Math teacher Emma Chiappetta uses a three-round exercise to help students not only recognize their errors, but also generate ...

Tessellations aren’t just eye-catching patterns—they can be used to crack complex mathematical problems. By repeatedly ...

Of all the abductions, this one is different.

I recently saw a coworker type out a SUM formula in Excel to get a quick total, only to delete it a second later. When I showed him a pro shortcut hidden in plain sight, he realized he'd been wasting ...

For centuries, the Pythagorean Theorem has occupied a unique position in mathematics: both elementary and profound. Its ...

Let’s prepare a pretend pizza topped with shapes! Let’s prepare a pretend pizza! While we sing along, we will discover the fun shapes that make up the most delicious pizza.