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Laabri

Algebra 2 1-3 Complete Lesson: Algebraic Expressions

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Last updated over 4 years ago
23 Nsɛmmisa
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A complete formative lesson with embedded slideshow, mini lecture screencasts, checks for understanding, practice items, mixed review, and reflection. I create these assignments to supplement each lesson of Pearson's Common Core Edition Algebra 1, Algebra 2, and Geometry courses. See also mathquest.net and twitter.com/mathquestEDU.

To model a situation with an algebraic expression, do the following:

1. Relate the given information.

2. Define variables.

3. Write an expression.

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Solve It! During summer vacation, you work two jobs. You walk three dogs several times a week, and you work part time as a receptionist at a hair studio. You earn $8 per hour as a receptionist and $20 per week per dog. Your weekly schedule (shown here) is the same each week. How much will you earn in 10 weeks?

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Problem 1 Got It?

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Problem 2 Got It?

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Problem 3 Got It? What is the value of the expression below for x = 6 and y = -3?

Enter only a number.

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Problem 4 Got It?

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Problem 5 Got It?

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Problem 5 Got It?

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Error Analysis: A student simplified the expression as shown in the canvas. Identify the errors and correct them.

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Compare and Contrast: How are algebraic expressions and numerical expressions alike? How are they different? Include examples to justify your reasoning.

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Review Lesson 1-2: Sort the numbers from least to greatest.

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Review Lesson 1-2: Sort the numbers from least to greatest.

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Review Lesson 1-3: Simplify the expression.

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Review Lesson 1-3: Simplify the expression.

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Key Concept: Properties for simplifying algebraic expressions.

Match each property with the algebraic example of the property. Each example is used exactly once.

  • Distributive Property of Subtraction

  • Multiplication by 0

  • Multiplication by -1

  • Opposite of a Sum

  • Opposite of a Difference

  • Opposite of an Opposite

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Notes: Take a clear picture or screenshot of your Cornell notes for this lesson. Upload it to the canvas. Zoom and pan as needed.

For a refresher on the Cornell note-taking system, click here.

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Reflection: Math Success