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 241 - 264 of 285 resources
Multiplication: Building Models, Representations and Explanations
First graders explore multiplication concepts through skip counting, repeated addition and arrays. Using animal characteristics as a context, 1st graders solve problems using mathematical tools such as hundreds charts, number lines, ...
How Do You Subtract Integers Using a Number Line?
5 mins 1st - 4th
There are times when you might want to use a number line to help you visually understand what is happening mathematically. Subtracting integers might be one of those times. So take a look and see which direction you need to move on the...
How Do You Compare Integers Using a Number Line?
3 mins 2nd - 5th
Use a number line to plot the given points to compare their value. The given numbers in this problem are both negative so remember that whichever number is furthest to the right is the larger value. Watch this short video and see how to...
How Do You Subtract Mixed Fractions with Different Denominators by Converting to Improper Fractions?
6 mins 4th - 8th
The first step in subtracting mixed numbers is to change them into improper fractions. Second, make sure the denominators are the same. If they are not the same, then find a common denominator. Make the proper conversions to the...
How Do You Subtract Mixed Fractions with the Same Denominator?
5 mins 3rd - 5th
There are many ways to subtract mixed fractions. The teacher demonstrates one method of how to break up the mixed number and subtract the whole numbers apart from the fractions. Once that is complete she puts the whole number and...
Multiplying and Dividing Integers/Relay Race
6th - 8th CCSS: Adaptable
Give your class a list of multiplication and division sentences that contain both positive and negative integers. Have them analyze them to see if they can discover the pattern with the signs. From these patterns, help them develop the...