When I was 9, my family got a new computer. It was better than our old computer in every way save one: It couldn’t run my favorite racing game. What’s the point of a fancy new computer, I remember ...

Strategies used by third and fourth graders to perform simple multiplication problems were examined. Children participated in an interview and then completed a timed production task in which they ...

Artificial intelligence systems can write software and reason through complex problems. Yet even basic arithmetic can expose ...