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Math 8/30/2010-9/3/2010 Understand place value from hundredths to one million Model and explain multiplication and division of decimals Multiply and divide decimals Understand the rules for multiplication and division of decimals Use formulas to represent the relationship between quantities Use variables for unknown quantities

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Monday 8/30/2010 M5N2 b. Analyze the effect on the product when a number is multiplied by 10, 100, 1000, 0.1, and 0.01. Try this….Task: Cut these strips out.

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Performance Task

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All of these Symbols mean to MULTIPLY: ×. * 7(5) =7x5

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Preview of Multiplication Modeling

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Problem Solving: Your ticket out of the door Read the problem. What is your strategy? What operation(s) will you use to solve the problem? Write your answer and explain it. HOMEWORK: Homework book: Lesson 13.5: 1-8 Study your 8s (Jingle Bells)

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Tuesday 8-31-10 Model multiplication and division of decimals. Explain the process of multiplication and division, including situations in which the multiplier and divisor are both whole numbers and decimals. Multiply and divide with decimals including decimals less than one and greater than one. Understand the relationships and rules for multiplication and division of whole numbers also apply to decimals Dividend: A number that is divided by another number. Divisor: A number by which another number is to be divided. Quotient: A number that is the result of division (without remainders)

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All of these symbols mean to DIVIDE All fractions are division problems. The top number is divided by the bottom number. This is also how we find a percent. Here is the house where we divide. ÷ 45÷5 means: 5 45

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How do I Divide? www.coolmath4kids.com/lo ng-division/long-division- lesson-1.html www.coolmath4kids.com/lo ng-division/long-division- lesson-1.html www.mrnussbaum.com www.mrnussbaum.com Turn your paper so the columns are vertical (up and down). Divide Multiply Subtract Bring Down Compare Practice with a partner: lessons 4.2, 4.5, 5.2

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Problem Solving: Your ticket out of the door Read the problem. What is your strategy? What operation(s) will you use to solve the problem? Write your answer and explain it. Homework: Lesson 4.2

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Wednesday 9-1-10 Dividing Decimals Performance Task Lesson 14.1 You need a flat (hundred block); longs (tenths blocks), and units (hundredths blocks) MODELING DIVISION How many tenths are in your hundreds block? Place the longs on the block. Count the longs. How many groups of.2 are in your flat? How many groups of.3 are in your flat? How many groups of.4 are in two flats? How many groups of.5 are in two flats?

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Do this task on graph paper: More modeling:

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What do I do with the decimals? Watch the show! www.mathsisfun.com/number s/decimals-dividing- animation.html www.mathsisfun.com/number s/decimals-dividing- animation.html www.eduplace.com/math/hm m/models/tm_5.htm www.eduplace.com/math/hm m/models/tm_5.htm Use a skittle to move your decimal on your sheet. Write the rules in your math journal. Practice:

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What is the point? Work with a partner to complete tasks 1-3.

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Problem Solving: Your ticket out of the door Read the problem. What is your strategy? What operation(s) will you use to solve the problem? Write your answer and explain it. What are the KEY WORDS? Homework: Lesson 14.1 (1- 8) Just divide. No models or estimation

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Thursday 9-2-2010

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What is missing?

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Magic Triangles Create a triangle for each equation. The biggest number goes on the top vertex. C 27 9 ÷÷ × R + 99 R-9=9 27÷C=9 The biggest number in a division or subtraction problem is the first one in the equation.

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Small group practice and homework: Work with a partner to practice solving equations. Lesson 4.7 in your math book Use alphabets to represent the variable in the problems Homework: Lesson 4.7 You must create a magic Triangle for each equation. Yes, even the word problems.

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Problem Solving: Your ticket out of the door Read the problem. What is your strategy? What operation(s) will you use to solve the problem? Write your answer and explain it. What are the KEY WORDS?

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Friday 9-3-2010 Quick Draw: Multiply decimals Divide whole numbers Divide decimals Equations FORMATIVE on above skills Lesson 5.6 Order of Operations Create anagrams with PEMDAS

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P.E.M.D.A.S

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P.E.M.D.A.S.

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Problem Solving: Your ticket out of the door Read the problem. What is your strategy? What operation(s) will you use to solve the problem? Write your answer and explain it. What are the KEY WORDS?

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