Thinkabara

🧮 5th Grade · Math5.NBT.A.3bUnit 1: Place value, powers of ten & decimals

Comparing decimals

Google Classroom

🎯 Objective: Students compare decimals to thousandths using place value.

Lesson outline

  1. Which is greater, 0.45 or 0.405? Line up places and compare.
  2. Show why 0.45 = 0.450 with grids.
  3. Order sets of four decimals.
  4. Exit: 1.307 _ 1.37.

Lesson 4 of 5 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

5.NBT.A.3b

Common Core State Standards for Mathematics, Grade 5 — typical US scope & sequence

🏁 Unit goals

  • Explain place value patterns, including powers of 10
  • Read, write, compare and round decimals to thousandths

✅ 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: Decimals: all four operations📚 All 5th Grade skills🎮 Learning games⚡ Capy Live class quiz

🗓️ Plan the whole year like this

Add 5th 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 “Place value, powers of ten & decimals”

  1. Ten times and one-tenth
  2. Powers of ten
  3. Decimals to thousandths
  4. Comparing decimals
  5. Rounding decimals

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