Every time I pop in here to see what's going on, I'm more of a fan! WOW!
These amazing projects are great examples of the fun & good things one can do with math, or said another way, a fun and good thing that requires some math, or at least careful measuring, to do. If only we could teach math while standing up, doing worthwhile/necessary/fun things, everyone would get & enjoy it, or at least more of it! Sorry for the nerdy interjection, couldn't resist!
