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Instructional Video7:32
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Math Antics

Finding a Percent of a Number

For Students 6th - 8th Standards
Use the knowledge of multiplying fractions to find a percent of a number. The video builds the process to find the percent of a number by recalling that the word of in fraction problems meant to multiply. Finding the percent of a number...
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Instructional Video5:06
Curated OER

How Do You Solve a Decimal Equation Using Multiplication?

For Teachers 8th - 9th
Solve this algebraic equation in one step by using the multiplication property of equality. Not sure what that property is? Then watch this video and see the instructor work out this problem. These are decimal numbers so make sure to use...
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Instructional Video5:39
Curated OER

How Do You Turn a Percent Into a Fraction?

For Teachers 6th - 8th
Change decimals to percent, fractions to decimals, percentages to fractions, etc. Remember how to do all of these conversions? It gets so confusing. Move the decimal to the right? Make it a fraction over 100? Multiply by? Oh my! So watch...
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Instructional Video3:03
Curated OER

How Do You Solve a Decimal Inequality Using Subtraction?

For Teachers 6th - 8th
Isolate the variable to solve any equation. This equation happens to be an inequality but is solved no different than if it were just an equation. Use the subtraction property of inequality to solve this given problem. The numbers are...
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Instructional Video2:15
Corbett Maths

Multiplication by Powers of Ten

For Students 5th - 8th Standards
Multiplying by powers of 10 is a powerful skill. Scholars first review how to determine values of powers of 10. They then learn how to multiply whole numbers and decimals by powers of 10 to finish the instructional video.
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Instructional Video7:06
Corbett Maths

Multiplication by 10, 100 and 1000

For Students 3rd - 5th Standards
Make multiplication seem 10 times simpler. Viewers of a short educational video see how to multiply values by 10, 100, and 1,000 by moving the decimal point. Examples in the video cover both whole numbers and decimals.
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Instructional Video14:35
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Socratica

Using Scientific Notation

For Students 8th - Higher Ed Standards
Scientists and engineers in every field use scientific notation. The Socratica video explains what scientific notation is and why people use it. Then, it offers examples of how to convert a number into and out of scientific notation....
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Instructional Video2:08
Khan Academy

Dividing whole numbers and fractions: t-shirts

For Students 5th - 7th Standards
There is no better way to present a math problem than within the context of a story. Sal explains how he divides a fraction to solve a word problem where he must determine how many shirts can be made with 48 yards of fabric. Problems...
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Instructional Video1:15
Khan Academy

Understanding Exponents 2

For Students 5th - 7th Standards
Explain an exponential number. Sal shows that 5 to the 3rd power is 5x5x5 while 5x3 is 5+5+5. He demonstrates that they have very different answers. Note: This is part 2 in a set of videos on exponents. It may serve students best if this...
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Instructional Video1:55
Khan Academy

Exponent example 2

For Students 5th - 7th Standards
Many young mathematicians get slightly confused when they are introduced to the concept of exponents. This resource will ensure that they never get confused again. Sal explains, quite emphatically, that 6 to the 8th power is NOT the same...
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Instructional Video9:56
Curated OER

Taking Percentages

For Students 6th - 9th
There are two percentage concepts covered in an informative video. The first is how to find a given percent of a given number; the second concept shows learners how to find a number when the percent is given. Sal finishes by...
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Instructional Video2:23
Curated OER

Solving One-Step Equations 2

For Students 4th - 6th
Help your students understand how to use their algebraic reasoning to solve a one-step equation, where they must solve for X. Add this video to a lesson or assign it as homework.
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Instructional Video13:50
Curated OER

Two-Step Equations

For Students 7th - 11th
Sal adds a few more steps to these problems as he solves algebraic equations with two steps - though he states that "there's more than one way to do it." Those who become confused by increasingly complicated algebra problems on a test...
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Instructional Video4:01
Curated OER

How Do You Find a Rational Number Between Two Fractions?

For Teachers 6th - 12th
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 Video4:34
Curated OER

How Do You Solve a Word Problem That Compares Two Fractions?

For Teachers 6th - 8th
Who made more money in the stock market, Brad or Ariel? Brad's stock went up, but Ariel's stock fluctuated up and down. Set up an inequality to solve this one. Ariel will have several terms as her stock fluctuated and Brad has a single...
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Instructional Video4:22
Curated OER

How Do You Find a Missing Angle in a Triangle?

For Teachers 6th - 10th
The interior angles of any and ALL triangles adds up to 180 degrees. So if given two of the angle degrees, is it possible to find the value of the third angle? Yes! Use the triangle sum theorem to solve for the missing angle. Watch this...
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Instructional Video5:16
Krista King Math

How to Write Small and Big Numbers in Scientific Notation

For Students 3rd - 7th
Now you don't have to write all those zeros. Viewers of this video learn how to write large and small numbers in scientific notation. The video covers two examples for each type.
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Instructional Video
Khan Academy

Khan Academy: Developing Strategies for Multiplying Decimals

For Students 5th Standards
Sal uses place value and equivalent fractions to multiply decimals.
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Instructional Video
Sophia Learning

Sophia: Multiplying Decimals by Fractions: Lesson 7

For Students 7th - 8th
In this lesson, students see how to solve a multiplication problem that contains a fraction and a decimal. It is 7 of 11 in the series titled "Multiplying Decimals by Fractions."
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Instructional Video
Sophia Learning

Sophia: Multiplying Decimals by Fractions: Lesson 8

For Students 7th - 8th
In this lesson, students see how to solve a multiplication problem that contains a fraction and a decimal. It is 8 of 11 in the series titled "Multiplying Decimals by Fractions."
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Instructional Video
Sophia Learning

Sophia: Multiplying Decimals by Fractions: Lesson 1

For Students 7th - 8th
In this lesson, students see how to solve a multiplication problem that contains a fraction and a decimal. It is 1 of 11 in the series titled "Multiplying Decimals by Fractions."
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Instructional Video
Sophia Learning

Sophia: Multiplying Decimals by Fractions: Lesson 5

For Students 7th - 8th
In this lesson, students see how to solve a multiplication problem that contains a fraction and a decimal. It is 5 of 11 in the series titled "Multiplying Decimals by Fractions."
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Instructional Video
Homeschool Math

Homeschool Math: Multiplying Decimals by Decimals

For Students 5th Standards
A complete lesson about multiplying decimals by decimals. Video explains the rule for multiplying decimals with examples and practice exercises. [6:16]
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Instructional Video
Math Mammoth

Math Mammoth: Multiplying Decimals by Decimals: The Shortcut

For Students 4th - 6th Standards
Demonstrates a shortcut strategy for multiplying decimals by decimals. [6:45]

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