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Instructional Video0:50
Curated OER

Multiplying Decimals

For Teachers 5th - 8th
See how easy it is to multiply decimals. This clip shows learners that when you multiply decimal numbers, you multiply the same as you would a whole number, then plug in the decimal point at the end.
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Instructional Video4:53
Curated OER

How Do You Multiply Decimals?

For Teachers 4th - 6th
Using examples like 4.2 multiplied by 5.9, an instructor shows how to find the answer to these types of problems. She starts by explaining that the key to these problems involves ignoring the decimal points until you've multiplied the...
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Instructional Video1:51
Curated OER

Dividing Decimals 2.1

For Students 5th - 7th
Occasionally, in mathematics, there are "short cuts" one can take. Sal explains a quick way to divide decimals numbers. He demonstrates that in certain cases, simply shifting the decimal point to the left will result in a correct answer.
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Instructional Video4:34
Curated OER

How Do You Multiply Decimals?

For Teachers 5th - 7th
Find the product of numbers that have decimals. First, ignore the decimals and multiply the integers. Second, count the place values of the decimals for each value given. Third, add the values together. Fourth, place the decimal in the...
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Instructional Video4:04
Curated OER

Multiplying Fractions and Mixed Numbers

For Students 5th - 7th
Here is a great video explaining how to multiply a fraction by a whole number. Sal shows students how to put a whole number over 1 in order to multiply it by a fraction. He simplifies his answer and writes it as a mixed number.
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Instructional Video4:07
Curated OER

How Do You Divide Decimals?

For Teachers 4th - 6th
Converting decimals to whole numbers is explained. An instructor shows how to multiply a decimal to convert it to a whole number. She then goes on to explain how to find the answer to a division problem involving decimals.
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Instructional Video2:18
1
1
Curated OER

How Do You Do Long Division with Decimals?

For Teachers 4th - 8th
Review some long division that contains a decimal number. Do the division first and when that is completed then figure out where the decimal goes in the answer. Just don't let those decimals make you crazy about doing the long division.
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Instructional Video5:09
Curated OER

How Do You Multiply Mixed Numbers?

For Teachers 4th - 8th
Multiply two mixed fractions. First, change them to improper fractions. Now, multiply the numerator times the numerator and the denominator times the denominator. Oh, that's a big number. Reduce it. Now, change it back into a mixed...
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Instructional Video1:16
Corbett Maths

Decimals to Percentages

For Students 5th - 8th Standards
Complete a quick conversion. Pupils view the short video to learn the process to convert a decimal to a percent. The scholars then practice the skill with two worksheets, giving them a chance to better understand the concept.
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Instructional Video4:35
Krista King Math

Decimal Arithmetic

For Students 3rd - 7th Standards
Teach the four operations with decimal numbers while focusing on the algorithms. The video instructor demonstrates one example each of adding, subtracting, multiplying, and dividing with decimal numbers. She explains the steps of each...
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Instructional Video6:13
1
1
Curated OER

How Do You Divide a Decimal by a Decimal?

For Teachers 4th - 7th
Many learners would look at this decimal division problem and just skip it. Don't let them do that! Figure out how to help your learners master long division. The teacher helps make decimals and long division seem doable.
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Instructional Video5:22
Curated OER

How Do You Figure Out Which of Two Fractions is Bigger?

For Teachers 2nd - 5th
Trying to decide which method to use to compare the value of two fractions? You could find a common denominator, you could turn them into decimals, or you could cross multiply. Let's cross multiply because we like to multiply more than...
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Instructional Video3:10
Curated OER

Estimating Surface Area

For Teachers 5th - 8th
Kids might enjoy this dramatic presentation on estimating surface area. The fake Transylvanian accent is a bit distracting but the problem solving practices are sound. Dr. Crazy Pants rounds his decimal measurements then multiplies...
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Instructional Video6:31
1
1
Math Antics

Comparing Fractions

For Students 3rd - 6th Standards
Comparing fractions, it is just not the same as comparing whole numbers. The video starts with fractions with common denominators and moves on to comparing fractions that are not as obvious. Scholars learn two techniques, cross...
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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 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 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 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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