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 ...

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 ...

Imagine a classroom full of bright young students, all striving to do their best on a high school math test. They sit, heads slightly bowed, pencils ready, each one thinking about how to tackle each ...

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 ...

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 ...

The Seattle Times’ Education Lab examines the educational system from early childhood through post-secondary. Education Lab is supported by Gates Foundation, Ballmer Group and The Norcliffe Foundation ...