**Lesson Plan of Number Line**

**Subject Mathematics**

**Grade III**

**Students` Learning Outcomes**

- Represent a given number on number line.
- Identify the value of a number from number line.

**Information for Teachers**

- In mathematics, a number line is a straight line which represents the marks corresponds to the real numbers.

- The number line is usually represented horizontally.
- Positive numbers are represented on the right side of zero, and negative numbers are represented on the left side of zero.
- Arrow-head on either end of the drawing suggests that line can continue indefinitely in the positive and negative directions.
- While teaching the lesson, also consult textbook where and when applicable.

**Material / Resources**

Writing board, chalk/ marker, duster, textbook

**Introduction**

- Write the numbers on the board:

- Draw a straight line on the board and ask the students that what is this? (straight Line)
- Mark ten points on this line at equal steps.
- Tell the students that each mark will represent a number.

- Tell the students that it is called number line.
- Ask the students what number line tells us.
- After taking their response tell that a number line represents number in specific sequence. As in the above example number line shows the sequence of numbers from 0 to 10.

**Development**

**Activity 1**

- Draw a number line on the board.
- Ask the students let us represent numbers on this number line; for example 2, 5 and 8.
- Tell them that to represent these numbers, we will put marks on the number line.

- Ask the students to draw the number line on their notebooks and represent the following numbers on it.

- Now ask the students to represent the following numbers on the number line.

**Activity 2**

- Demonstrate to the students with the help of number line we can also compare the two numbers.
- Draw the following number line on the board.

- Ask the students; compare 14 and 16 using number line.
- Collect their response and elicit that number line shows that each number is greater than all the numbers to its left and less than all the numbers to its right.
- The number line shows that 14<16.
- Now ask the students to compare the following numbers by drawing number line.

**Sum up / Conclusion**

- Zero comes in the middle of number line.
- Number line represents numbers in a specific sequence.
- With the help of number line we can compare the numbers.

**Assessment**

- Ask the students to show the following comparisons by drawing number line.

**Follow up**

- Ask the students to show odd and even numbers between 0, to 20, with using number line.
- Ask the students to solve the questions given in the textbook.