Welcome to The Riddler. Every week, I offer up problems related to the things we hold dear around here: math, logic and probability. There are two types: Riddler Express for those of you who want ...

Mathematical models are important tools for understanding the behavior of complex systems. For example, in order to predict the growing consequences of climate change, researchers build computational ...

Want to learn more? Sign up for a free five-week email mini-course full of research-backed strategies to help students make sense of math. Give Cindy Cliche a math word problem, and she can tell you ...

For more than 30 years, calculus has been seen as the pinnacle of high school math—essential for careers in the hard sciences, and an explicit or unspoken prerequisite for top-tier colleges. But now, ...