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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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Lesson Plan
Curated OER

Fractions Forever!

For Teachers 5th - 8th
Middle schoolers identify proper, improper fractions, and mixed numbers.  They reduce fractions to their lowest terms. They add and subtract fractions with different denominators, and multiply and divide fractions, as well as decimal...
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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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Lesson Plan
EngageNY

Grade 5 Math Module 1, Topic E, Lesson 11

For Teachers 5th Standards
Let your understanding of multiplying decimals flourish and multiply. After briefly reviewing place value concepts and how to add and subtract decimals, scholars learn to multiply a decimal fraction (like 0.6) by a whole number. They use...
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Lesson Plan
Curated OER

Multiplying Whole Numbers and Decimals

For Teachers 4th - 7th
Upper elementary and middle school learners explore number sense by completing a list of multiplication problems in class. Learners discuss the difference between whole numbers and decimals while solving multiplication problems. They...
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Lesson Plan
Curated OER

Operations with Positive Fractions and Decimals

For Teachers 5th - 8th
Explore the concept of fractions and decimals! In this fractions and decimals lesson, pupils use fraction tiles to express fractions. They play a fraction review basketball game where when a team gets a question correct they get to shoot...
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Lesson Plan
Curated OER

Division of Decimals

For Teachers 4th - 6th
Work with the class to investigate the concept of dividing decimals. They will use a variety of problem-solving skills in order to practice the operation of division. The teacher can use the dialogue to guide learners through the various...
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Lesson Plan
Illustrative Mathematics

Gifts from Grandma, Variation 3

For Teachers 5th - 7th Standards
There are three money word problems in this activity, each one is set in the same context. The first asks what was the total amount grandma spent, the second how many grandchildren grandma has, and the third asks how much grandma spent...
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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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Lesson Plan
Illustrative Mathematics

Half of a Recipe

For Teachers 4th - 6th Standards
Kids love to cook! What is a better place to learn mixed numbers than with a recipe? It is up to learners to decide how they want to divide this recipe in half. They may choose to model the mixed number and then divide the model by two....
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Lesson Plan
Curated OER

Problem Solvers

For Teachers 5th - 6th
Fifth and sixth graders compare decimals to the place-value structure in the base-ten number system. They represent fractions as parts of unit wholes, as parts of a set, as locations on a number line, and as divisions of whole numbers....
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Lesson Plan
1
1
Illustrative Mathematics

Margie Buys Apples

For Teachers 3rd - 5th Standards
One of the most common, everyday applications of math is dealing with money. This single problem calculating how much change Margie receives is more involved than it appears at first glance. An understanding of how fractions and decimals...
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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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Lesson Plan
EngageNY

Grade 5 Math Module 1, Topic F, Lesson 16

For Teachers 5th Standards
See, decimal operations do come in handy! Pupils solve word problems that require adding, subtracting, multiplying, and dividing decimals. They use tape diagrams to express relationships and to identify the necessary operations to solve...
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Lesson Plan
EngageNY

Grade 5 Math Module 1, Topic E, Lesson 12

For Teachers 5th Standards
Continuing from the previous instructional activity, scholars work on mastering the skill of multiplying decimal fractions by a whole number. The method employed in the instructional activity is to convert the decimal fraction to its...
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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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Lesson Plan
Curated OER

Multiplication and Division Word Problems Made Easy

For Teachers 4th - 6th
Marbles to learn math? What fun! Discuss the rules of multiplication and division when applied to whole numbers, decimals, and fractions. Small groups use6 marbles to design different types of multiplication and division problems, and...
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Lesson Plan
Curated OER

Number Operations

For Teachers 3rd - 4th
Inject fun into your math review! Pupils review basic math operations with decimals as well as addition and subtraction with simple fractions. For this number operations lesson, learners work in groups to create a game for the math skill...

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