Teaching scaling can be difficult because students are required to think abstractly in math. There are a few important things your students need to understand in order to be successful with scaling. By clarifying these concepts, you can help your students better understand scaling.

## An object can be scaled up or down

When teaching scaling, draw three images on the board. First, draw your medium sized image. Then draw a smaller image. Below it, write scaled down. Next, draw the largest image, and beneath it write scaled up. Explain to your students that scaling can go up and down.

## Is the fraction greater or less than one whole?

Practice this concept many times before you even introduce scaling. If your students do not understand if a fraction is greater or less than one whole, they will have trouble with comprehending scaling.

## The rules for scaling

The most important concept for students to learn, are the rules for scaling. When you multiply by a fraction that is LESS THAN ONE WHOLE, the size will be scaled down. When you multiply by a fraction that is GREATER THAN ONE WHOLE, the size will be scaled up. By knowing this concept, students can determine if their answers are reasonable.