Lesson 4: Referent - Summary

   Summary

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Review what you have learned prior to completing the Lesson Assignment.

Key Ideas

  • A referent is an object of known size that can be used to estimate unknown measurements. It is not a standard measuring device or unit.
  • Referents are used when a measuring device is unavailable or when an estimate of a measurement is all that is needed.
  • Referents can be used for both the SI and imperial measurement systems.

Key Terms

  • referent
  • uniform


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