Another constructive method to help children memorize single digit products is giving them equations where one number, which is represented by a symbol, is to be determined. For example, ” 4 x 3 = *”, ...

In “Do Sports Explain the ‘Math Gender Gap’?” (op-ed, Sept. 8), J.T. Young speculates whether “the way we teach math is somehow biased against girls.” A related issue is that recent teaching ...