LESSON PLANNING OF MULTIPLICATION AS REPEATED ADDITION

Subject Mathematics

Grade 2^{nd}

Students` Learning Outcomes

- Recognize and use multiplication symbol ‘X’
- Recognize multiplication as repeated addition (e.g. 2 + 2 + 2 = 6 or 3 times 2 = 3 X 2 = 6.

Information for Teachers

- Multiplication is the process to adding a number into itself for a number of times. Such as;

- 2 + 2 + 2 + 2 + 2 + 2 = 12, it is equal to 6 X 2 = 12.

- ‘X’ is the sign used for multiplication.

- Multiplication is a quick way of repeated addition, e.g. 2 + 2 + 2 + 2 = repeated 2 by 4 i.e. 4 X 2 = 8 and read as four times two = eight.

- While teaching the lesson, the teacher should also consult textbook at all the steps where and when applicable.

Material / Resources

Writing board, chalk / marker, duster, balls, stones, textbook

Introduction

Activity 1

- Ask from the students;
- Name the parts of body which are two in number, such as; two hands, two legs, two ears, two yes, two feet etc.

- How many fingers are in one hand?
- How many fingers are in two hands?
- How many eyes / hands are of 4 boys?

Development

Activity 1

- Put six pairs of balls / stones on the table and ask from the students.

- How many pairs of balls are there on the table?
- How many balls are there in each pair?
- Ask one student to count in pairs. (Two`s aloud)
- Ask one student to add two`s ‘6’ times such as; 2 + 2 + 2 + 2 + 2 + 2 = 12.
- Ask, how many ‘times’ we wrote ‘2’? (Expected answer would be as; 6 times 2)
- Tell students that for times we use sign ‘X’ (multiplication)
- 6 times 2 are written as 6 X 2 = 12 will read as 6 times 2 are equal to 12.

- Repeat this activity by changing the number of pairs of balls and by involving different students.

Activity 2

- Divide the class into four groups and give stones in the given quantity.

- Ask them to place stones in group of ‘2’.
- Count the stones one by one.
- Then ask them to count in two`s.

- Ask them to tell their counting.
- Group I: will tell as such; 7 groups of 2 = 14 stones and ask them to write on the board in addition. 2 + 2 + 2 + 2 + 2 + 2 + 2 = 14.
- Ask the students;
- How many groups? (Expected answer would be as; 7)
- How many things in each group? (Expected answer would be as; 2)
- 7 times 2 = 14 it is written as 7 X 2 = 14.
- Group II: will tell and will write on the board as;

2 + 2 + 2 + 2 + 2 +2 + 2 + 2 = 16

- So Deuce the answer with help of students as; 8 times 2 = 16 or 8 X 2 = 16.
- On the same pattern ask from group 3 and 4.
- By discussing with class explain the relation that multiplication is actually a repeated addition.

Sum up / Conclusion

- Conclude by asking from the students.

- Are 2 + 2 + 2 + 2 + 2 + 2 (= 12) equal to 2 X 6 or 6 X 2 (=12)?

- Reinforce the concept of repeated addition as multiplication.

Assessment

- How many wheels are there in 4 bicycles?

- How many wheels are there in ten cars?

Follow up

- Ask them to write counting up to 100 on chart paper and encircle the alternate number from the list.
- Ask them to present chart in the class room as such;

- Ask them to encircle the different group of numbers (3, 4, 5, and 10) on chart papers.
- Ask the students to solve the questions given in their textbook.
- There are three rows and each row has 5 apples. So there are how many apples in three rows.