U3L12 Percentages & Tape Diagrams

What do you notice? What do you wonder?

​Warm-up pg 87

Percentages & Tape

Diagrams

Lesson # 12

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2019 Open Up Resources |

Let’s use tape diagrams
to understand
percentages.

Today’s Goals

❏ I can use tape diagrams to solve

different problems like “What is
40% of 60?” or “60 is 40% of
what number?”

Revisiting Jada’s Puppy

Activity 12.2

● MLR1: Stronger & Clearer Each Time

● Think Pair Share

Open Ended

Jada has a new puppy that weighs 9 pounds. It is now at about 20% of its adult weight.

Here is a diagram that Jada drew about the weight of her puppy.

a. The adult weight of the puppy will be 45 pounds. How can you see that in the diagram?

Fill in the Blanks

Open Ended

Jada has a new puppy that weighs 9 pounds. It is now at about 20% of its adult weight.

Here is a diagram that Jada drew about the weight of her puppy.

b. How can you see that fraction of its adult weight in the diagram?

​What about Jada's friend's dog

Fill in the Blanks

Math Response

Jada’s friend has a dog that weighs 90 pounds. Here is a diagram Jada drew that represents the weight of her friend’s dog and the weight of her puppy.

b. Compare the weight of the puppy and the dog using fractions.

Type answer here

Correct Answer: \frac{1}{10}

Deg^°

Rad

Fill in the Blanks

Let’s Talk About It

5 Dollars

Activity 12.3

● MLR8: Discussion Supports

● Think Pair Share

Fill in the Blanks

Draw

Noah has $5. a. Ellie had $2

b. Compare Ellie’s and Noah’s money using fractions. Draw a diagram to illustrate.

Fill in the Blanks

Draw

Noah has $5. a. Diego had $7.50

d. Compare Diego’s and Noah’s money using fractions. Draw a diagram to illustrate.

Let’s Talk About It

Staying Hydrated

Activity 12.4

● MLR3: Clarify, Critique, Correct

● Think Pair Share

Fill in the Blanks

Fill in the Blanks

Are you ready for more?

Dropdown

Decide if each scenario is possible.

a. Andre plans to bring his dog on his next hike, along with 150% as much water as he brought on this hike.​ ​

Select answer

b. Andre plans to drink 150% of the water he brought on his hike. ​

Select answer

Lesson Synthesis

If you are comparing two quantities using percentages,
you can also compare them using fractions. Tape diagrams
can help.
● If you only have 50% of the money needed to buy a

book, what fraction is that?

● If you run 125% of your goal for the week, what

fraction is that?

Today’s Goals

❏ I can use tape diagrams to solve

different problems like “What is
40% of 60?” or “60 is 40% of
what number?”

Small and Large

Cool Down 12.5

Dropdown

A small ​

Select answer

holds 75% as much as a large ​ ​

Select answer

.

Time to
practice what you know

Fill in the Blanks