pie/6, pie/4, pie/3, and pie/2
sin-0, 1/2, square root of 2/2, square root of 3/2 , and 1
cos- 1, square root of 3/2, square root of 2/2, 1/2, and 0
tan-0, square root of 3/3, 1, square root of 3, and Undefined
cot- Undefined, Square root of 3, 1, square root of 3/3 and 0
sec- 1, 2/square root of 3, square root of 2, 2, and Undefined
csc- Undefined, 2, square root of 2, 2/ square root of 3, and 1
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