The area model is a powerful visual tool for organizing multi-digit multiplication. It is build on the premise that the area of a rectangle is the length of the rectangle times the width. Thus, when...
Tag: multiply
The number 72 is frequently used to demonstrate deep mathematical structure. Not only does it have factors other than 1 and itself (it is composite, or not prime), it has quite a lot of them, and its...
I'm seeing multiplication tables like this in more and more schools. Each product is made up of the number of squares it represents. When would you use an area model? What does it represent? An...
Students are taught multiple models in mathematics. This gives them multiple opportunities to understand an idea, strengthens and deepens connections to the material, and provides multiple tools for...
Add, Subtract, Multiply, Divide in Word Problems? Beyond Key Words
Word problems are the bane of math students' existence. Sometimes we could easily solve the exact same problem if it came up in real life but struggle when presented as a word problem. Perhaps it's...
https://twitter.com/Cukalu/status/1550529549007560707 Arrays are introduced early in the elementary curriculum. As a bridge from counting to skip counting, to multiplication, and eventually the...