In the college classroom, it’s all too easy to talk at the students for 90 minutes – to just be a professor with a slide deck who tosses in a few canned jokes that you know work because you’ve already ...

Puzzles are a hands-on way to explore simpler and complex mathematical relationships, for everyone from kids to calculus students.

Math students may not blink at calculating probabilities, measuring the area beneath curves or evaluating matrices, yet they often find themselves at sea when first confronted with writing proofs.

I began online teaching way back in the late 20th century, using Lotus Notes. This was before broadband, before Wi-Fi, before ...