Lesson plan

Lesson 12: Using a Trundle Wheel to Measure Distances

teaches Common Core State Standards 7.RP.A http://www.corestandards.org/the-standards
teaches Common Core State Standards MP4 http://corestandards.org/Math/Practice/MP4
teaches Common Core State Standards MP6 http://corestandards.org/Math/Practice/MP6
teaches Common Core State Standards MP5 http://corestandards.org/Math/Practice/MP5
teaches Common Core State Standards 7.G.B.4 http://corestandards.org/Math/Content/7/G/B/4
teaches New York State Standards NY-7.G.4.

Lesson 12: Using a Trundle Wheel to Measure Distances

This lesson is optional. In the third lesson of this sequence, students use their trundle wheels to re-measure the distance from the first lesson. After students have had experiences using their trundle wheels, they can connect their observations of how the wheel works with the distance computations and discuss the sources of errors in a more meaningful way. Students engage in important parts of mathematical modeling (MP4), they use appropriate tools (MP5), and attend to precision (MP6).

As with all lessons in this unit, all related standards have been addressed in prior units. This lesson provides an optional opportunity to go deeper and make connections between domains.

Lesson overview

  • 12.1 Optional Activity: Measuring Distances with the Trundle Wheel (40 minutes)
    • There is a digital applet in this activity.

Learning goals:

  • Calculate the distance of a path using the circumference and number of rotations of a trundle wheel.
  • Compare measurement calculations and express differences between measurements as a percentage.
  • Critique (orally) methods for measuring a long distance.

Learning goals (student facing):

  • Let’s use our trundle wheels.

Required materials:

  • trundle wheels

Required preparation:

  • Prepare to distribute the trundle wheels students built in the previous lesson.
  • Make sure students can still get to the path (between 50 and 100 meters) that they measured the other day.

Glossary:

  • Access the complete Grade 7 glossary. 

 

 

 

 

 

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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