Thinkabara

🧮 2nd Grade · Math2.OA.C.3Unit 11: Odd & even, arrays and equal groups

Even numbers as doubles

Google Classroom

🎯 Objective: Students write even numbers as the sum of two equal addends.

Lesson outline

  1. Show 12 = 6 + 6.
  2. Make a doubles chart.
  3. Sort numbers as odd or even and write doubles.
  4. Exit: write 18 as a double.

Lesson 2 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

2.OA.C.3

Common Core State Standards for Mathematics, Grade 2 — typical US scope & sequence

🏁 Unit goals

  • Tell whether a group to 20 is odd or even
  • Use addition to find the total in an array (foundation for multiplication)

✅ 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: Equal groups — the road to multiplication📚 All 2nd Grade skills🎮 Learning games⚡ Capy Live class quiz

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More lessons in “Odd & even, arrays and equal groups”

  1. Odd and even
  2. Even numbers as doubles
  3. Arrays
  4. Equal groups

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