We are moving our free videos to YouTube and retiring student functionality on 7/15. Learn more

Lesson plan

Lesson 9: Measurement Error (Part 2)

teaches Common Core State Standards MP8 http://corestandards.org/Math/Practice/MP8
teaches Common Core State Standards MP6 http://corestandards.org/Math/Practice/MP6
teaches Common Core State Standards 7.G.B.6 http://corestandards.org/Math/Content/7/G/B/6

Lesson 9: Measurement Error (Part 2)

This lesson is optional. This is the second lesson exploring measurement error in more detail. While the previous lesson examined percent error when measurements are added together, this lesson works with percent error when measurements are multiplied. While the activities in this lesson can stand on their own, students will benefit from having done the activities in the previous lesson first.

In addition to examining accuracy of measurements carefully (MP6), students will work through examples and look for patterns (MP8) in order to hypothesize, and eventually show, how percent error behaves when measurements with error are multiplied to one another.

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

  • 9.1 Optional Activity: Measurement Error for Area (20 minutes)
  • 9.2 Optional Activity: Measurement Error for Volume (25 minutes)

Learning goals:

  • Comprehend that percent error is greatest when the actual values are smaller than the measured values for an object.
  • Generalize (orally) a process for calculating the maximum percent error for the area of a rectangle and volume of a rectangular prism.

Learning goals (student facing):

  • Let’s check how accurate our calculations are.

Required materials:

  • four-function calculators

Glossary:

  • Access the complete Grade 7 glossary.

Standards:

  • This lesson builds on the standard:CCSS.7.RP.A.3MS.7.RP.3MO.7.RP.A.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).

The Illustrative Mathematics name and logo are not subject to the Creative Commons license and may not be used without the prior and express written consent of Illustrative Mathematics.

This site includes public domain images or openly licensed images that are copyrighted by their respective owners. Openly licensed images remain under the terms of their respective licenses.