Thinkabara

🧮 3rd Grade · Math3.MD.C.7cUnit 4: Area

Area and the distributive property

Google Classroom

🎯 Objective: Students split a rectangle into two to multiply.

Lesson outline

  1. Draw a 7 × 8 rectangle; split it into 7 × 5 and 7 × 3.
  2. Write 7 × 8 = (7 × 5) + (7 × 3) = 35 + 21 = 56.
  3. Students split 6 × 9 and 8 × 7 rectangles two different ways.
  4. Exit: split 6 × 9 and find the area.

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

3.MD.C.7c

Common Core State Standards for Mathematics, Grade 3 — typical US scope & sequence

🏁 Unit goals

  • Measure area by counting unit squares
  • Relate area to multiplication and addition

✅ 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: Area & perimeter📚 All 3rd Grade skills🎮 Learning games⚡ Capy Live class quiz

🗓️ Plan the whole year like this

Add 3rd 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 “Area”

  1. What is area?
  2. Square units
  3. Area by multiplying
  4. Area and the distributive property
  5. Area of combined rectangles

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