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6-8 Accelerated 6 Unit 3 Lesson 9

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K-5 Math •6-8 Math 9-12 Math

Course

•Accelerated 6 Accelerated 7

Unit

Unit 1 Unit 2 •Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8 Unit 9

Lesson

Lesson 1 Lesson 2 Lesson 3 Lesson 4 Lesson 5 Lesson 6 Lesson 7 Lesson 8 •Lesson 9 Lesson 10 Lesson 11 Lesson 12 Lesson 13 Lesson 14 Lesson 15 Lesson 16 Lesson 17 Lesson 18 Lesson 19 Lesson 20 Lesson 21 Lesson 22 Lesson 23

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6-8
9-12

Accelerated 6
Accelerated 7

Grade 6
Grade 7
Grade 8

Unit 1
Unit 2
Unit 3
Unit 4
Unit 5
Unit 6
Unit 7
Unit 8
Unit 9

Lesson 1
Lesson 2
Lesson 3
Lesson 4
Lesson 5
Lesson 6
Lesson 7
Lesson 8
Lesson 9
Lesson 10
Lesson 11
Lesson 12
Lesson 13
Lesson 14
Lesson 15
Lesson 16
Lesson 17
Lesson 18
Lesson 19
Lesson 20
Lesson 21
Lesson 22
Lesson 23

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Unit 3, Lesson 9

Fractional Lengths

Accelerated 6

Practice

Problem 1
Student Task Statement
One inch is around centimeters.

Ruler. Top of ruler, inches. Scale 0 to 4, by 1's. Each inch is divided into 16 equal parts with tick marks. Bottom of ruler, centimeters. Scale 0 to 10 by 1's. Each centimeter is divided into 10 equal parts with tick marks.

How many centimeters long is 3 inches? Show your reasoning.

What fraction of an inch is 1 centimeter? Show your reasoning.

What question can be answered by finding in this situation?

Lesson 9 Resources

Student Materials Student Materials in Spanish

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Problem 2

Student Task Statement

A zookeeper is feet tall. A young giraffe in his care is feet tall.

How many times as tall as the zookeeper is the giraffe?
What fraction of the giraffe’s height is the zookeeper’s height?

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Problem 3

Student Task Statement

A rectangular bathroom floor is covered with square tiles that are feet by feet. The length of the bathroom floor is feet and the width is feet.

How many tiles does it take to cover the length of the floor?
How many tiles does it take to cover the width of the floor?

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Problem 4

ForLesson 7: Finding an Algorithm for Dividing Fractions

Student Task Statement

A road crew paved -mile of a road one morning. If this is of the section to be paved, how long is the entire section?

Write a multiplication equation and a division equation to represent the question.
Find the answer, and show your reasoning.

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Problem 5

ForLesson 4: What Fraction of a Group?

Student Task Statement

What fraction of is ? Show your reasoning. Use the grid to draw a tape diagram if you find it helpful.

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Problem 6

ForLesson 3: How Many Groups?

Student Task Statement

Noah says, “There are groups of in 2.” Do you agree with him? Draw a tape diagram to show your reasoning. Use graph paper, if needed.

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