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Published byAngelina Garza Modified over 3 years ago

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If...Then? Today I can construct function tables with if...then statements using simple equations.

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Essential Questions What is mathematical reasoning? How does it relate to if...then statements? What is an algebraic function? What are the rules of computation?

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Think...what operations do we use in math? List as many as you can on your whiteboard. Share with your face partner. Discuss as a class. For starters....

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I have a PS3 and have 12 games next to the machine. If I had 20 games total then how many am I missing? What operation is this problem? How did you come to that conclusion?

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Vocabulary Mathematical reasoning: Thinking through math problems logically in order to arrive at solutions. Algebraic function: A function involving addition, subtraction, multiplication, and/or division to solve a problem such as finding what X is.

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Order of Operations Parenthesis Exponents Multiplication Division Addition Subtraction Please Excuse My Dear Aunt Sally!

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Mathematical Symbols Multiplication: x ( ) Division: ÷ / 4x3 or 4(3) or ÷5 or 30/5..

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Lets try a few using PEMDAS! 2(3) + 4(7) = 2(3+2) = 30/5 - 4(1) =

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Now on your own... (3+11) + (34-16) = 7(8) - 54 = 144/ = Dont forget PEMDAS!

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If...then statements 4 x A = B If...A = 5 then...B = ? 4 x 5 = ?

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Try one! 25 + X = Y If... X = 13 then...Y =? = 38 Y = 38

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Function Tables XY X=Y If I were to continue this table...using mathematical reasoning...what would come next? How did you come to that conclusion? If X is 2...then Y is...

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Lets try one together! XY 3X+6=Y Dont forget PEMDAS!

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On your own complete the function table.AB (A+3)2=B Dont forget PEMDAS!

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Closure What are the rules for computation? (Order of Operations) How do if...then statements help me to complete a function table? Share...in your table groups share your summary. Share...with me!

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