# Lesson Plan of Number Line

## 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.