# Dyslexia: Multiplication with exponents using integral bases from the gr9 Math curriculum in Ontario

For Parent

## Multiplication with Exponents

Multiplication with exponents is a Grade 9 math concept that uses integral bases. Integral bases are simply numbers. In Grade 9 math, you will use integral bases to multiply exponents. An exponent is simply a number that is “raised” to a certain power (multiplied a certain number of times). The equation should look something like this:

Bn * Bm = Bn+m

For example, if you wanted to calculate 32 * 33, you would use the equation to solve it like this:

32 * 33 = 32+3 = 35 = 243

For a student with Dyslexia, there can be a few obstacles to understanding multiplication with exponents. Here are some tips for helping the 14 year old understand this concept:

## Issue #1: Understanding the Terms

The first issue the 14 year old might have with multiplying exponents is understanding the terms in the equation. To help with this, take the time to define each term simply and clearly. Explain what ‘integral bases’ and ‘exponents’ are, what it means to ‘multiply’ two numbers, and any other terms the student might not be familiar with. Make sure the student repeats each definition to you to show they understand the meaning of the words.

## Issue #2: Memorizing the Equation

The second issue might be memorizing the equation itself. To help with this, have the student repeat and write out the equation a few times throughout the lesson. Make sure they say both numbers and words when they read the equation out loud. Having the student create diagrams or visuals of the equation can help them to remember it better.

## Issue #3: Solving the Equation

The third issue is actually solving the equation. To help with this, break down each step of the equation and use manipulatives and real-life examples to help the student visualize the problem. For example, if the student is solving the equation 32 * 33, use 3 real-life objects to represent the 3 in the equation, and have the student “multiply” them by counting, and then use the objects to explain how multiplying the two exponents is similar to multiplying the two numbers written in the equation.

In Grade 9 math, you use an equation to help multiply exponents. The equation is Bn * Bm = Bn+m. an example of this equation might be 32 * 33 = 243.