## Saturday, September 17, 2005

### Friday Funny

Okay, so it took me this long to actually LOOK at the stuff surrounding the posting area and realize that some of it could be fun/useful/overused in the near future.

One of the funny things that happened on Friday. I was having my precalculus class explore various angles on their graphing calculators to show that, yes, cosx*cosx + sinx*sinx = 1. We proved it together on paper, and then I had them enter various angles on the calculator. So I would start off saying and entering on the overhead calculator and having them enter on their calculators at the same time, "cosine of ...... what's your favorite angle?" and basically the first person that said something (36, 11, .... the inevitable 69 (ignored)) we'd all put that number in and lo and behold,
cos(13)*cos(13) + sin(13)*sin(13) ... hit enter .... and 1 magically appears. We did it a few times and also graphed and such. Well. One time, I again started off with, "cosine of ...... " and someone pipes up with, "your mama". Totally random and cause for giggles.