Students actively engage in tasks that are doable and interesting—which frees up time for personalized instruction.

What does a beauty queen have to do with school attendance? At one Maryland middle school, quite a bit. Deborah Dennie, the principal of the 1,000-student Leonardtown Middle School in Leonardtown, Md.

Mathematica needs you! Add, subtract, divide and multiply your way to victory. Meet the Karate Cats and practice spelling, grammar and punctuation as you chop, kick and smash the challenges. Join ...

Ammonia cracking can yield clean hydrogen, but metal catalysts face trade-offs that hinder bond breaking. This work shows ruthenium-supported nitrogen-doped ceria creates new sites that bypass this ...