Elementary Algebra Review Part 12
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Lesson Summary:
In this lesson, the Distributive Property is used to simplify expressions and word phrases are written as algebraic expressions. By identifying like terms and distributing values, students learn to simplify expressions such as 5 times the sum of 4 times the number and 1. Additionally, the lesson covers how to write expressions from word phrases, such as 3 less than twice the difference of a number and 5. Through these techniques, students develop foundational skills that will be built upon in future algebra lessons.
Lesson Description:
Distributive property with polynomials, writing word phrases as algebraic expressions
More free YouTube videos by Julie Harland are organized at http://yourmathgal.com
Questions answered by this video:
- How can you use the distributive property to write variable expressions without parentheses?
- How can you use the distributive property to simplify 4(x + 3) - (3x + 7)?
- How can you use the distributive property to simplify 5(x - 7) + 3(4x + 6)?
- How can you use the distributive property to simplify 3(x - 10) - 6x?
- How can you use the distributive property to simplify -4(2x - 5) - 5(3x - 7)?
- How do you write word phrases as algebraic expressions?
- What is five times the sum of four times a number and one as an algebraic expression?
- What is three less than twice the difference of a number and five as an algebraic expression?
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Staff Review
This video explains some concepts that can be quite confusing to Algebra students -- simplifying variable expressions by distributing, and writing word phrases as algebraic expressions. This is a great way to learn how to take a phrase and write it using numbers and variables.
