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, ...

Geometry is an important branch of mathematics, which we use to understand the properties of 2D and 3D space such as distance, shape, size and position. We use geometry every day: cutting paper to ...

Visit NAP.edu/10766 to get more information about this book, to buy it in print, or to download it as a free PDF. Today the United States has the challenge and the opportunity to provide all students ...

A new study suggests the students who used dynamic geometry software were more successful in discovering new mathematical ideas than when they used static, paper-based diagrams. A new study co-written ...

What mathematical knowledge do elementary teachers use in teaching? About 10 years ago, Deborah Ball and her colleagues at Michigan State University carried out a research project to address this ...