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Parent guide · Grade 2 Math · Unit 1

Lesson 1.3 Even and Odd

Written for the parent. Read the Say this lines aloud as they are, or in your own words. Answers for you are marked Listen for.

At a glance

Time
5 sessions of 20–25 minutes
Goal
Tell whether a number is even or odd.
You need
  • Pencil and crayons
Print
Worksheet A · Worksheet B · the lesson page

Steps

  1. Do this: Ask these out loud. Your child answers out loud; no paper needed.

    • Ask: “6 + 6” Listen for: 12
    • Ask: “9 + 3” Listen for: 12
    • Ask: “2 + 7” Listen for: 9
    • Ask: “4 + 9” Listen for: 13
    • Ask: “6 + 5” Listen for: 11

  2. Say this: “An even number of objects can be paired up with none left over.”

    Say this: “Every even number is a double: 14 = 7 + 7.”

    Say this: “Even: can be split into two equal groups; ends in 0, 2, 4, 6 or 8.”

    Say this: “Odd: one is left over when split in two; ends in 1, 3, 5, 7 or 9.”

  3. Show: Is 46 even or odd?

    Say this: “Look at the ones digit: 6.”

    Say this: “6 is one of 0, 2, 4, 6, 8, so 46 is even.”

    Answer: even

    Show: Fill in the missing number: 9, ___, 13, 15, 17

    Say this: “The numbers go up by 2 each time.”

    Say this: “9 + 2 = 11”

    Answer: 11

  4. Do this: Your child does these with you. Let them try first; help only after a real try.

    Ask: Is 15 even or odd?

    Listen for: odd

    If stuck: Look at the ones digit: 5.

    Ask: Is 13 even or odd?

    Listen for: odd

    If stuck: Look at the ones digit: 3.

    Ask: Is 11 even or odd?

    Listen for: odd

    If stuck: Look at the ones digit: 1.

    7 more practice items on the lesson page, and on Worksheet A and Worksheet B.

    • Looking at the tens digit. Only the ones digit tells even or odd.

  6. Fill a 4 × 4 grid with numbers 2–18. Call out facts like “8 + 7” or “15 − 9.” Cover the answer. Four in a row wins.

  7. Say this: “Tell me what you learned today. Show me with your hands or the counters if you like.”

    Listen for: Tell whether a number is even or odd.

  8. One-minute fact drill on Fridays (aim for 30 correct). Count by twos to 50 and back.

Spread over the week

5 sessions of 20–25 minutes. Stop while it is still going well.

  1. Session 1. Warm-up, then teach the new idea (steps 1 and 2).
  2. Session 2. Warm-up again, then show how with the examples.
  3. Session 3. Practice together, then play the game.
  4. Session 4. More practice on the worksheet, and the daily habit.
  5. Session 5. Quick check: narration and a few practice items. Move on when it is mostly right.