CLASSWORK Lesson 2 Issued: 2/6/18 Key Vocabulary:

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Presentation transcript:

CLASSWORK Lesson 2 Issued: 2/6/18 Key Vocabulary: CCSS 8.EE.7 Students solve one-variable equations including those with the variables being on both sides of the equals sign. Students recognize that the solution to the equation is the value(s) of the variable, which make a true equality when substituted back into the equation. Equations shall include rational numbers, distributive property and combining like terms. Key Vocabulary: Expressions, Equations, Terms, Coefficients, Like Terms, Constant, Variable, Power, Distributive Property

Discussion: How many items were purchased? What types of items were purchased? Which items can be grouped together? There were a total of ____ items that were purchased. There were _____ different type of items purchased. Cheeseburgers, Drinks, and Fries can be grouped by type.

Discussion: How many can you turn this picture into an algebraic expression? Can items be distributed (moved elsewhere) without changing the meaning of the picture? Identify each item and assign a variable to represent it. You can distribute / regroup the items without changing their meaning.

Name of item purchased: FRIES CHEESEBURGER DRINK Assign a variable: f c d

Write an algebraic expression for the picture above: 2 1 1 3 2 2 c + f + d + c + f + d

Re-distribute and write a simplified algebraic expression for the picture above: 5 3 3 c + d + f

3 6 6 p + t + d ab+ac ab-ac inside the outside of sign Draw a picture below of what this will look like: 3 6 6 p + t + d

4 (2x) + 4 (3) 4 (2x) - 4 (3) Simplified: (8x) + (12) Simplified: (8x) - (12) [-4 (2x)] + [-4 (3)] [-4 (2x)] - [-4 (3)] Simplified: (-8x) + (-12) Simplified: (-8x) - (-12)

-32y + 40 37.5 + 25w 3m + 5 2f + 8 + f 3/4x + 18 – 2/4x  3f + 8  1/4x + 18 -32.5c + (-55) - 20 13 – (1g + 1.5)  32.5f + (-75)  -1g + 11.5

Area = 39.6x + 26.4 13.2 (3x + 2) Area = L x W Area = L x W Multiply using the Distributive Property Multiply using the Distributive Property 13.2 (3x + 2) Step 1: (13.2)(3x) Step 2: (13.2)(2) Step 3: Add together Area = 39.6x + 26.4