Over centuries, mathematicians have amassed an array of symbols—from arrows and crosses to shapes derived from letters—to ...

Brainteasers are more than just riddles wrapped in a package. They're a mental gym, a challenging playground where you can ...

Delaware Valley Elementary School recently shared some of what its students are up to these days. In third grade, students ...

In this course, eight professors share their disciplinary perspectives to help students analyze proposed interventions for ...

I started teaching in 1977, and across my nearly 50 years, I noticed that students were always interested in the history of ...