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Lesson Plan: Converting Units of Time: Years, Months, Weeks, and Days Mathematics • 4th Grade

This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to convert a larger unit to a smaller unit when working with years, months, weeks, and days and compare durations by converting to the same unit.


Students will be able to

  • convert durations up to 10 weeks into days,
  • convert durations up to 10 years into months,
  • convert durations up to 10 years into weeks,
  • convert durations up to 10 years into days,
  • convert mixed measures by converting the larger unit to the smaller unit,
  • compare two durations, including mixed measures.


Students should already be familiar with

  • multiplying three-digit numbers by one-digit numbers,
  • multiplying by 10,
  • reading, writing, adding, and subtracting numbers up to 10,000.


Students will not cover

  • writing number sentences using the approximately equal to symbol (),
  • multiplying by two-digit numbers.

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