Young students around the world struggle to memorize multiplication tables, but the effort pays off. Cognitive scientists say that learning 6 x 7 and 8 x 9 by heart frees up the brain’s working memory ...

This educational card game consists of fifty-three cards (this example has fifty-two, plus one glued to the back of the case), a pamphlet of instructions, and a case with lid. It is one of a series of ...