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Instructional Video4:54
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Virtual Nerd

How Was the Distance Formula Derived?

For Teachers 6th - 12th
Are you working on the distance formula? Derive the distance formula and help your learners by showing them the logic behind the distance formula. This practical video should help conceptual understanding and is appropriate for in-class...
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Instructional Video7:09
Curated OER

What is the Domain of a Relation?

For Students 6th - 12th
The teacher illustrates several ways to look at what the domain is in a set of numbers. Input, output, table, graphs, and diagrams are a few of the ways in which she illustrates the meaning of domain.
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Instructional Video7:59
Curated OER

How Do You Solve an Equation With Fractions With Different Denominators Using Subtraction?

For Teachers 6th - 12th
A detailed video tutorial on how to solve an equation with fractions with different denominators, this resource could prove to be a valuable tool. This video covers how to deal with fractions as well as how to solve an algebraic equation...
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Instructional Video5:42
Curated OER

How Do You Solve a Decimal Inequality Using Division?

For Teachers 6th - 12th
Divide decimals to solve this inequality! Learners can watch the instructor in this thorough video as she works through an inequality that contains decimals. This resource is appropriate for teaching, reinforcing, or reviewing the concept.
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Instructional Video6:27
Curated OER

How Do You Solve a Word Problem Using the Elimination by Subtraction Method?

For Teachers 8th - 11th
Use word problems to teach systems of equations! The instructor in this video demonstrates how to solve a word problem using a system of equations and the elimination by subtraction method. She goes through each step, carefully...
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Instructional Video4:15
Krista King Math

Evaluating Expressions

For Students 9th - 12th Standards
Viewers examine the steps of evaluating expressions by substituting variable values with a video that shows two examples that include parentheses within the expressions. Each example incorporates negative integer practice.
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Instructional Video12:51
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3Blue1Brown

Change of Basis | Essence of Linear Algebra, Chapter 9

For Students 11th - Higher Ed Standards
It is all about perspective. A video introduces the idea that the view of a vector all depends upon the perspective of the basis vectors. Knowing how to go from one coordinate system's basis vectors to another system's basis vectors...
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Instructional Video6:21
Khan Academy

Scientific Notation 3

For Students 7th - 9th Standards
Sal uses a TI-85 graphing calculator to demonstrate how to check his work while he solves a complex word problem where he must use scientific notation to express his answer. This would be a very useful video for an SAT prep or cumulative...
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Instructional Video6:59
Virtual Nerd

What is the Range of a Relation?

For Students 6th - 12th
The teacher illustrates several ways to look at what the range is in a set of numbers. Input, output, stem and plot table, graphs, and diagrams are a few of the ways in which she illustrates the meaning of range.
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Instructional Video7:16
Curated OER

How Do You Solve an Equation With Fractions With Different Denominators Using Subtraction?

For Teachers 7th - 9th
A detailed video tutorial on how to solve an equation with fractions with different denominators, this resource could prove to be a valuable tool. This video covers how to deal with fractions as well as how to solve an algebraic equation...
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Instructional Video5:07
Curated OER

How Do You Solve a Decimal Inequality Using Division?

For Teachers 6th - 9th
Divide decimals to solve this inequality! Learners can watch the instructor in this thorough video as she works through an inequality that contains decimals. This resource is appropriate for teaching, reinforcing, or reviewing the concept.
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Instructional Video2:33
Curated OER

How Do You Add and Subtract a Bunch of Numbers with Different Signs?

For Teachers 6th - 12th
So you have an expression of positive and negative numbers and you want to add and subtract them. Do you do the operations in order that they are written? Do you combine some? Do you move them around? Do you change their signs? The...
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Instructional Video1:41
Curated OER

How Do You Solve an Equation Using Multiplication?

For Teachers 6th - 9th
The teacher demonstrates how to use the multiplication property of equality, applying it to both sides of the equation to find the solution.
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Instructional Video2:20
Curated OER

How Do You Solve an Equation Using Division?

For Teachers 6th - 9th
The teacher demonstrates how to use the division property of equality, applying it to both sides of the equation to find the solution.
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Instructional Video4:51
Curated OER

How Do You Factor a Polynomial Using Sum of Cubes?

For Teachers 8th - 11th
Factor a binomial using the sum of cubes method. The strategy here is to rewrite each of the expressions in the binomial as a term cubed. That's just two steps. Ok. Wait! There is a formula that is used to finish factoring the binomial....
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Instructional Video2:35
Curated OER

How Do You Use Multiplication with Negative Numbers to Solve an Inequality Word Problem?

For Teachers 6th - 9th
Solve this real world word problem in just one written step. The original inequality is a division problem, so to solve it, use the multiplication property of inequality. Was the problem solved by multiplying a negative number? Yes! So...
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Instructional Video3:10
Curated OER

How Do You Use Multiplication With Positive Numbers to Solve an Inequality Problem?

For Teachers 6th - 9th
Broken lights at the skating rink? Are there enough not broken to be able to see well enough to skate? Set up this real-world word problem and find the total number of lights in the skating rink. Two given values and one variable. Solve...
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Instructional Video2:33
Curated OER

How Do You Solve an Inequality Where You're Multiplying Positive Fractions?

For Teachers 6th - 12th
Provide this video as additional instruction on how to solve inequalities when you need to multiply positive fractions. The focus of this video is on how to use the multiplication property of inequalities correctly. The lecturer explains...
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Instructional Video0:02
Curated OER

How Do You Solve an Inequality Where You're Multiplying Positive Fractions?

For Teachers 6th - 9th
Provide this video as additional instruction on how to solve inequalities when you need to multiply positive fractions. The focus of this video is on how to use the multiplication property of inequalities correctly. The lecturer explains...
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Instructional Video2:30
Curated OER

What's the Multiplication Property of Inequality?

For Teachers 6th - 9th
Applying the multiplication property of inequality is just like working with linear equations. What is done on one side of the equation needs to be done on the other side of the equation. So this rule can be applied to inequalities. In...
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Instructional Video2:25
Curated OER

How Do You Use Division With Negative Numbers to Solve an Inequality Word Problem?

For Teachers 6th - 9th
A word problem that needs to be written as an inequality to solve. This expression seems pretty straightforward and only takes one step to solve. But wait, the division property was used with a negative number so the inequality sign has...
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Instructional Video3:24
Curated OER

How Do You Find a Rational Number Between Two Fractions?

For Teachers 8th - 9th
So do you really want to know how to find a rational number between two given fractions? The teacher explains how to average the two fractions to find a rational number between the two fractions. There are several steps involved in...
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Instructional Video2:43
Curated OER

How Do You Solve a Word Problem Using an Inequality Where You're Multiplying Negative Fractions?

For Teachers 6th - 9th
It just doesn't seem right to lose points when answer a question incorrectly. Well, that's what this word problem is all about. So calculate how many incorrect answers the team gave. Don't forget to flip the inequality when dealing with...
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Instructional Video2:48
Curated OER

How Do You Solve a Word Problem Using an Inequality Where You're Multiplying Positive Fractions?

For Teachers 6th - 9th
Ingrid got some good advice from her father about building a bridge out of pasta. Now she has to do some calculations to build a strong pasta bridge. Figure out how tall she can build her bridge based on a given length. Two given values...

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