The new question-of-the-week is: What has been the best math lesson you have taught and why do you think it was so good? We’ve all taught some great lessons and we’ve also all taught some pretty bad ...

Rick: Your recent book draws on what you’ve learned about math while building Zearn. So, let’s start with: What is Zearn? Shalinee: Numeracy is one of the best predictors of a child’s success. Yet, it ...