bar graphs lesson 2-2. bar graphs a graph is a visual way to display data. a bar graph is used to...
TRANSCRIPT
Bar Graphs
Lesson 2-2
Bar Graphs
A graph is a visual way to display data.
A bar graph is used to compare data.
Make a Bar Graph…example
Make a bar graph of the data.
Compare the number of students in jazz class with the number in ballet class.
Steps to making a bar graph
Step 1 Decide on the scale and interval.
Step 2 Label the horizontal and vertical axes.
Step 3 Draw bars for each style.
Step 4 Label the graph with a title.
Decide on the scale and interval.
The largest amount to represent is 11 (ballet) and the smallest is 4(tap).
A good scale would be from 0 to 12.
A good interval to use would be 2.
12
10
8
6
4
2
0
Label the horizontal and vertical axes.
The interval numbers represent students.
Each bar will represent a style of dance lessons.
12
10
8
6
4
2
0
Stu
den
ts
Ballet Tap Jazz Modern
Style
Draw bars for each style.
Remember to make each bar the same width and equally spaced.
12
10
8
6
4
2
0S
tud
en
ts
Ballet Tap Jazz Modern
Style
Label the graph with a title.
12
10
8
6
4
2
0
Stu
den
ts
Ballet Tap Jazz Modern
Style
Dance Class Attendance12
10
8
6
4
2
0
Stu
den
ts
Ballet Tap Jazz Modern
Style
Use the graph to answer the question
Compare the number of students in jazz class with the number in ballet class.
About twice as many students take ballet as take jazz.
12
10
8
6
4
2
0
Stu
den
ts
Ballet Tap Jazz Modern
Style
Dance Class Attendance
Make a bar graph for the data.
Remember…
Scale & Interval
Label axes
Place bars
Title
Make a bar graph for the data.