EPSILON-DELTA

A couple summers ago, I made some really beautiful ( I think) models to represent the kinds of figures we find the volumes of in calculus (...

When we work u-substitution problems in calc, the kids sometimes drop things like powers or a base of e  while they're re-writing their ...

I have an odd love for the unit circle.  I bet most math teachers do.  I had a professor in graduate school who said, "There's noth...

I love this comic by  Courtney Gibbons  on "How I learned the Chain Rule."  I showed it to my classes this year: I never re...

I'm always trying to fine-tune review activities.  I used to be really into review games.  I would spend hours creating games that we...