Descriptive set theorists study the niche mathematics of infinity. Now, they’ve shown that their problems can be rewritten in the concrete language of algorithms.

At a middle school in California, the state testing in math was underway via the Smarter Balanced Assessment Consortium (SBAC) exam. A girl pointed to the problem on the computer screen and asked ...

The debate over what early math should look like and what should be included in the Common Core State Standards for early mathematics has been contentious, to say the least. This story also appeared ...