Videos tagged “distributive property”

Algebra: Expressions Lesson 9  Distributive Property Example 1
02:21In this video, we learn about the distributive property, and how to apply a number that is multiplying a group of terms inside a parentheses. With the distributive property, we see that the number multiplying the group in parentheses can be rewritten to show that it multiplies each term inside the parentheses. This allows us to rewrite the expression without the parentheses, which adds to our ability to rewrite and simplify Algebraic expressions.
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Algebra: Expressions Lesson 7  Defining Like Terms Part 2
03:45In this video, we continue to develop our understanding of like terms in Algebra by using the distributive property to show why we consider some terms like, and others not. Since like terms have the same variable factors, then we can factor out the same factors from each term using the distributive property, which then allows us to add the coefficients together. We also look at an example of showing how 3 + 5x is not the same as 8x, by substituting a value in for x and seeing they are not the same. This is a good way to check that you are working with expressions correctly.
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Algebra: Expressions Lesson 13  Simplifying Expressions Example 2
02:49In this video, we look at another example of simplifying an Algebraic expression. Our first step is to remove parentheses by using the distributive property. After that, all the terms are no long separated into groups, and we can look for like terms to add together. In this particular example, we have two groups of parentheses to distribute, and we have to be careful with the subtraction sign in front of one of the parentheses.
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Algebra: Expressions Lesson 12  Simplifying Expressions Example 1
02:39In this video, we put together the skills of adding and subtracting like terms, with the distributive property to simplify a more complex Algebraic expression. The first step we always do in simplifying an expression is to use the distributive property to remove the parentheses. Once the parentheses are removed, all the terms are wide open, and we can look for like terms to combine. Once done, we have an equivalent expression that is simpler and much nicer to work with.
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Algebra: Expressions Lesson 11  Distributive Property Example 3
02:14In this video, we look at one more example of applying the distributive property to an Algebraic expression. In this example, there is only a negative sign in front of the parentheses. This can be confusing for students as they aren't sure what to multiply each term inside the parentheses by. In cases like these, we can think of it as a negative one in front of the parentheses, and then distributive the negative one to each term inside. Make sure to distribute the negative one to each term inside the parentheses, and be careful to change all the signs correctly.
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Algebra: Expressions Lesson 10  Distributive Property Example 2
02:38In this video, we continue to learn how to apply the distributive property to Algebraic expressions. We extend our understanding by looking at how to distribute a negative number into a group separated by a parentheses. When that happens, we still multiply each term by the negative number, but the negative will change the sign of each of the terms inside the parentheses. This is often a place where students make errors when simplifying and rewriting Algebraic expressions. Make sure to apply the negative to change the sign of all the terms inside the parentheses.
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07:26
We work through several problems in 7.1 Squares and Cubes, determing how many squares we need to create each expression in Algebra Tiles.
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When to use the Distributive Property
04:10Our notes in response to the excellent question: "When CAN I Distribute and when CAN'T I Distribute?"
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