Scientific American

How to Identify a Prime Number without a Computer

For years, a French mathematician searched for a proof that a gigantic number is prime. His method is still used 150 years ...

How a medieval Oxford friar used light and color to find out what stars and planets are made of

During the 1240s, Richard Fishacre, a Dominican friar at Oxford University, used his knowledge of light and color to show ...
Edutopia

A 5-Stage Strategy Students Can Use to Tackle Word Problems

Stage 5: Justify thinking. A vital habit that many students need to solidify is recontextualizing after they solve ...

The Tactics Board: How the 3-4-3 works

Tracking the history of the 3-4-3 — from its defensive origins to the swashbuckling overachievers under Conte, Glasner and ...
PhillyVoice

Looking to 'get back' to himself, Sixers guard Jared McCain makes progress with Delaware Blue Coats: 'I'm getting there'

Jared McCain played 20 minutes on Thursday night – all in the first half – scoring 10 points in his NBA G League debut.