This document provides information about bar graphs: - Bar graphs use bars of equal width to show frequencies of different classes or groups. They can show relationships between two or more items. - The key parts of a bar graph are the title, horizontal and vertical axes labeled with intervals, and bars whose heights represent recorded frequencies. - An example bar graph shows the favorite movie of 30 grade 7 students, with the most popular being at 25 students and the least being at 5 students.

9. MATH

10. WELCOMEMATH

11. BAR GRAPH

12. BAR GRAPH
It uses bars of different lengths and of
equal widths to show the frequencies
of the classes.
It is used to show relationships
between groups.
The two items being compared do
not need to affect each other.

13. Look at the way a bar chart is
constructed. Can you name its
different parts?
What goes here?
What is this
called?
What do we
call this?
What is this?

14. A bar graph always has a TITLE
Vertical axis (y).
Always labelled
and numbered
Horizontal axis (x).
Always labelled.
The height of the bars show
frequencies recorded.

15. 0
5
10
15
20
25
30
Favorite Movie of Grade 7
Can you read the answers? What does this
bar chart
show?
How many
students were
surveyed?
Which is the
favourite
movie?
Which is the
least liked?
What intervals
are used on
the y axis?
What intervals
could you use
if twice as
many students
were
Numberofstudents
Movie

16. How can you collect the
information needed to construct
a bar chart?
By making a
tally chart first!

17. Let’s Practice! Create a bar graph of
preferred TV station of Grade 7
students.
TV Station Number of
Students
ABS-CBN
GMA7
TV5

18. 0
5
10
15
20
25
30
ABS-CBN GMA7 TV5
Favorite Movie of Grade 7

19. Create a bar graph to represent the following
data
Group 1 – Favorite Subject of Grade 7 Students
(Filipino, English, Math, Science, AP, TLE, MAPEH)
Group 2 – Grade 7 Students’ Preferred Interest
Clubs (Drama, Dance, Glee, Culinary, Art)
Group 3 – Preferred Sport of Grade 7 Students
(tennis, swimming, basketball, volleyball,
football)
LET’S WORK TOGETHER!