The Florida Department of Education has released examples of what it calls “problematic” material that led it to ban dozens of math textbooks — including a lesson with an algebra graph measuring ...

In math, as in life, small choices can have big consequences. This is especially true in graph theory, a field that studies networks of objects and the connections between them. Here’s a little puzzle ...

Editorial Note: Talk Android may contain affiliate links on some articles. If you make a purchase through these links, we will earn a commission at no extra cost to you. Learn more. The visualization ...