Name:______________________________________________________________________________Date:_/_/________ Evaluate using the Order of Operations:

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Name:________________________________________________________________________________Date:_____/_____/__________ Evaluate using the Order of Operations: 3 (2 3 x 5 ÷ 4) - 2 1) 2(10 + 2) 2 2) 2( ) 3) ÷ 3 + (-3) 2 4) Be careful. This one is tricky... 2(8 + 2) ÷ 2( )

Teacher will pass out supplies/ give instructions...

Today’s Lesson: What: “evaluating algebraic expressions” Why: To evaluate algebraic expressions using the Order of Operations. What: “evaluating algebraic expressions” Why: To evaluate algebraic expressions using the Order of Operations.

What’s the difference?? math sentence that uses BOTH numbers and variables. Terms– parts of a math sentence separated only by an ______________________________ or subtraction sign. Numeric Expression— math sentence that uses ___________________ only! Algebraic Expression— math sentence that uses BOTH numbers AND ____________________________. numbers variables addition

3x + 8 _________ __________ Essential vocabulary... coefficient constant variable

Algebraic Expression Coefficient (s) Variable(s)Constant (s) 1) 3xy 2) 2x - y + 4 3) x + yz 4) 5x + 2y + 3 Fill-in chart: 3x and y 2 and -1x and y4 -2x, y, and z5 and 1 5 and 2 x and y 3

Evaluate the following when x = -2 and y = 4 1) ( x)² + 8 3) y + 20 ÷ (x) 2 Guided Examples

4) 4 + 2x + xy 5) 3 – x + (-6 – y)² -8 Evaluate the following when x = -2 and y = 4 CONTINUED

END OF LESSON The next slides are student copies of the notes for this lesson. These notes were handed out in class and filled-in as the lesson progressed. NOTE: The last slide(s) in any lesson slideshow represent the homework assigned for that day.

Term– part of a math sentence separated only by an ______________________________ or subtraction sign. Numeric Expression— math sentence that uses _________________________ only! Algebraic Expression— math sentence that uses BOTH numbers AND ___________________________. 3x + 8 __________ Math-7 NOTES DATE: ______/_______/_______ What: “evaluating algebraic expressions” Why: To evaluate algebraic expressions using the Order of Operations. What: “evaluating algebraic expressions” Why: To evaluate algebraic expressions using the Order of Operations. NAME: What’s the difference?? Essential vocabulary... Algebraic Expression Coefficient(s)Variable(s)Constant(s) 1)3xy 2)2x - y + 4 3)-2 + 5x + yz 4)5x + 2y + 3 Fill-in chart:

Evaluate the following when x = -2 and y = 4 1) ( x)² + 83) y + 20 ÷ (x) 2 4) 4 + 2x + xy5) 3 – x + (-6 – y)² Guided Examples...

Math-7 classwork NAME:______________________________________________________________________________ DATE: _____/_____/__________ “Evaluating Algebraic Expressions” 1) 2)3) 4)5)6) 7)8)9)

Math-7 HOmework NAME:______________________________________________________________________________ DATE: _____/_____/__________ “Evaluating Algebraic Expressions” x will be -5 for ALL of the following: