I used Khan academy as a supplement to my classroom instruction this year with great success... I assigned students one hour per week of calculus mission. Of course some did things other than calculus, and thought they were putting one over on me.
Next year I wanted to assign certain topic areas within the calculus mission. For instance, when we are in Limits, I would like to assign and track how they do on the 21 items relating to limits within the Calculus mission. Some for Continuity, with those 16 items, etc.
Any pointers on how to do this? How to track if they have mastered all 21 limits items, and 16 Continuity item, etc.?