Create your own centimeter ruler. Then, estimate and measure with lengths with it. Warm up with a Mystery Math Mistake as you add two 2-digit numbers using a decomposition strategy. Think through ...

Easily calculate your true savings from a balance transfer by factoring in fees, interest, and payoff timing. Here's the math.

Math Notes is introduced in the latest version of iOS and iPadOS 18. It automatically calculates math equations and displays the results as you write. You can use it to solve various math problems and ...

Zachary Champagne’s 3rd and 4th graders figure out early on that this math class will be different when their teacher tells them: “I don’t care about the answer.” The goal is to shift his elementary ...

To lay out a set of stair stringers from scratch requires a little math, but not much. Equally important is some quiet time to run the numbers and at the same time to think about the construction ...