# Whole Numbers – Ordering and writing of Numbers from 1 To 40

**Subject: ****Mathematics **

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**Term: First Term **

**Class :Primary 1**

### Week : Week 5

**Topic:** Whole Numbers – Ordering and writing of Numbers from 31 To 40. Reverse Counting of Numbers. Mathematics Primary 1 First Term Lesson Notes Week 5

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**Previous lesson: **

The pupils have previous knowledge of

### Introduction To Numbers 31 and 32

that was taught as a topic in the previous lesson

**Learning Objectives **

By the end of the lesson, the pupils should be able to

- Read number 31 to 36 and read the inverse
- Arrange numbers in ascending and descending orders
- Trace and write the number from 1 to 30

**Instructional Materials:**

- Wall charts
- Audio-visual
- Pictures
- Related Online Video
- Flash Cards
- Posters
- Sand tray
- Toys

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**Methods of Teaching:**

- Class Discussion
- Group Discussion
- Asking Questions
- Explanation
- Role Modelling
- Role Delegation

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**Reference Materials:**

- Scheme of Work
- Online Information
- Textbooks
- Workbooks

**Content:**

## Whole Numbers – Ordering and writing of Numbers from 31 To 40. Reverse Counting of Numbers.

1️⃣ First, let’s look at the numbers from 31 to 40:

31, 32, 33, 34, 35, 36, 37, 38, 39, 40

2️⃣ Now, let’s learn how to order them from smallest to largest. Can you tell me which number is the smallest among these?

👦 Student: 31 is the smallest!

3️⃣ Great job! Now, which number is the largest?

👦 Student: 40 is the largest!

4️⃣ Excellent! Now, let’s practice counting backward from 40 to 31. Can you do it?

👦 Student: Sure! 40, 39, 38, 37, 36, 35, 34, 33, 32, 31.

5️⃣ Fantastic! You’ve got it! Remember, when you order numbers, the smallest comes first, and the largest comes last. Keep practicing, and you’ll become a math expert! 🌟

Is there anything else you’d like to learn about numbers today?

**Read number 31 to 36 and read the inverse **

To read the numbers 31 through 36 backwards, we can list them in the following order:

36, 35, 34, 33, 32, 31

So, the numbers 31 through 36, read backwards, are 36, 35, 34, 33, 32, 31

To read the numbers 31 through 36 backwards, we can simply list them in reverse order, starting with the highest number and ending with the lowest number. In this case, the numbers 31 through 36, read backwards, are 36, 35, 34, 33, 32, 31. Reading numbers backwards is a simple process that involves rearranging the order of the numbers from high to low or low to high. This can be useful in a variety of contexts, such as when counting down from a high number or when trying to remember a sequence of numbers in a particular order.

1️⃣ First, let’s look at all the numbers from 1 to 40:

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40

2️⃣ Now, let’s learn how to order them from the smallest to the largest. Can you tell me which number is the smallest among these?

👦 Student: 1 is the smallest!

3️⃣ Well done! Now, which number is the largest?

👦 Student: 40 is the largest!

4️⃣ Great job! Now, let’s practice counting backward from 40 to 1. Can you do it?

👦 Student: Of course! 40, 39, 38, 37, 36, 35, 34, 33, 32, 31, 30, 29, 28, 27, 26, 25, 24, 23, 22, 21, 20, 19, 18, 17, 16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1.

5️⃣ Excellent! You’ve mastered ordering and counting numbers from 1 to 40 and even counting backward! Keep practicing, and you’ll become a math superstar! 🌟

## Trace and write number 1 and 30

**To trace and write any number , you can follow these steps:**

- Begin by drawing a straight horizontal line across the top of your page.
- Draw a vertical line straight down from the center of the horizontal line.
- Write the numeral “3” above the top horizontal line and to the left of the vertical line. Write the numeral “4” below the bottom horizontal line and to the right of the vertical line.

