This lesson moves into the teen numbers and gives some strategies for figuring out teen n This lesson moves into the teen numbers and gives some strategies for ...

Elections are all about numbers, sometimes hinging on miniscule percentage-point differences in turnouts. Math teacher Alison Strole’s middle school students know this better than your average ...

Relating addition and subtraction and playing the game BUMP; counting down. Relating addition and subtraction and playing the game BUMP; Working with numbers, starting with a number and counting down ...

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 ...

Two students in Danielle Adler’s kindergarten class at Marcus Hook Elementary School in Marcus Hook, Pa., prepare for an addition problem. Credit: Holly Korbey for The Hechinger Report The Hechinger ...