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 ...

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.

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?

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 ...