In a recent Education Week survey of about 300 math educators, most agreed that it’s “essential” for students to have fact fluency in order to work on higher-order, conceptual math problems ...

Test your knowledge ahead of the 2023 New Year as Gergely Dudás, a graphic artist from Budapest, Hungary, shares a coffee cup math puzzle. Can you solve it?

Manipulating numbers in different ways, part of a supplemental math curriculum for Murphy’s whole class at Hilltop Elementary in this suburb of Philadelphia, is an attempt to address those problems.

Fundamental problems about multiplication — about, say, how numbers factor into primes — suddenly become much deeper and more challenging as soon as addition enters the picture. One of math’s biggest ...