Lesson Plan: Measuring Object Length on a Number Line
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In this Cyberchase activity, students watch a video clip in which a square is measured incorrectly by starting from the 1 inch mark. After students learn to measure from the 0 mark, they are taught to measure objects that are not aligned with 0 by creating a number sentence using subtraction.Grade Level:
4-7Suggested Time
1 hour
Media Resources
The Measurement Debate QuickTime Video
Materials
Handout : "Measuring Objects"
Assessment: Level A
Assessment: Level B
Answer Key
The Lesson
Part I: Learning Activity
1. Read the following to your students: "In this Cyberchase episode, when the Hacker convinces Mr. Zero to leave Gollywood, the number 0 disappears from the city. Britney and Mary-Pat, two twin movie stars, are about to place their handprints on the walk of fame, but they have a disagreement about the size of their squares. Watch the video clip to see how the absence of 0 leads to a misunderstanding and pay attention to how the CyberSquad resolves the problem."
2. Play the The Measurement Debate QuickTime Video .
3. Distribute Handout : "Measuring Objects" .
4. Discuss the handout.
Part II: Assessment
Assessment: Level A (proficiency): Students practice measuring objects from zero, and some that do not start from zero, with lengths and positions that include quarters and halves.
Assessment: Level B (above proficiency): Students practice measuring objects with lengths and positions that include eighths, quarters, and halves.
We assign reference terms to each statement within a standards document and to each media resource, and correlations are based upon matches of these terms for a given grade band. If a particular standards document of interest to you is not displayed yet, it most likely has not yet been processed by ASN or by Teachers' Domain. We will be adding social studies and arts correlations over the coming year, and also will be increasing the specificity of alignment.Media Resources Used in this Lesson:
The Measurement Debate
(QuickTime Video)
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Funding for the VITAL/Ready to Teach collection was secured through the United States Department of Education under the Ready to Teach Program.