Functions
I've got a lot more to add here when I get a chance. If you're chomping at the bit, head over to the Mathematics Assessment Project. *grin*
Function notation review

If I remember correctly, I found this over on Infinite Sums.

Which One Doesn't Belong
Reviewing Families of Functions 
Review families of functions using Mary Bourassa's Which One Doesn't Belong format. This takes two or three days to do well.
