Chapter 2Fractions

Day…..1. Multiplying and dividing fractions by w

hole numbers, mixed numbers and fractions.

2. Using models to solve p

roblems involving the multiplication and division of fractions

3. Solving real world p

roblems involving the multiplication and division of fractions

4. Exploring Fractions

5. Review

Day 1

Bell WorkMary'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.

d) How much will Mary make in a year if she does what her dad wants? Show your work.

c) Which deal is better, Mary's or her Dad's? By how much?

b) How much will Mary make the twelfth month using her dad's idea? How did you find this number?

I Can….Multiply and Divide

Fractions.

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

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

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

Wrap it Up

• Review

• Questions

• Exit Tickets

Day 2

Bell Work

Nathan is baking cookies and the recipe calls for 3 cups of water. He needs to make 1 whole batch and only of another batch, for a total of 1 batches. How much water will Nathan need to bake the cookies?

Draw a diagram to show how much water will be needed.

I Can….• Create story context for equations

involving the multiplication and division of fractions

~And~• Use a visual fraction model to show

my work.

VocabularyNo 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

Watch This• http://learnzillion.com/lessons/212-multiply-fr

actions-by-whole-numbers-using-bar-models• http://

learnzillion.com/lessons/199-divide-whole-numbers-by-unit-fractions-using-visual-models

• http://learnzillion.com/lessons/1383-solve-word-problems-involving-division-of-mixed-numbers-and-fractions-using-picture-models

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.

Wrap it Up

• Review

• Questions

• Exit Tickets

Day 3

Bell Work1) 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?

Justify your answer.

I Can….Can look at my answer to

check that I answered what was asked and see if my answer makes sense

VocabularyNo 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

Watch This• http://

learnzillion.com/lessons/1323-solve-division-of-fractions-problems-using-reciprocals

Presentation of Story Context

Wrap it Up

• Review

• Questions

• Exit Tickets

Day 4

Bell Work

Create a story problem for

6 ÷ ¼ =

Illustrate the solution

VocabularyNo 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

I Can….solve problems involving the addition, subtraction,

multiplication, and division of mixed

numbers

Explore

Lab Rotations

1-8

You will have 15 minutes to complete 4 stations.

Wrap it Up

• Review

• Questions

• Exit Tickets

Day 5

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?

I Can….Fluently multiply and

divide fractions.

VocabularyNo 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

Let’s Review

PleaseTake out your

Study Guide

Wrap it Up

• Review

• Questions

• Quiz

Converting Numbers• Fractions to Decimals to Percent