Arithmetic and Pre-Algebra Teacher Resources
Most elementary and middle schools just call this "Math". Here we cover everything from counting, number operations, and fractions to evaluating basic expressions and equations. All of this adds up to preparation for the eventual study of Algebra.
Showing 25 - 48 of 285 resources
How Do You Solve a Two-Step Equation with Fractions by Multiplying Away the Fraction?
3 mins 6th - 12th
The instructor shows how to first multiply an equation to get rid of the fraction. This is one method to solving a multi-step equation. After getting rid of the fraction, he shows how to use the addition property of equality to further...
How Do You Find the Additive Inverse of a Polynomial?
4 mins 8th - 9th
Finding the additive inverse is not as complicated as you might think. The instructor demonstrates how to multiply each of the terms in the polynomial by -1 and explains how this works. But wait, there's a quicker way. What's that you...
How Do You Use Addition to Solve an Inequality Word Problem?
2 mins 8th - 10th
Word problems. Inequalities. Money. What? Does Marissa have enough money left in her bank account to go to the movies? One variable, two given amounts. Set up this inequality to determine how much Marissa needs to have in her bank...
How Do You Add Mixed Fractions with the Same Denominator by Converting to Improper Fractions?
6 mins 6th - 12th
Work through adding mixed fractions by first converting each fraction to an improper fraction. This video details each necessary step, including how to reduce and convert your improper fraction back into a mixed fraction after you have...