Archive | Subtraction

“Math Cafe” Gives Students Options for Math Success

Students like to order off of menus when they are in math class. That means that they like to learn a variety of approaches and then choose the method that works best for them. This post shows teachers how they can teach the same skill in a variety of ways and thereby give students more […]

Addition and Subtraction: More Bad Behavior by Dear Aunt Sally

Aunt Sally also confuses students about addition and subtraction. Read this post to find out how to overcome the confusion.


November 2008 Problem of the Month: finding an alternative way to represent a number using nothing more than a few candles. Use number theory and flexible thinking to find a way to show the number. There’s a prize for the person who answers most quickly.