Comparison of Numbers

 

Lesson Planning of Comparison of Numbers

Subject Mathematics

Grade 2nd

Students` Learning Outcomes

  • Compare 2 or 3 –digit numbers (Hundred, Tens and Ones)

Information for Teachers

  • When we compare any two 2-digit numbers, first we compare digits at Tens place and then digits at Ones place.
  • When we compare any two 2-digit numbers, first we compare digits at Hundreds place then digits at Tens place then digits at Ones place.

Material / Resources

Writing board, chalk / marker, duster, textbook, chart

Introduction

  • Ask students if I have 10 rupees in one hand and 18 rupees in the other hand which amount is greater?
  • Take their response and encourage them.
  • Tell them that we compare any two numbers with the help of its place value chart.
  • For comparison we start from left hand side.
  • But in place value table we write from right hand side.
  • Today we will learn how to compare 2-digit and 3-digit numbers.

 

Development

Activity 1

  • Draw a place value table on the board and explain the students. 
  • In a 2-digit number we have two place values to be compared that is Tens and Ones.
  • Tens are greater than Ones.
  • So, first we compare Tens and then Ones.
  • If we have same digit at Tens place we move to the Ones and compare its digits.
  • In 10 and 15 we have same digits at Tens place so we get no idea which number is greater.
  • So we move to digit at Ones place.
  • We see that 0 is less than 5.
  • Hence 15 is greater than 10.

 

Activity 2

  • Write on the board 100, 200, 300, 400, and 500?
  • Ask the students which number is greater out of these?
  • Take their feed back.
  • Make a place value chart on the board.
  • Ask the students to observe the Hundreds column.

 

  • Now call any student and ask him which number is the greatest? (500)

 

Activity 3

  • Tell the students that comparison of any 3-digit number is just like the comparison of 2-digit number.
  • In 3-digit numbers first we compare hundreds then tens and then ones.
  • Draw the following chart on the board.
  • Tell them that in 237 and 239 the hundreds place value is the same, so we check tens place, its same again.
  • Now check ones place, it is different.
  • Which number is greater out of 7 and (9)?
  • Hence, 239 is greatest.

 

Sum up / Conclusion

  • In 2-digits numbers first we compare tens and then ones.
  • In 3-digits number first we compare hundreds then tens and then ones.

Assessment

  • Compare the following numbers.
  • Compare the given numbers.

 

Follow up

  • Which number is greater out of 400 and 500 and why?
  • Ask the students to solve the questions given in their textbook.

 

 

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