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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 "eight" as a number. → 8Prompt: Say the word out loud.
  2. Which word is 10? (eleven / ten / nine / eight) → tenPrompt: Count up to 10 and listen to the last word you say.
  3. Write "seven" as a number. → 7Prompt: 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 "sixty-one" in digits. → 61Prompt: The first part of the word tells the tens.
  2. Which is the word for 56? (fifty / sixty-five / sixty-six / fifty-six) → fifty-sixPrompt: 56 has 5 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. Write "thirty-nine" in digits. → 39Prompt: The first part of the word tells the tens.
  2. Which is the word for 78? (eighty-seven / seventy-eight / eighty-eight / seventy) → seventy-eightPrompt: 78 has 7 tens. Find the word that starts with that tens word.

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

    Which is the word for 25?

    • A. twenty
    • B. fifty-two
    • C. thirty-five
    • D. twenty-five
  2. Question 2

    Write "eighty-four" in digits.

    Answer

  3. Question 3

    Which is the word for 46?

    • A. sixty-four
    • B. forty-six
    • C. forty
    • D. fifty-six
  4. Question 4

    Write "forty-two" in digits.

    Answer

  5. Question 5

    Which is the word for 52?

    • A. sixty-two
    • B. fifty-two
    • C. fifty
    • D. twenty-five
  6. Question 6

    Write "ninety-two" in digits.

    Answer

  7. Question 7

    Which is the word for 31?

    • A. thirty
    • B. thirty-one
    • C. forty-one
    • D. thirteen
  8. Question 8

    Write "eighty-seven" in digits.

    Answer

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Answer key: Read and write number words to 100

  1. 1. D. twenty-five

  2. 2. 84

  3. 3. B. forty-six

  4. 4. 42

  5. 5. B. fifty-two

  6. 6. 92

  7. 7. B. thirty-one

  8. 8. 87