3, Lesson 8, Unit 9, Grade 7, OpenUp icon
Instructional Activity

How Long Are These Floor Boards?

Lesson 8. Unit 9. Grade 7 Open Up Resources

Open Up Resources20 min(s)

This Instructional Activity is a part of the Lesson 8, Unit 9, Grade 7. This activity examines how measurement errors behave when they are added together. In other words, if I have a measurement m with a maximum error of 1% and a measurement n with a maximum error of 1%, what percent error can m + n have? In addition to examining accuracy of measurements carefully, students work through examples and look for patterns in order to hypothesize, and eventually show, how percent error behaves when measurements with error are added to one another.

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