Two mathematicians have proved that a straightforward question—how hard is it to untie a knot?—has a complicated answer.

DeepMind’s AlphaEvolve helps solve a math puzzle with Terence Tao, showing how AI can now invent new ideas—and prove old ones ...

New analysis compares literacy vs. poverty rates for 10,000 districts, 42,000 schools and 3 million kids. Is your school a ...

Try a straightforward three-step strategy to help students get comfortable with exploring challenging reading assignments.

The authors used a Bayesian modeling framework to fit behavior and serotonin neuron activity to reward history across multiple timescales. A key goal was to distinguish value coding from other ...

On October 28, 2025, the U.S. Court of Appeals for the Ninth Circuit upheld the structure and authority of the National Labor Relations Board (“NLRB”) against three constitutional challenges in NLRB v ...

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 ...

We measure the “warmness” of the dark matter, i.e. the comoving root-mean-square thermal velocity v hrms (1) , with nearly 3000 spiral galaxy rotation curves in the ...