From a democratic socialist in New York to moderates in Virginia and New Jersey, Democrats found success by focusing on the cost of living — not culture wars.

1. Fast and Slow Piles. This works well as a starting or closing activity. Students sort math fact cards into fast and slow piles. This visual way of tracking facts highlights which facts come ...

Learn the science behind perfect timing! We break down the Optimal Stopping Theorem. Discover the math that tells you the ...

The proof, known to be so hard that a mathematician once offered 10 martinis to whoever could figure it out, uses number ...