Mastering Numbers Up to 100: Adding, Comparing, and Ordering

Lesson Plan: Numeracy – Numbers up to 100

Subject: Numeracy

Class: Primary 1 (Basic 1)

Term: First Term

Week: 1

Age: 6-7 years

Topic: Numbers up to 100

Sub-topic: Addition, Number Words, Comparison, and Ordering

Duration: 40 minutes

Behavioral Objectives: At the end of the lesson, pupils should be able to:

1. Add numbers up to 100, both forward and backward.
2. Write numbers in words up to 100.
3. Compare numbers up to 100 using <, >, or =.
4. Order up to 5 sets of numbers not exceeding 100.

Keywords: Numbers, addition, comparison, ordering, number words

Set Induction: Use a number chart to show numbers 1-100 and ask pupils to identify specific numbers.

Entry Behavior: Pupils should be familiar with numbers up to 50.

Learning Resources and Materials: Number chart, flashcards, number line, counters

Building Background/Connection to Prior Knowledge: Review counting numbers from 1 to 50 with pupils.

Core Skills: Addition, comparison, ordering, writing number words

Reference Books: Lagos State Scheme of Work for Primary 1

Instructional Materials: Number chart, flashcards, number line, counters

Content

1. Addition of Numbers Up to 100:
   • Example: 45 + 10 = 55
   • Example: 75 – 20 = 55
2. Numbers in Words Up to 100:
   • Example: 45 = Forty-five
   • Example: 78 = Seventy-eight
3. Comparison of Numbers Using <, >, or =:
   • Example: 45 < 55
   • Example: 78 > 65
4. Ordering Sets of Numbers:
   • Example: [23, 45, 12, 89, 54]
   • Ordered: [12, 23, 45, 54, 89]

Evaluation

1. 45 + 10 = __
   • a) 50
   • b) 55
   • c) 60
   • d) 65
2. 78 – 8 = __
   • a) 60
   • b) 68
   • c) 70
   • d) 80
3. 23 in words is __
   • a) Twenty
   • b) Twenty-two
   • c) Twenty-three
   • d) Thirty
4. 55 > __
   • a) 60
   • b) 50
   • c) 55
   • d) 65
5. __ < 70
   • a) 65
   • b) 75
   • c) 80
   • d) 85

Class Activity Discussion

1. Q: What is 50 + 20? A: 70
2. Q: How do you write 34 in words? A: Thirty-four
3. Q: Which is greater, 67 or 76? A: 76
4. Q: Arrange these numbers in ascending order: 45, 22, 89. A: 22, 45, 89
5. Q: 50 + 25 = ? A: 75

Presentation

Step 1: Revising the Previous Topic

• Review counting numbers from 1 to 50 with the pupils using a number chart.

Step 2: Introducing the New Topic

• Show numbers up to 100 on the chart and explain the concepts of addition, number words, comparison, and ordering.

Step 3: Allowing Pupils to Contribute

• Ask pupils to solve simple addition problems, write numbers in words, compare numbers using <, >, =, and order sets of numbers.

Teacher’s Activities

• Guide pupils through the examples.
• Provide feedback and correct mistakes.
• Use flashcards and counters to demonstrate addition and comparison.

Learners’ Activities

• Practice adding numbers up to 100.
• Write given numbers in words.
• Compare numbers and order sets as instructed.

Assessment

• Solve addition problems: 25 + 30, 50 – 15
• Write 67 in words.
• Compare 45 and 55 using <, >, or =.
• Order the numbers: 10, 40, 25, 70.

Evaluation Questions

1. What is 20 + 15?
2. Write 57 in words.
3. Compare 89 and 45 using <, >, or =.
4. Order the numbers: 33, 12, 48, 27, 9.

Conclusion

• Mark pupils’ work and provide feedback.
• Reinforce key points about addition, number words, comparison, and ordering.