Multiplication as Repeated Addition

Lesson Plan of Multiplication as Repeated Addition

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LESSON PLANNING OF MULTIPLICATION AS REPEATED ADDITION

Subject Mathematics

Grade 2nd

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.

 

  1. How many fingers are in one hand?
  2. How many fingers are in two hands?
  3. 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.

Multiplication as Repeated Addition

  • 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.

 

 

 

 

 

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