Mathematics JSS 1 Second Term Lesson Plan – Week 1

Topic: Whole Numbers – Counting and Writing

Subject: Mathematics

Class: JSS 1

Term: Second Term

Week: 1

Age: 10 – 12 years

Duration: 40 minutes

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Behavioral Objectives

By the end of the lesson, students should be able to:

1. Define whole numbers.
2. Count and write whole numbers correctly.
3. Identify the place value of whole numbers up to billions.
4. Compare and arrange whole numbers in ascending and descending order.
5. Solve simple problems using whole numbers.

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Keywords

• Whole numbers
• Counting
• Place value
• Ascending
• Descending

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Set Induction

The teacher writes a large number on the board (5,678,901) and asks students to read it aloud, helping them with pronunciation and place values.

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Entry Behavior

Students have prior knowledge of counting and recognizing numbers up to thousands.

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Learning Resources and Materials

• Number charts
• Flashcards with large numbers
• Place value tables

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Building Background/Connection to Prior Knowledge

Students have learned how to count numbers up to thousands in primary school. This lesson extends their knowledge to millions, billions, and trillions.

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Embedded Core Skills

• Numeracy
• Critical thinking
• Problem-solving

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Reference Books

• Lagos State Scheme of Work for JSS 1 Mathematics
• New General Mathematics for JSS 1
• Essential Mathematics for JSS 1

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Instructional Materials

1. Number line chart
2. Flashcards with large numbers
3. Place value charts
4. Abacus (if available)

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Content

1. Meaning of Whole Numbers

Whole numbers are numbers that do not contain fractions or decimals. They include 0 and all positive numbers:
0, 1, 2, 3, 4, 5, 6, … (going on infinitely).

2. Counting and Writing Whole Numbers

• Whole numbers are counted in order: 1, 2, 3, 4, 5, 6, …
• Large numbers are grouped with commas for clarity:
  • 1,000 (One thousand)
  • 1,000,000 (One million)
  • 1,000,000,000 (One billion)
  • 1,000,000,000,000 (One trillion)

3. Place Values of Whole Numbers

Each digit in a whole number has a place value. The table below shows the place values:

Place Value	Example (3,462,718,905)
Trillions	3
Billions	4
Millions	6
Hundred Thousands	2
Ten Thousands	7
Thousands	1
Hundreds	8
Tens	9
Ones	5

4. Comparing Whole Numbers

To compare whole numbers:

• Look at the number of digits (more digits = larger number).
• If the number of digits is the same, compare digits from left to right.

Example: Which is greater? 8,432,109 or 8,432,901

Answer: 8,432,901 is greater because 901 > 109.

5. Arranging Whole Numbers in Ascending and Descending Order

• Ascending Order: From smallest to largest.
• Descending Order: From largest to smallest.

Example: Arrange 14, 278, 32, 105, 90 in ascending order.

Answer: 14, 32, 90, 105, 278

Example: Arrange 250, 40, 1,000, 18, 500 in descending order.

Answer: 1,000, 500, 250, 40, 18

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Examples of Whole Numbers

1. 10,000 (ten thousand)
2. 345,678 (three hundred forty-five thousand, six hundred seventy-eight)
3. 2,500,000 (two million, five hundred thousand)
4. 50 (fifty)
5. 1,245 (one thousand, two hundred forty-five)
6. 900,000,000 (nine hundred million)
7. 7,032,015 (seven million, thirty-two thousand, fifteen)
8. 4,100,000,000 (four billion, one hundred million)
9. 8,052 (eight thousand, fifty-two)
10. 78,987,654,321 (seventy-eight billion, nine hundred eighty-seven million, six hundred fifty-four thousand, three hundred twenty-one)

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Evaluation (Fill in the Blanks with Options)

1. Whole numbers start from ____.
   a) 1 b) 0 c) -1 d) 100
   Answer: (b) 0

2. The number 1,000,000,000 is called ____.
   a) One billion b) One trillion c) One thousand d) One million
   Answer: (a) One billion

3. The place value of 7 in 7,632,018,479 is ____.
   a) Tens b) Millions c) Billions d) Thousands
   Answer: (c) Billions

4. 8,000,000,000 is read as ____.
   a) Eight million
   b) Eight billion
   c) Eight trillion
   d) Eight hundred thousand
   Answer: (b) Eight billion

5. The place value of 4 in 4,320,076,015 is ____.
   a) Billions
   b) Thousands
   c) Millions
   d) Hundreds
   Answer: (a) Billions

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Class Activity Discussion (FAQs with Answers)

1. What are whole numbers?
   Whole numbers are numbers without fractions or decimals, starting from 0.

2. What is the largest whole number?
   Whole numbers go on infinitely, so there is no largest whole number.

3. How do we separate large numbers for clarity?
   We use commas: 1,000,000 (one million).

4. What is the difference between a million and a billion?
   One billion is 1,000 times larger than one million.

5. How do we compare whole numbers?
   Start from the left and compare digits in the same place value.

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Presentation Steps

1. Teacher’s Activity:

   • Revises the previous topic.
   • Introduces the new topic with number examples.
   • Explains place values and how to write large numbers.

2. Learners’ Activity:

   • Read and write large numbers.
   • Identify place values.
   • Solve practice problems on whole numbers.

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Evaluation Questions (Short Answer)

1. Define whole numbers.
2. Write 7,265,839,104 in words.
3. What is the place value of 3 in 5,384,217,600?
4. Compare 3,842,009,120 and 3,842,010,900.
5. Convert 900,000,000 to words.

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Conclusion

The teacher reviews the lesson and assigns exercises for further practice.

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