The document provides details of a digital lesson plan for teaching graphs to an 8th grade mathematics class. It includes definitions of key graphing terms like axes, quadrants, and plotting points. It also gives examples of plotting individual points, drawing lines parallel to axes, and drawing lines between two points. The lesson plan aims to help students understand how to draw and interpret graphs through examples and practice problems.

1. DIGITAL LESSON PLAN
GRAPHS

2. STUDENT TEACHER NAME - I.INFINA.V.RAYAL
SCHOOL NAME - SPIC NAGAR HIGHER
SECONDARY SCHOOL,
SPIC NAGAR
SUBJECT - MATHEMATICS
CLASS - VIII A
LESSON TITLE - GRAPHS
TIME AND PERIOD - 45 MINUTES & V PERIOD
DATE - 27.11.2014
CLASS STRENGTH - 43

3. The Pupil
- Discuss the means to draw the graph.
- Recalls the axes in a graph and coordinates.
- Recognizes the method of drawing axes.
- Analyses the given problem.
- Use graph sheet with ease and accuracy.
- Draws the graph neatly.
- Recognizes to locate the points.
- Recognizes plotting the points.

4. Power Point Presentation
Projector
Text book
Black board

5. What is this ?
Have you seen this
before ?

6. RENE DESCARTES is the FATHER
OF GRAPHS.

7. The whole graph sheet is divided
into two axis.
The horizontal line is called as
X- axis. It is denoted by XOX’.
The vertical line is called as
Y-axis. It is denoted by YOY’.

8. The point of intersection of
X-axis and Y- axis is called
as ORIGIN.

9. The whole plane of
graph is divided into
four parts which we
call as QUADRANTS.
I quadrant – ( +,+)
II quadrant _ (-,+)
III quadrant _ (-,-)
IV quadrant _ (+.-)

10. PLOTTING OF POINTS IN THE GRAPH
SHEET
Plot the point A(4,2) on the graph sheet.
Solution:
Given point is A(4,2).
Here,
The X coordinate of A is 4.
The Y coordinate of A is 2.
Both are positive.
It lies in the FIRST quadrant.
PROBLEM 1
SCALE:
X axis 1 cm = 1 Unit
Y axis 1 cm = 1 Unit

11. Plot the point B(2,-4)on the graph sheet.
Solution:
Given point is B(2,-4).
Here,
The X coordinate of B is 2.
The Y coordinate of B is -4.
Both are positive.
It lies in the THIRD quadrant.
PROBLEM 2
SCALE:
X axis 1 cm = 1 Unit
Y axis 1 cm = 1 Unit

12. Drawing straight lines parallel to the
coordinate axes
PROBLEM 3
Draw a graph of X=3
Solution:
Here the X coordinate is 3.
To find Y the following table can be used.
Here the X coordinate does not change.
X 3 3
Y 3 -4
A(3,3)
B(3,-4)SCALE:
X axis 1 cm = 1 Unit
Y axis 1 cm = 1 Unit

13. A(5,7)
B( 2,3)
Drawing straight line using two points
PROBLEM 4
Draw the line joining the points
A(5,7) and B(2,3)
Solution:
Given A(5,7) B(2,3)
Here,
A lies on the first quadrant.
B lies on the first quadrant.
SCALE:
X axis 1 cm = 1 Unit
Y axis 1 cm = 1 Unit

14. PROBLEM 5
Draw the line joining the points
A(-3,2),B(0,0) and C(3,-2)
Solution:
Given A(-3,2),B(0,0) ,C(3,-2)
A lies on the second quadrant.
B lies on the origin.
C lies on the fourth quadrant.
SCALE:
X axis 1 cm = 1 Unit
Y axis 1 cm = 1 Unit
A(-3,2)
B(0,0)
C(3,-2)

15. 1) Who is the FATHER OF GRAPH ?
2) What is origin?
3) In which quadrant the following points lies:
i) (6,2)
ii) (0,7)
iii) (-2,-6)
iv) (3,-5)

16. 1) Plot the following points on the graph sheet:
i) A(2,3) ii) B(0,6)
2) Plot the points and draw a line through the points:
i) (2,7) (-2,-3) ii) (-5,-3) (5,1)