Addition and Subtraction Mathematics Primary 3 First Term Lesson Notes Week 1

Mathematics Lesson Plan for Primary 3

Subject: Mathematics
Class: Primary 3
Term: First Term
Week: 1
Age: 8 years
Topic: Addition and Subtraction
Sub-topic: Addition and Subtraction within 100
Duration: 60 minutes

Behavioural Objectives:

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

1. Add numbers within 100 correctly.
2. Subtract numbers within 100 accurately.
3. Solve simple word problems involving addition and subtraction.

Keywords:

• Addition
• Subtraction
• Sum
• Difference

Set Induction:

The teacher will show pupils some toys and ask them to count and then add or take away some to introduce addition and subtraction.

Entry Behaviour:

Pupils should know how to count up to 100.

Learning Resources and Materials:

• Flashcards with numbers
• Counters (e.g., bottle caps, beans)
• Number line
• Chart with addition and subtraction symbols

Building Background/Connection to Prior Knowledge:

Pupils are familiar with counting and basic addition and subtraction from previous classes.

Embedded Core Skills:

• Critical thinking
• Problem-solving
• Numeracy

Learning Materials:

• Textbooks
• Workbooks

Reference Books:

• Lagos State Scheme of Work
• Mathematics Textbook for Primary 3

Instructional Materials:

• Whiteboard and marker
• Flashcards
• Counters

Content:

1. Addition:
   • Adding two numbers (e.g., 23 + 15).
   • Steps: Write the numbers in columns, add the units, then add the tens.
   • Example: 23 + 15 = 38.
2. Subtraction:
   • Subtracting two numbers (e.g., 46 – 29).
   • Steps: Write the numbers in columns, subtract the units, then subtract the tens.
   • Example: 46 – 29 = 17.

Evaluation

1. 23 + 15 = __
   a) 38
   b) 28
   c) 33
   d) 48
2. 46 – 29 = __
   a) 17
   b) 19
   c) 21
   d) 25

Class Activity Discussion

1. Q: What is addition?
   A: Addition is combining two or more numbers to get a total.
2. Q: What is subtraction?
   A: Subtraction is taking away one number from another to find the difference.

Presentation:

Step 1:
The teacher revises the previous topic on counting.

Step 2:
The teacher introduces the new topic by explaining addition and subtraction with examples.

Step 3:
The teacher allows the pupils to give their own examples. The teacher corrects pupils where necessary.

Teacher’s Activities:

• Show examples using flashcards.
• Guide pupils in solving problems.
• Correct mistakes and explain steps clearly.

Learners’ Activities:

• Participate in counting and solving problems.
• Ask questions.
• Work in pairs or groups to solve problems.

Assessment:

• Pupils will solve 10 addition and subtraction problems on their own.

Evaluation Questions:

1. 12 + 7 = __
2. 34 – 18 = __
3. 45 + 23 = __
4. 67 – 32 = __
5. 15 + 15 = __
6. 29 – 14 = __
7. 50 + 25 = __
8. 70 – 45 = __
9. 80 + 10 = __
10. 55 – 20 = __

Conclusion:

The teacher goes around to check pupils’ work and provide necessary corrections.