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Curriculum / Math / 5th Grade / Unit 4: Addition and Subtraction of Fractions/Decimals / Lesson 17

Addition and Subtraction of Fractions/Decimals

Lesson 17

Math

Unit 4

5th Grade

Lesson 17 of 17

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Objective
Standards
Criteria for Success
Tips for Teachers
Anchor Tasks
Problem Set
Target Task
Additional Practice

Objective

Lesson Notes

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Solve two- and multi-step word problems involving addition and subtraction of decimals.

Common Core Standards

Core Standards

The core standards covered in this lesson

5.NBT.B.7 — Add, subtract, multiply, and divide decimals to hundredths, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used.

Number and Operations in Base Ten

5.NBT.B.7 — Add, subtract, multiply, and divide decimals to hundredths, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used.

Foundational Standards

The foundational standards covered in this lesson

4.OA.A.3

Operations and Algebraic Thinking

4.OA.A.3 — Solve multistep word problems posed with whole numbers and having whole-number answers using the four operations, including problems in which remainders must be interpreted. Represent these problems using equations with a letter standing for the unknown quantity. Assess the reasonableness of answers using mental computation and estimation strategies including rounding.

Criteria for Success

The essential concepts students need to demonstrate or understand to achieve the lesson objective

Lesson Notes

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Make sense of a three-act task and persevere in solving it (MP.1).
Solve two- and multi-step word problems that involve the addition and subtraction of decimals (MP.4).
Assess the reasonableness of an answer to a word problem involving the addition and subtraction of decimals (MP.1).

Tips for Teachers

Suggestions for teachers to help them teach this lesson

Lesson Notes

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Let students work on each problem on the Problem Set independently and circulate to see whether students are solving correctly. If not, come back together to discuss how/what to draw on a tape diagram, then allow them to try again on their own. Encourage students to use a strategy of their choice to assess the reasonableness of their answer.

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Anchor Tasks

Tasks designed to teach criteria for success of the lesson, and guidance to help draw out student understanding

25-30 minutes

Lesson Notes

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Problem 1

Lesson Notes

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Act 1: Watch the first 27 seconds of this video from the 2016 Olympics.

a. What do you notice? What do you wonder?

b. Who won the relay race? By how much? Make an estimate.

Guiding Questions

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Student Response

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References

YouTube Video: “USA takes gold in Men's 4x100m Freestyle Relay”

“USA takes gold in Men's 4x100m Freestyle Relay” by is made available by YouTube under the Standard YouTube License. Accessed Feb. 11, 2018, 2:37 p.m..

Problem 2

Lesson Notes

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Act 2: Use the following information to determine who won the relay race and by how much.

Nation

Swimmers

United States

Caeleb Dressel (48.1)

Michael Phelps (47.12)

Ryan Held (47.73)

Nathan Adrian (46.97)

France

Mehdy Metella (48.08)

Fabien Gilot (48.2)

Florent Manaudou (47.14)

Jeremy Stravius (47.11)

Guiding Questions

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Student Response

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Problem 3

Lesson Notes

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Act 3: The United States won the race. They beat France's time by 0.61 seconds.

Was your answer reasonable? Why or why not?

Guiding Questions

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Student Response

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Problem 4

Lesson Notes

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Act 4 (the sequel): What was the winning team's time in minutes and seconds?

Guiding Questions

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Student Response

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Problem Set

15-20 minutes

Lesson Notes

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Problem Set
Problem Set Answer Key

Discussion of Problem Set

Look at #1b. I got 2.36 seconds. Is my answer reasonable? Why or why not? What mistake do you think I made?
Look at #5. What did you get for the cost of the notebooks? What multiplication sentence can I write to describe this relationship? What do you notice about the factors and product?

Target Task

A task that represents the peak thinking of the lesson - mastery will indicate whether or not objective was achieved

5-10 minutes

Lesson Notes

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Naja brought $20 to the corner store.

She spent $3.49 on candy.
She spent $5.79 on a Jamaican beef patty.

How much money did Naja have left?

Student Response

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Additional Practice

The Extra Practice Problems can be used as additional practice for homework, during an intervention block, etc. Daily Word Problems and Fluency Activities are aligned to the content of the unit but not necessarily to the lesson objective, therefore feel free to use them anytime during your school day.

Extra Practice Problems

Extra Practice Problems
Extra Practice Problems Answer Key

Word Problems and Fluency Activities

Help students strengthen their application and fluency skills with daily word problem practice and content-aligned fluency activities.

Lesson Map

Topic A: Addition and Subtraction of Fractions

Addition and Subtraction of Fractions/Decimals

Objective

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Common Core Standards

Core Standards

Number and Operations in Base Ten

Foundational Standards

Operations and Algebraic Thinking

Criteria for Success

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Tips for Teachers

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Anchor Tasks

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Problem 1

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Guiding Questions

Student Response

References

Problem 2

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Guiding Questions

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Problem 3

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Guiding Questions

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Problem 4

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Guiding Questions

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Problem Set

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Discussion of Problem Set

Target Task

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Student Response

Additional Practice

Extra Practice Problems

Word Problems and Fluency Activities

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