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🧮 4th Grade · Math4.OA.B.4Unit 3: Multiplicative comparison, factors & multiples

Factors and factor pairs

Google Classroom

🎯 Objective: Students find all factor pairs of a number up to 100.

Lesson outline

  1. Build every rectangle you can with 24 tiles.
  2. List the factor pairs: 1 × 24, 2 × 12, 3 × 8, 4 × 6.
  3. Find factor pairs for 36 and 48 in pairs.
  4. Exit: all factors of 36.

Lesson 3 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

4.OA.B.4

Common Core State Standards for Mathematics, Grade 4 — typical US scope & sequence

🏁 Unit goals

  • Interpret multiplication as comparison (35 is 5 times as many as 7)
  • Find factor pairs and multiples; identify prime and composite numbers

✅ 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

📚 All 4th Grade skills🎮 Learning games⚡ Capy Live class quiz

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More lessons in “Multiplicative comparison, factors & multiples”

  1. Times as many
  2. Comparison word problems
  3. Factors and factor pairs
  4. Multiples
  5. Prime and composite

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