Each Answer Hunt activity will last about 40 minutes. I use them at the end of each section for a fun activity that gets your students up and moving around the room!
The basic idea of each activity is: students start with a poster and then take the derivative (or integral) on bottom. Then they go around the room and find that answer that is on the top of another poster. They take this derivative/integral, and repeat!
My students love these--and you can get all 3 of mine for $3 (each is $1.50).