Every student knows the quiet calculation that happens after dinner: How many hours are left, how much homework remains, and how much sleep can be traded for one more exercise, one more chapter, one ...

We have all heard the old saying, "Sleep on it," when trying to solve a problem or making an important decision. There might be some scientific truth to that advice, especially when it comes to ...

When you’re solving a challenging math problem, you know your brain is working hard. But what, exactly, is going on in there? Despite decades of research into math teaching and learning, there is ...