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Math lesson plan · 1st grade (Year 2 in England) · 60 minutes

Read and write number words to 100

Number sense

CCSS 1.NBT.A.1England: Y1 Number and place valueEngland: Y2 Number and place value

Objective and success criteria

Students will: Read and write number words to 100.

  • I can answer questions on today's skill on my own, without help.
  • I can explain each step and say why it works.
  • I can check my answer and spot a mistake.

Before and after

Needs first: Number words zero to ten; Tens and ones

Leads to: Read and write number words to 1000

Materials: Place value chart, Base-ten blocks or a number line, Mini whiteboards and pens, Printed student sheet (below).

Warm-up · 6 min

  • Quick retrieval from earlier learning (Number words zero to ten; Tens and ones). Students answer on mini whiteboards.
  • Show answers together and note who needs support in the main task.
  1. Write "ten" as a number. → 10Prompt: Say the word out loud.
  2. Which word is 2? (two / four / three / zero) → twoPrompt: Count up to 2 and listen to the last word you say.
  3. Write "four" as a number. → 4Prompt: Say the word out loud.

Hook · 6 min

  • Show a number in the news or a price tag and ask what each digit is worth.
  • Share the objective: Read and write number words to 100. Read the success criteria together.

I do: model it · 12 min

  • Work through the example out loud, saying why you do each step, not just what you do.
  • Example: Write "eighty-five" in digits.
  • Step 1: "eighty-five" = 85
  • Answer: 85
  • Pause after each step and ask a student to say what comes next.

We do: guided practice · 12 min

  • Do these together. Students try each step on whiteboards before you reveal it.
  • Use the hints as prompts rather than giving the answer.
  1. Write "fifty" in digits. → 50Prompt: The first part of the word tells the tens.
  2. Which is the word for 98? (ninety / ninety-eight / eighty-eight / eighty-nine) → ninety-eightPrompt: 98 has 9 tens. Find the word that starts with that tens word.

You do: independent practice · 17 min

  • Students work on the student sheet. Circulate and check the first two answers of every student early.
  • Students who finish: write a question of their own for a partner, with the answer.

The 8 questions are on the student sheet below, with answers in the key.

Exit ticket · 7 min

  • Two questions on their own. Sort answers into got it / nearly / not yet to plan the next lesson.
  1. Which is the word for 82? (eighty / ninety-two / eighty-two / twenty-eight) → eighty-twoPrompt: 82 has 8 tens. Find the word that starts with that tens word.
  2. Write "sixty-six" in digits. → 66Prompt: The first part of the word tells the tens.

Watch out for

  • Reading 1,045 as one thousand four hundred five: point to each place and say its value.
  • Thinking a longer number is always bigger, even with decimals (0.45 vs 0.5).

Support and stretch

Support

  • Review first: Number words zero to ten.
  • Use concrete materials: place value chart.
  • Give the first step of each question, or a partly worked example to finish.
  • Pair with a confident partner for the guided practice.

Stretch

  • Move on to: Read and write number words to 1000.
  • Explain a common mistake in writing and how to fix it.
  • Write a word problem that uses today's skill, then solve a partner's.

Homework and more practice

Free online practice with hints and printable worksheets for this skill: eurekami.com/math/grade-1.

Free lesson plan from eurekami.com/lesson-plan-builder

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Read and write number words to 100

Name

Date

Score/ 8

  1. Question 1

    Write "ninety-six" in digits.

    Answer

  2. Question 2

    Which is the word for 72?

    • A. twenty-seven
    • B. eighty-two
    • C. seventy
    • D. seventy-two
  3. Question 3

    Write "seventy-four" in digits.

    Answer

  4. Question 4

    Which is the word for 83?

    • A. ninety-three
    • B. eighty
    • C. thirty-eight
    • D. eighty-three
  5. Question 5

    Write "thirty-four" in digits.

    Answer

  6. Question 6

    Which is the word for 32?

    • A. thirty
    • B. twenty-three
    • C. thirty-two
    • D. forty-two
  7. Question 7

    Write "eighty-one" in digits.

    Answer

  8. Question 8

    Which is the word for 47?

    • A. forty-seven
    • B. seventy-four
    • C. fifty-seven
    • D. forty

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Answer key: Read and write number words to 100

  1. 1. 96

  2. 2. D. seventy-two

  3. 3. 74

  4. 4. D. eighty-three

  5. 5. 34

  6. 6. C. thirty-two

  7. 7. 81

  8. 8. A. forty-seven