When we learn something new, that information does not exist in isolation. It integrates into the complex landscape of our ...

The original version of this quiz misstated a figure in question two.

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 ...

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Every day, dozens of like-minded mathematicians gather on an online forum called Zulip to build what they believe is the future of their field. They’re all devotees of a software program called Lean.