How can you have a proof without proving anything? Mathematicians found a way and, in the process, came to blows over it – ...

Math classrooms shifted over time to the discovery model. Not suddenly, and not without good intentions. There was a ...

This requires an algorithm: students are taught to stack one number atop another and multiply each digit of the bottom number ...

Many students see the equal sign as a signal to calculate, rather than a symbol of equivalence. Here’s how to clear up that ...

Below is an excerpt from the Preview newsletter, which goes out every Thursday morning to help you plan your weekend and beyond. Don't miss out! Sign up here to get it right in your inbox every week.