Thinkabara

🧮 1st Grade · Math1.MD.A.2Unit 9: Measuring length

Measurement stories

Google Classroom

🎯 Objective: Students solve problems by measuring and comparing lengths.

Lesson outline

  1. How many cubes longer is the ribbon than the crayon?
  2. Measure and compare in pairs.
  3. Record and share.
  4. Exit: one measurement comparison.

Lesson 4 of 4 in this unit. In the Lesson Planner this lesson takes 1–3 class periods depending on your timetable: day 1 introduce & model, then practice, small-group reteach and a quick check.

📐 Standard

1.MD.A.2

Common Core State Standards for Mathematics, Grade 1 — typical US scope & sequence

🏁 Unit goals

  • Order three objects by length
  • Measure length with same-size units, with no gaps or overlaps

✅ Check for understanding

End with the exit ticket in the outline. Sort answers into got it / almost / not yet and start the next lesson with a 5-minute reteach for the “not yets”.

Practice & resources on Thinkabara

🎯 Practice: Measure lengths & tell time📚 All 1st Grade skills🎮 Learning games⚡ Capy Live class quiz

🗓️ Plan the whole year like this

Add 1st Grade Math to your free Lesson Planner: enter your timetable once and every period shows the next lesson, skipping weekends and school breaks.

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More lessons in “Measuring length”

  1. Order by length
  2. Measure with units
  3. Why same-size units?
  4. Measurement stories

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