Arithmetic and Pre-Algebra Teacher Resources
Find Arithmetic and Pre Algebra educational ideas and activities
Showing 1 - 20 of 456 resources
Charley and Professor Perez show us how to add numbers in a variety of ways. They use a number line to show how the various methods work. This clip shows learners that there are multiple ways to solve any addition problem. Intended for older elementary learners in grades 4,5,6.
9 mins 4th - 6th Math 3 Views 1 Download
What is the Opposite, or Additive Inverse, of a Number?
Teach your class about the additive inverse! Using examples first and a definition second, this video explains what the additive inverse it and how to find the additive inverse of any given number or variable. A quick concept review for whole class or individual use.
4 mins 7th - 9th Math 3 Views 4 Downloads
Picture Frames and Algebra
Students evaluate the area of a picture frame and write algebraic representations. In this algebra instructional activity, students work in groups to find the area of different picture frames. Students then write algebraic expressions and present then to the class.
8th - 9th Math 25 Views 48 Downloads
Associative Law of Addition
The associative law of addition was confusing for my students, but it is totally necessary for understanding order of operations in later mathematics. In this video, Sal uses the associative law of addition to write the expression (77+2) +3 in a different way.
2 mins 5th - 7th Math 3 Views 10 Downloads
Commutative Law of Addition
Sal explains the commutative law of addition. He adds the number 5+8+5 three different ways. Then he shows that when he adds 5+8+5 in any order the answer will be the same. Note: This video is great, but would be nicely accented with class discussion and class-worked examples.
2 mins 2nd - 4th Math 3 Views 14 Downloads
Adding & Subtracting Fractions and Mixed Numbers
In this pre-algebra addition and subtraction of fractions and mixed numbers learning exercise, students add or subtract fractions in the first 10 problems. They write the answers in simplest terms. They add or subtract mixed numbers in the last 10 problems.
7th - 9th Math 17 Views 50 Downloads
Let Algebra Tiles Solve Equations for You
Students practice solving algebra equations utilizing model tiles. In this algebra lesson, students observe a clip from the movie Homeward Bound and break the action down into an algebraic equation. Students solve an algebra problem worksheet using model tiles with their classmates.
9th - 12th Math 3 Views 41 Downloads
What's the Addition Property of Inequality?
The addition property of inequality is just like the addition property of equality. They each state that whatever is added to one side of the equation or inequality must be added to the other side. Watch this video and see how the instruction shows you what this means in an inequality expression.
1 min 6th - 9th Math 3 Views 1 Download
How Do You Solve a Decimal Inequality Using Addition?
In order to solve this inequality use the addition property of inequality to isolate the variable. Don't forget that these are decimal numbers. So be sure to line up the decimals according to the rules of adding decimals.
3 mins 8th - 9th Math 3 Views 0 Downloads
How Do You Solve an Equation With Fractions With The Same Denominators Using Addition?
You have an equation with an unknown variable and fractions. How do you solve this kind of equation? You can do it using the addition property of equality to first isolate the variable. Then, combine the fractions and since they have a common denominator, you just add the numerators.
4 mins 8th - 11th Math 3 Views 0 Downloads
How Do You Find the Additive Inverse of a Polynomial?
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 ask, just watch this video and see.
4 mins 8th - 9th Math 3 Views 0 Downloads
Picture Frames and Algebra
Middle schoolers create a method for finding the area of a fame for a picture and then transfer their shared methods into algebraic expressions. They develop the algebraic language to communicate and solve problems effectively and use variables and symbols to write equations.
6th - 8th Math 12 Views 341 Downloads CCSS: Adaptable
What are Inverse Operations?
Explore inverse operations. Video viewers watch as a teacher shows how to "undo" an operation by using the opposite operation. By the end, learners should grasp that addition is the opposite of subtraction and division is the opposite of multiplication.
4 mins 6th - 12th Math 8 Views 11 Downloads
Algebra...Your Second Language
Help learners translate word problems into algebraic equations. They will rewrite words using symbols and evaluate algebraic expressions using real life scenarios, animation sequences, video presentations, and activities to help learners engage in learning.
9th - 11th Math 40 Views 270 Downloads