“Math is not linear.”
People say that, but do you believe it?
Here is the history of one person’s interaction with Khan Academy. Answer this person’s riddle: WHO AM I?
Judging by this historical document, how old do you think the person is? What is the grade level? Anything else you care to guess?
Yes, all these are trick questions. I will post the answer in comments on August 10th. Leave your guess as a comment and subscribe, to see the surprising answer.
Update: the mystery person revealed (see comments).