Math Playground
What is Prime Factorization?
A teacher describes how to find the prime factors of 525. She starts by describing how to use a factor tree to describe the factors of a number. Next, she uses increasingly difficult examples to illustrate this concept.
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How Do You Solve a Ratio Word Problem?
Review how to calculate ratios using this film. The instructor works through word problems involving a ratio. This is a wonderful way to make ratios easier to understand.
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Convert Fractions/Decimals to Percents
In this easy-to-understand video, an instructor shows how to convert fractions to decimals, decimals to percentages, and fractions to percentages. After watching this film, the conversion process should be easier for your learners to grasp.
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How Do You Find GCF and LCM?
Using the numbers 225 and 270, the narrator explains how to find the greatest common factor and the least common multiple. This presentation could be used in conjunction with other videos in a series exploring how to identify prime...
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What is a Ratio?
Explore the concept of ratios with this film. Using pennies and nickels, an instructor shows how to describe a ratio. However, I think the use of money might be a bit confusing. Prior to showing this video, you may want to clarify that...
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What are equal ratios?
Using a visual means, this video explores comparing ratios. This is a terrific way to approach the topic since it is a difficult concept for learners to understand. It is worth showing to the whole class, every mathematician can benefit...
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What is a Prime Number?
Review the characteristics of prime numbers. The narrator begins by defining factors and then goes on to explore the definition of prime numbers. This is a quick and easy way to review prime numbers.
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How Do You Do Long Division?
Using a visual means, this film explores the procedure for long division problems. The first example involves dividing 56 by 4. In the film, the numbers are described as tens and ones, and the narrator of the video manipulates the...
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How Do you Divide Fractions?
The concept of dividing fractions is explored in this video. The instructor answers the question of whether or not one always has to invert fractions when multiplying. The answer is no, and she goes on to explain when one has to invert...
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What is PEMDAS?
Learning how to solve problems using the order of operations can be challenging. This video explores the how's and why's for the order of operations. This is a must-see video for middle school learners.
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Math Playground: What Is a Prime Number?
This video defines prime numbers by examining the concept of factors. [4:42]
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Math Playground: How Do You Divide Decimals?
This video illustrates how to divide decimals. [4:10]
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Math Playground: Divisibility Rules
This video illustrates the divisibility rules for factors 2, 3, 4, 5, 6, 8, 9 and 10.
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Math Playground: How Do You Round Numbers?
This video illustrates how to round numbers to the nearest place value.
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Math Playground: How Do You Find the Gcf and Lcm?
This video illustrates how to find the greatest common factor (GCF) and the least common multiple (LCM) of two numbers.
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Math Playground: How Do I Learn My Times Tables?
This video illustrates how to learn the multiplication table.
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Math Playground: How Do I Do Long Division?
This video illustrates how to perform long division. [4:16]
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Math Playground: How Do You Subtract by Regrouping?
This video illustrates how to perform subtraction by regrouping (or borrowing).
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Math Playground: What Is Pemdas?
This video explains the acronym PEMDAS and how it relates to the order of operations when solving an equation.
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Math Playground: Adding Fractions With Different Denominators
This video illustrates how to add fractions that have different denominators.
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Math Playground: How Do You Reduce Fractions?
This video illustrates how to reduce or simplify a fraction.
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Math Playground: How Do You Change Fractions Into Decimals?
This video illustrates how to convert a fraction to its decimal equivalent.
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Math Playground: Dividing Fractions Do You Always Have to Invert and Multiply?
This video illustrates how to divide fractions. The instructor emphasizes that you do not always have to invert and multiply when dividing fractions.
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Math Playground: How Do You Multiply Decimals?
This video illustrates how to multiply numbers with digits to the right of the decimal point.