Category Archives: Arithmetic

Have you heard of a fact family? Does it make you think of the math mob? Or the truth police? Here’s what it is, really. Continue Reading →

The new math multiplication has parents confused as to why 5×3 isn’t 5+5+5. My new course shows a bit of reasoning behind it. Continue Reading →

Just as oil and water don’t mix, addition and multiplication don’t mix. Unless you shake really hard! Continue Reading →

Zero is useful, classy and a lot of fun at parties, but she can get you in trouble if you’re not careful! Continue Reading →

Sometimes it’s easier to see when a math problem is wrong than to see when it’s right. Here are some examples. Continue Reading →

Have you ever thought of fractions while doing laundry? There are some interesting (and enlightening) similarities! Continue Reading →

Download this handy prime factorization graphic organizer to help your students! Continue Reading →

Here’s a different way to start students off on multiplication – they get to use coloring, skip counting and patterns! Continue Reading →

Turn a dry factor tree into a beautiful fall math craft project! Continue Reading →

Dividing by zero might end the world. But what if you divide ZERO by zero? Continue Reading →