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Chapter 2 Fractions.

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Presentation on theme: "Chapter 2 Fractions."— Presentation transcript:

1 Chapter 2 Fractions

2 Day….. Multiplying and dividing fractions by whole numbers, mixed numbers and fractions. Using models to solve problems involving the multiplication and division of fractions Solving real world problems involving the multiplication and division of fractions Exploring Fractions Review

3 Day 1

4 Bell Work Show your work.
Mary's dad says that he will give her an allowance of $2 the first month, $4 the second month, $8 the third month, and so on. Mary knows that her dad is using a base of 2. Mary doesn't think that this is a good deal. She thinks $50 a month is a better deal. How much will she make in a year if she does it her way. Show your work. b) How much will Mary make the twelfth month using her dad's idea? How did you find this number? c) Which deal is better, Mary's or her Dad's? By how much? d) How much will Mary make in a year if she does what her dad wants? Show your work.

5 Multiply and Divide Fractions.
I Can…. Multiply and Divide Fractions.

6 Vocabulary Fraction- a number that represents part of a whole or part of a set Greatest Common Factor- the greatest of the common factors of two or more numbers Improper Fraction- a fraction with a numerator that is greater than or equal to the denominator Mixed Number- a number that has a whole number part and a fraction part Reciprocal – two numbers with a product of 1 Simplest Form- a fraction in which the GCF of the numerator and denominator is 1

7 Multiplying Fractions
Essential Understanding: To multiply a fraction by a fraction, you simply multiply the numerators, then the denominators. To multiply a fraction by a whole number or a mixed number, you must first change the number to an improper fraction. Then, multiply the numerators and the denominators. Write each product in simplest form. Quick Check: Complete problems 1-6 on page 104

8 Dividing Fractions Essential Understanding:
To divide a fraction by a fraction, simply flip the second fraction and multiply. To divide a fraction by a whole number or a mixed number, change the number to an improper fraction. Then, flip the second fraction and multiply. Quick Check: Complete problems on page

9 Wrap it Up Review Questions Exit Tickets

10 Day 2

11 Draw a diagram to show how much water will be needed.
Bell Work Nathan is baking cookies and the recipe calls for cups of water. He needs to make 1 whole batch and only of another batch, for a total of batches. How much water will Nathan need to bake the cookies? Draw a diagram to show how much water will be needed.

12 I Can…. Create story context for equations involving the multiplication and division of fractions ~And~ Use a visual fraction model to show my work.

13 Vocabulary No New Vocabulary
Fraction- a number that represents part of a whole or part of a set Greatest Common Factor- the greatest of the common factors of two or more numbers Improper Fraction- a fraction with a numerator that is greater than or equal to the denominator Mixed Number- a number that has a whole number part and a fraction part Reciprocal – two numbers with a product of 1 Simplest Form- a fraction in which the GCF of the numerator and denominator is 1

14 Watch This

15 Explore Group Work Activity You will be given a recipe.
Your job is to create , model, and solve 2 story problems using your recipe. (1 multiplication and 1 division) Be sure you check your work with a calculator!!! We will use these problems in class tomorrow, be ready to share. 

16 Wrap it Up Review Questions Exit Tickets

17 Day 3

18 (Hint: Area = Length x Width)
Bell Work 1) Hakeem’s front porch measures 9 3/4 feet by 4 feet. Estimate the area of his front porch. Justify your answer. (Hint: Area = Length x Width) 2) Leslie spread organic fertilizer on 4/5 of her flower pots to test how much they would grow. If she has 25 flower pots, how many did she spread fertilizer on?

19 I Can…. Can look at my answer to check that I answered what was asked and see if my answer makes sense

20 Vocabulary No New Vocabulary
Fraction- a number that represents part of a whole or part of a set Greatest Common Factor- the greatest of the common factors of two or more numbers Improper Fraction- a fraction with a numerator that is greater than or equal to the denominator Mixed Number- a number that has a whole number part and a fraction part Reciprocal – two numbers with a product of 1 Simplest Form- a fraction in which the GCF of the numerator and denominator is 1

21 Watch This

22 Presentation of Story Context

23 Wrap it Up Review Questions Exit Tickets

24 Day 4

25 Create a story problem for 6 ÷ ¼ = Illustrate the solution
Bell Work Create a story problem for 6 ÷ ¼ = Illustrate the solution

26 Vocabulary No New Vocabulary
Fraction- a number that represents part of a whole or part of a set Greatest Common Factor- the greatest of the common factors of two or more numbers Improper Fraction- a fraction with a numerator that is greater than or equal to the denominator Mixed Number- a number that has a whole number part and a fraction part Reciprocal – two numbers with a product of 1 Simplest Form- a fraction in which the GCF of the numerator and denominator is 1

27 I Can…. solve problems involving the addition, subtraction, multiplication, and division of mixed numbers

28 You will have 15 minutes to complete 4 stations.
Explore Lab Rotations 1-8 You will have 15 minutes to complete 4 stations.

29 Wrap it Up Review Questions Exit Tickets

30 Day 5

31 Bell Work Sandy wants to split one-half of a pan of brownies between herself and three friends. How much of the pan of brownies will each person get?

32 Fluently multiply and divide fractions.
I Can…. Fluently multiply and divide fractions.

33 Vocabulary No New Vocabulary
Fraction- a number that represents part of a whole or part of a set Greatest Common Factor- the greatest of the common factors of two or more numbers Improper Fraction- a fraction with a numerator that is greater than or equal to the denominator Mixed Number- a number that has a whole number part and a fraction part Reciprocal – two numbers with a product of 1 Simplest Form- a fraction in which the GCF of the numerator and denominator is 1

34 Let’s Review Please Take out your Study Guide

35 Wrap it Up Review Questions Quiz

36 Fractions to Decimals to Percent
Converting Numbers Fractions to Decimals to Percent


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