Y’know those weird rules on solving inequalities? How about explaining it using a number line?… More

Y’know those weird rules on solving inequalities? How about explaining it using a number line?… More

If your sense of number doesn’t get established, your brain can’t compress math learning. I’m thinking about using this principle to teach college algebra. What do you think?… More

Do your students struggle with setting up linear programming problems? Do you? Here’s a handy list of steps that will help. … More

Did you know you can teach square roots with fractional exponents – and it just might work better that using radicals! … More

The conversion from Celsius to Fahrenheit and back again can be strange. One way to understand it is on a graph. And you can use this to teach some linear algebra too! … More

What do you think about this analogy I use when teaching square roots and other manipulations of radicals? It’s pretty non-PC, but it seems to work.… More

Do you teach transformations? Are they tough to introduce? Try this activity!… More

I’ve always wondered, “Why is the y-intercept called b?” And just today I discovered the answer!… More

The latest and coolest in math games helps kids practice order of operations and other algebra plays.… More

## Why People Aren't Equal

What does it mean for people to be equal? And why are we using a math concept for people anyhow? … More