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Math lesson plan · 1st grade (Year 2 in England) · 30 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 · 4 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 7? (five / seven / nine / six) → sevenPrompt: Count up to 7 and listen to the last word you say.
  3. Write "zero" as a number. → 0Prompt: Say the word out loud.

Hook · 3 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 · 7 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 · 6 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-three" in digits. → 63Prompt: The first part of the word tells the tens.
  2. Which is the word for 65? (sixty-five / sixty / seventy-five / fifty-six) → sixty-fivePrompt: 65 has 6 tens. Find the word that starts with that tens word.

You do: independent practice · 7 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 6 questions are on the student sheet below, with answers in the key.

Exit ticket · 3 min

  • Two questions on their own. Sort answers into got it / nearly / not yet to plan the next lesson.
  1. Write "seventy-three" in digits. → 73Prompt: The first part of the word tells the tens.
  2. Which is the word for 61? (sixteen / sixty / seventy-one / sixty-one) → sixty-onePrompt: 61 has 6 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

eurekami

Read and write number words to 100

Name

Date

Score/ 6

  1. Question 1

    Write "fifty-one" in digits.

    Answer

  2. Question 2

    Which is the word for 79?

    • A. seventy
    • B. ninety-seven
    • C. eighty-nine
    • D. seventy-nine
  3. Question 3

    Write "eighty-seven" in digits.

    Answer

  4. Question 4

    Which is the word for 86?

    • A. eighty
    • B. sixty-eight
    • C. ninety-six
    • D. eighty-six
  5. Question 5

    Write "twelve" in digits.

    Answer

  6. Question 6

    Which is the word for 71?

    • A. seventeen
    • B. seventy-one
    • C. eighty-one
    • D. seventy

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Answer key: Read and write number words to 100

  1. 1. 51

  2. 2. D. seventy-nine

  3. 3. 87

  4. 4. D. eighty-six

  5. 5. 12

  6. 6. B. seventy-one