Khan/khan-exercises — pull request #25255 by cwreynolds (2012-07-02 01:40:23+00:00)
Title: prototype exercise on squares and square roots

Hi, I'm new here and just experimenting. I prototyped an exercise on squares and square roots. It is was not motivated by any pedagogical need -- I know these topics are covered in previous exercises. This is intended more as a exercise in writing exercises. I am particularly interested in using interactive diagrams to help explain concepts that would otherwise be too numerical, symbolic or abstract for some to grasp immediately.

The exercise basically asks the student to square, or take the square root of, a given number. It provides a interactive tool to do the actual computation. The style is a bit like the Unit Circle exercise: a numeric answer is read off an interactive diagram, requiring a little interpretation of what is going on.

I'm not sure this is a candidate for integration into the Khan Academy curricula (and frankly don't understand what level of confidence and polish is implied by a “pull request”) but I would be happy to hear any feedback about the approach taken in this exercise.

Thanks,
Craig