**Fraction Vocabulary**

What other strategies can you use to solve a multiplication fraction problem?- Turn and Talk

Strategies

Think about how you solve whole number multiplication problems.

60x2 can be:

60+60 or

you can perform the standard algorithm 60x2.

How does this strategy apply to multiplying fractions with whole numbers?

I forgot how far I ran today but I know the following:

I ran two times less than Sophie.

Sophie ran 5 times more than Jake.

Jake ran two times more than Corina.

Corina ran 2/3 of a mile.

Use the above information to figure out how much I ran. Explain your thinking.

Monday, April 7, 2014

Warm up

**I can multiply a whole number with a fraction.**

What strategy did you use to solve the problem?

Brownie recipe

:

1/2 cup of butter

1 cup sugar

2 eggs

1 tsp of vanilla

1/3 cup of cocoa

1/2 cup of flour

1/4 tsp of salt

1/4 tsp of baking powder

Repeated Addition

Draw a picture

Algorithm

Others

**Multiplying Fractions**

product

numerator

denominator

repeated addition

I am making brownies for a party. The following recipe makes enough brownies for 16 people. There will be 32 guests at the party so I need to double the recipe. Help me figure out what amount of each ingredient I will need when I double the recipe.

Exit Slip

C- Whisper to your partner

H- Raise your hand, stay on task, try your best

A- Working with your partner to solve the math problem.

M- With your partner at your desk

P- synthesizing, high stamina

S- How can we use the multiplication algorithm to solve fraction with fraction multiplication problems? e.g.: 1/2 x 2/3

Group work expectations

The Algorithm for solving multiplication fractions

Practice together:

2/7 x 3

4/5 x 2

Practice Alone:

2/3 x 7

7/8 x 2

*Challenge: 7 x 4/2

9 x 11/15

Solve numbers 1 OR 2 on a post it and answer number 3:

1. 1/9 x 7

2. 4/5 x 4

3. What strategy did you use?

4. Challenge: 2/3 x 4/2

*Write the answer in simplest form.

Self-Assess:

1: Don't understand

2. I need support

3. I fully understand

You will need to following things on the carpet: ** Sit with your iPad partner, not your assigned spot :)

*A pencil *A dry erase board and materials *iPad with a partner

On Friday night, John ate pizza for dinner and had 1/2 of the pizza left over. On Saturday, he ate 1/3 of what was left. How much of the whole pizza did John eat on Saturday? Prove your answer is correct by drawing a picture.

Challenge:

The lunchroom at Mandy’s school serves pizza every Friday. Each slice is 2/16 of a pizza. Mandy eats one slice every week. What fraction of a pizza does Mandy eat in 3 weeks? 7 weeks? Prove that your answer is correct by drawing a picture to represent the problem. Then represent the problem using addition and multiplication.

Practice solving the following problem with a friend.

Try this challenging problem with a friend. Then we will talk about the strategies we used to solve it.

C- Whisper to your partner

H- Raise your hand, stay on task, try your best

A- Working with your partner to solve the math problem.

M- With your partner at your desk

P- synthesizing, high stamina

S- Get with another group and compare strategies. Then teach them how you solved the problem.

Group Work Expectations