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? In Part One, Beth Kobett, Jill Henry, Avery Zachery, Cindy Garcia, Molly ...

Math vocabulary alone isn’t a silver bullet—but research shows it’s linked to stronger academic achievement when paired with expert teaching practices.

The teachers were staring at a piece of paper with a small pencil drawn on it. Their trainer asked them: How long is the pencil? To find the answer, the teachers broke apart some of the small, ...