It’s important to take your time and pay attention to the correct formation of each numeral as you trace and write them. You may want to practice writing the numbers a few times before you are confident in your ability to write them neatly and accurately.

**Evaluation**

1. The smallest number in the range from 1 to 40 is _______.

(a) 1 (b) 10 (c) 20 (d) 40

2. The largest number in the range from 1 to 40 is _______.

(a) 1 (b) 10 (c) 20 (d) 40

3. If we count backward from 40, the number just before 40 is _______.

(a) 39 (b) 30 (c) 20 (d) 10

4. When ordering numbers, we start with the _______ number.

(a) Largest (b) Smallest (c) Middle (d) Random

5. What number comes after 15 when counting forward from 1 to 40?

(a) 14 (b) 16 (c) 25 (d) 50

6. The number that comes just before 12 when counting backward from 40 is _______.

(a) 10 (b) 11 (c) 9 (d) 13

7. When we count backward, are we going towards larger or smaller numbers?

(a) Larger (b) Smaller (c) Same (d) Different

8. In the sequence of numbers from 1 to 40, which number is in the middle?

(a) 20 (b) 10 (c) 30 (d) 40

9. If we reverse count from 1 to 40, which number comes right before 25?

(a) 24 (b) 30 (c) 26 (d) 10

10. What is the 5th number when counting backward from 40?

(a) 35 (b) 30 (c) 25 (d) 20

11. If we start counting forward from 10, which number comes after 12?

(a) 11 (b) 13 (c) 14 (d) 9

12. The number that comes immediately after 30 when counting forward is _______.

(a) 29 (b) 31 (c) 32 (d) 40

13. What is the 3rd number when counting backward from 1 to 40?

(a) 3 (b) 4 (c) 5 (d) 6

14. When we count forward, are we going towards larger or smaller numbers?

(a) Larger (b) Smaller (c) Same (d) Different

15. What is the last number when counting backward from 1 to 40?

(a) 1 (b) 10 (c) 20 (d) 40

**Presentation**

**Presentation:**

**Introduction (5 minutes):**

- Greet the students and make them feel comfortable.
- Show enthusiasm for the topic.
- Explain that today, we’ll be working with numbers from 31 to 40.

The topic is presented step by step

Step 1:

The class teacher revises the previous topics

Step 2.

He introduces the new topic.

Step 3:

The class teacher allows the pupils to give their own examples and he corrects them when the needs arise.

**Teacher’s Activities (15 minutes):**

- Start with a brief recap of numbers 1 to 30 to ensure students remember the basics.
- Display number cards from 31 to 40 on the board.
- Explain that we’ll be ordering these numbers from smallest to largest.
- Ask students to identify the smallest and largest numbers in this range (interactive discussion).
- Show a visual aid (e.g., number line or chart) to help visualize the order.
- Work together to arrange the numbers in order on the board.
- Discuss why it’s essential to know how to order numbers.

**Learners’ Activities (15 minutes):**

- Distribute number cards (31 to 40) to students.
- Ask students to work in pairs to order the numbers and write them in their notebooks.
- Encourage peer learning and teamwork.
- Walk around to provide assistance and ensure everyone participates.

**Assessment (5 minutes):**

- To assess understanding, call on individual students to:
- Identify the smallest number between 31 and 40.
- Identify the largest number between 31 and 40.
- Count backward from 40 to 31.

- Provide praise and feedback to encourage participation.

**Conclusion**

The class teacher wraps up or concludes the lesson by giving out short notes to summarize the topic that he or she has just taught.

The class teacher also goes round to make sure that the notes are well copied or well written by the pupils.

He or she does the necessary corrections when and where the needs arise.

**Homework:**

- Practice writing numbers from 31 to 40.
- Count backward from 40 to 31.

This detailed lesson plan ensures that students not only learn the content but also actively engage in the process. It includes a variety of teaching strategies to cater to different learning styles and abilities