Math facts Addition Mathematics Primary 1 Second Term Lesson Notes Week 2

Lesson Plan: Introduction to Math Facts – Addition of Numbers

General Information

• Subject: Mathematics
• Class: Primary 1
• Term: Second Term
• Week: Week 2
• Age: 6 years
• Topic: Introduction to Math Facts – Addition of Numbers
• Sub-topic: Addition of single-digit and three single-digit numbers, concept of doubles and near doubles, counting forward in 2s and 3s.
• Duration: 40 minutes

Behavioral Objectives

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

1. Count and identify numbers 71-80 and 1-80.
2. Write numbers 1-80 in numerals.
3. Explain the term “addition.”
4. Solve real-life problems involving addition of doubles and near doubles.
5. Add two and three whole numbers with sums not exceeding 20.
6. Write simple math addition statements, e.g., 7+8=?, 9+9=?
7. Skip count forward in 2s and 3s.

Keywords

Addition, doubles, near doubles, skip counting, sum.

Set Induction

The teacher sings an addition song with the pupils:
“1 plus 1, that’s 2,
2 plus 2, that’s 4,
Let’s add more numbers today,
Math is fun for sure!”

The teacher shows colorful flashcards with simple addition problems like 1+1 and asks pupils to guess the answers.

Entry Behavior

Pupils can recognize numbers 1-70 and count objects within that range.

Learning Resources and Materials

1. Flashcards with numbers and addition problems.
2. Beads, seeds, or marbles for counting.
3. Pictures of objects like fingers, eyes, and groups of items for explaining doubles.

Building Background/Connection to Prior Knowledge

1. Pupils have learned to count numbers up to 70 in the previous term.
2. They can identify objects and match numbers to quantities.

Embedded Core Skills

1. Problem-solving skills.
2. Critical thinking.
3. Collaboration and teamwork.

Learning Materials

• Flashcards
• Beads
• Seeds/marbles
• Counting charts

Reference Books

• Lagos State Scheme of Work
• Basic Mathematics for Primary Schools

Content

1. Definition and Explanation
   • Addition is the process of combining two or more numbers to get a total.
   • Doubles mean adding the same number to itself (e.g., 3 + 3 = 6).
   • Near doubles involve adding a number to its neighbor (e.g., 3 + 4 = 7).
   • Skip counting involves counting forward by a fixed number (e.g., 2, 4, 6, 8 for 2s).
2. Examples
   • 5 + 5 = 10 (doubles).
   • 7 + 8 = 15 (near doubles).
   • 3 + 4 + 2 = 9 (adding three numbers).
   • Skip counting by 2s: 2, 4, 6, 8, 10.
   • Skip counting by 3s: 3, 6, 9, 12, 15.

Evaluation Questions

15 Fill-in-the-Blank Questions with Options

1. What is 7 + 8? ___.
   (a) 15 (b) 14 (c) 16 (d) 13
2. Double of 6 is ___.
   (a) 8 (b) 10 (c) 12 (d) 14
3. What comes after 71? ___.
   (a) 72 (b) 70 (c) 73 (d) 69
4. Add: 4 + 3 + 2 = ___.
   (a) 9 (b) 8 (c) 7 (d) 6
5. Skip count by 2s: 2, 4, ___, 8.
   (a) 5 (b) 6 (c) 7 (d) 9
6. Add 9 + 0 = ___.
   (a) 8 (b) 10 (c) 9 (d) 7
7. Near double of 6 and 7 is ___.
   (a) 13 (b) 14 (c) 15 (d) 12
8. Write the missing number: 3, 6, 9, ___.
   (a) 12 (b) 10 (c) 11 (d) 14
9. Add: 7 + 3 + 2 = ___.
   (a) 10 (b) 11 (c) 12 (d) 13
10. What is 5 + 5? ___.
    (a) 9 (b) 10 (c) 11 (d) 12

15 FAQs with Answers

1. Q: What is addition?
   A: Addition means combining two or more numbers to get a total.
2. Q: What is a double?
   A: A double is adding the same number to itself.
3. Q: What is skip counting?
   A: Skip counting means counting forward by a fixed number like 2s or 3s.
4. Q: How do you add 3 + 3?
   A: The sum is 6.
5. Q: What is the near double of 7 and 8?
   A: The sum is 15.

Presentation

1. Teacher’s Activities
   • Review counting numbers from 1-70.
   • Demonstrate addition with real objects like beads and seeds.
   • Explain doubles and near doubles using simple stories.
   • Teach skip counting using charts.
2. Learners’ Activities
   • Count beads or objects.
   • Solve simple addition problems in groups.
   • Practice skip counting aloud.

Assessment: 10 Short Questions

1. What is 7 + 8?
2. Write the numbers from 71 to 80.
3. Solve: 5 + 3.
4. What is the double of 4?
5. Skip count by 3s: 3, ___, 9.

Conclusion

The teacher reviews the lesson and marks pupils’ work. Feedback is given, and additional questions are provided for practice.