Knowing your 4 times table is really helpful with your mental arithmetic, which will be handy in everyday life. If you know your 2 times table, then you’ll be able to crack the 4s in no time.

This content is provided by our sponsor. It is not written by and does not necessarily reflect the views of Education Week's editorial staff.

Stanford University’s Jo Boaler says teachers and parents should stop using math flash cards, stop drilling kids in addition and multiplication and especially stop forcing students to do calculations ...