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Lesson plan

Lesson 14: Using Operations on Decimals to Solve Problems

teaches Common Core State Standards MP4 http://corestandards.org/Math/Practice/MP4
teaches Common Core State Standards MP3 http://corestandards.org/Math/Practice/MP3
teaches Common Core State Standards 6.NS.B.3 http://corestandards.org/Math/Content/6/NS/B/3

Lesson 14: Using Operations on Decimals to Solve Problems

In this lesson, students apply their knowledge of operations on decimals to two sporting contexts. They analyze the distance between hurdles in a 110-meter hurdle race. In this situation, students use the given context to determine which arithmetic operations are relevant and use them to solve the problems. Additionally, they draw or use a diagram to help them make sense of the measurements, as well as to communicate their reasoning about the measurements (MP3). The numbers used in the problems reflect measurements that can be accurately measured on site, so the decimals can all be calculated by hand.

Lesson overview

  • 14.1 Warm-up: Close Estimates (5 minutes)
  • 14.2 Optional Activity: Applying Division with Decimals (15 minutes)
  • 14.3 Activity: Distance between Hurdles (20 minutes)
  • 14.4 Optional Activity: Examining a Tennis Court (20 minutes)
  • Lesson Synthesis
  • 14.5 Cool-down: Middle School Hurdle Race (5 minutes)

Learning goals:

  • Apply operations with decimals to solve problems about the dimensions of a sports field or court, and explain (orally, in writing, and using other representations) the solution method.
  • Choose whether an exact answer or an estimate is appropriate for a given problem.
  • Interpret a verbal description or diagram that represents the dimensions of a sports field or court.

Learning goals (student facing):

  • Let’s solve some problems using decimals.

Learning targets (student facing):

  • I can use addition, subtraction, multiplication, and division on decimals to solve problems.

Required materials:

  • Geometry toolkits

Glossary:

  • Access the complete Grade 6 glossary.

Standards

  • This lesson builds on the standard: CCSS.5.OA.A.2MS.5.OA.2MO.5.RA.B.3

 

 

 

 

 

IM 6–8 Math was originally developed by Open Up Resources and authored by Illustrative Mathematics, and is copyright 2017-2019 by Open Up Resources. It is licensed under the Creative Commons Attribution 4.0 International License (CC BY 4.0). OUR's 6–8 Math Curriculum is available at https://openupresources.org/math-curriculum/.

Adaptations and updates to IM 6–8 Math are copyright 2019 by Illustrative Mathematics, and are licensed under the Creative Commons Attribution 4.0 International License (CC BY 4.0).

Adaptations to add additional English language learner supports are copyright 2019 by Open Up Resources, and are licensed under the Creative Commons Attribution 4.0 International License (CC BY 4.0).

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