Thinkabara

🧮 5th Grade · Math5.MD.C.5cUnit 8: Volume

Composite figures

Google Classroom

🎯 Objective: Students find the volume of solids made of two rectangular prisms.

Lesson outline

  1. Build an L-shaped solid from two prisms.
  2. Split, find each volume and add.
  3. Practice.
  4. Exit: one composite solid.

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.MD.C.5c

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

🏁 Unit goals

  • Understand volume as unit cubes
  • Use V = l × w × h and V = B × h
  • Find volumes of combined solids

✅ 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: Volume📚 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.

Add to my planner See the year’s sequence

More lessons in “Volume”

  1. What is volume?
  2. Counting cubes
  3. Volume formulas
  4. Composite figures
  5. Volume design project

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