Want to learn more? Sign up for a free five-week email mini-course full of research-backed strategies to help students make sense of math. In Sarah Cuddihy’s 1st grade class at Driscoll School here, ...

At Battle High School in Columbia, Mo., students in geometry class have swapped their compasses and protractors for hammers and hard hats. And they’re doing it for a good cause. The school is one of a ...

In the third century BCE, Apollonius of Perga asked how many circles one could draw that would touch three given circles at exactly one point each. It would take 1,800 years to prove the answer: eight ...

This is another story in KPCC's ongoing series, Classroom Core, that takes a close look at how the Common Core teaching standards are playing out in schools in Southern California. Amid rows of chairs ...