Lesson Planning of Ascending & Descending Order
Subject Mathematics
Grade 2^{nd}
Students` Learning Outcomes
§ Arrange numbers up to 999, written in mixed form, in increasing or decreasing orders.
§ Identify numbers given in ascending or descending orders.
Information for Teachers
§ Ascending order means the arrangement of numbers from smallest to greatest.
§ Descending order means the arrangement of numbers from greatest to smallest.
§ With the help of the concept of comparison we arrange numbers in ascending or descending orders.
Material / Resources
Writing board, chalk / marker, duster, textbook
Introduction
 Tell the students, that sometimes backward counting is very useful for the identification of numbers.
 Specifically when we are moving towards a destination ascending order and descending order are very important.
 Tell them that in descending order we move from greatest number to smallest number and in ascending order ewe move from smallest numbers to greatest numbers.
 Tell them that we can use the word moving forward instead of ascending order and moving backward instead of descending order.
For example;
1, 2, 3, 4, 5, 6, 7, 8, 9, 10
This arrangement is ascending order.
10, 9, 8, 7, 6, 5, 4, 3, 2, 1
This arrangement is descending order.
Development
Activity 1
 Draw square boxes on the floor of classroom with the help of chalk and write numbers 91100 in them.
 Ask one student to stand in the box having number 91 and moves forward to the box having number 100.
 Call another student and ask him to stand in the box with number 100 and move backward to 91.
 Ask the students where he was and where he has reached now?
 Now explain the students that moving from 91 to 100 is ascending order.
 Whereas, moving from 100 – 91 descending order.
 Write on the board.
Activity 2
 Write the following numbers on the board.
426, 425, 429, 427, 428
 Tell the students that we are going to arrange these numbers in ascending order.
 In ascending we arrange numbers from smallest to greatest.
 Ask students to start writing numbers from downward direction to the upward directions. I.e.
 Write the following numbers on the board.
 Demonstrate the students that arrangement of numbers from greatest to smallest is called descending order.
 Explain the students that moving backward it is known as descending order.
Activity 3
 Draw the following on the board.
 Ask the students to arrange the numbers in ascending in order in their notebooks.
 Observe their work and guide them.
 Ask the students to arrange the numbers in descending order.
Sum up / Conclusion
 Arrange from smallest to greatest numbers is called ascending order. For example counting from 1 to 10 (1, 2, 3….10)
 Counting from greatest to smallest numbers is known as descending order for example counting from 10 to 1 (10, 9, 8….1)
Assessment
 Write the missing numbers in the following ascending order.
110, 111 __,__114 ____, 116, ____,118, ____, 120
 Arrange the following numbers in descending order.
Follow up

 When we go up upstairs what kind of order is it?
 When we come downstairs what kind of order is it?
 Ask the students to solve the questions given in their textbook.