Multiplying Fractions

Objectives:

• I will use models to represent multiplication of fractions.

Language objectives:

• I will create scenarios that can be used to practice fraction multiplication.

October Process Words

• Evaluate
• Represent

Melinda had a birthday yesterday. A quarter (1/4) of the birthday cake remained. This morning, Melinda ate 1/3 of the remaining quarter cake. What fraction of the whole cake did Melinda eat this morning?

Using a whiteboard, please do the following:

• Create a model that shows a result to this question.
• Be prepared to present your model to the class.

Betsy’s mom is sewing a quilt that is 8 feet long and 6 feet wide. Betsy wants to work on the quilt, too. Her mom asked her to sew a rectangular piece of the quilt with length ¼ of the length of the quilt and width ½ of the width of the quilt. What fraction of the area of the whole rectangular quilt will Betsy sew?

Using a whiteboard, please do the following:

• Create a model that shows a result to this question.
• Be prepared to present your model to the class.

Potatoes! Boil’em, Mash’em, Stick em in a stew

Things are _______ (awful, bad, okay, good, great) because you have potatoes!  

Create a model to justify each answer.  Write an equation or number sentence for each story, if you can.

Find how many pounds of potatoes you have if you search the cupboards and find…
1)  1/2 a bag of potatoes, which started with 2 pounds of potatoes.

2)  1/2 a bag of potatoes, which started with 2/3 pound of potatoes.  

3)  3/4 a bag of potatoes, which started with 2/3 pound of potatoes.  

4)  1 ½ bags of potatoes, which each started with 2/3 pound of potatoes.

5)  1 ½ bags of potatoes, which each started with 3/4 pound of potatoes.

6)  4 bags of potatoes, which each started with 1 1/3 pound of potatoes.

7)  2 2/3  bags of potatoes, which each started with 3 ¼ pound of potatoes.

8)  ____ bags of potatoes, which each started with ____ pounds of potatoes.
(You make the problem!)