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Lesson Plan: Comparing Masses Indirectly Mathematics • 1st Grade

This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to compare the masses of two objects by comparing their masses to a third object.


Students will be able to

  • compare two objects by mass by comparing them both to a third object,
  • write comparison statements comparing two objects,
  • order three objects using indirect comparison.


Students should already be familiar with

  • directly comparing objects by mass,
  • the terms heavier and lighter.


Students will not cover

  • measuring objects,
  • indirect comparison of more than 3 objects.

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