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Key
Idea
Bar
graphs
compare
data. A
double
bar graph
compares
two sets
of
similar data. |
Bar
Graphs |
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How
do you read a bar graph? |
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A bar
graph uses bars to show data that
can be counted. A double
bar graph
uses two different-colored or shaded bars
to compare two similar sets of data that
can be counted. |
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The graph below
shows years of
participation for four different schools
in a local tennis tournament. |
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Vocabulary
•
bar graph
•
double bar graph
•
scale
•
axis (pl. axes)
•
interval
Materials
•
grid paper |
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Talk About It |
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1. Of the schools represented on the graph,
which school
played
in the most semi-final matches? Which colored
bar did you look at
to decide your answer? Why? |
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2.
Which school played in the most final matches? How
many more final matches
did that school play in than
the
school which played in the least final matches? |
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3.
Representations
Is it possible to show the same
information
on a single bar graph? Why or why not? |
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