Lesson 5

More or Less

Est. Class Sessions: 2

Developing the Lesson

Part 2: Making Comparisons to Six-Link Measures

Collect and Record Data. Show students a chain of six connecting links. Use it to measure several objects in the classroom.

Ask:

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  • Which lengths were more than six links?
  • Which lengths were less than six links? How can you tell they are less?
  • Which lengths were about the same as six links?

Display the Measuring with Six Links page. Distribute a chain of six links to each student, or have each student build a chain of this length. To demonstrate the activity's procedure, ask individual volunteers to find an object that is more than, less than, and about the same length as the six-link chain. See Content Note. Show students how to record the data on the data table of the displayed page. Students may either write the name of the object or draw a picture of it on the table. Ask student pairs to continue collecting and recording data on the Measuring with Six Links page.

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The concepts more than, less than, and about the same are important and should be emphasized. At this point, however, do not ask that the differences be expressed in quantities, such as "the book is about three links longer than the chain."

Share Data. After students have completed the data collection and table, have them share their work. Ask a volunteer to name an object that is in his or her data table. Then ask the class to predict if the object is more than, less than, or about the same length as a six-link chain. Have a student volunteer measure the object to check. Repeat this procedure for other objects.

Adventure Book:
Student Activity Book: 9
Answers
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SAB_Mini
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Master: