Reading and Interpreting Bar Graphs for 4th Grade
To read a bar graph, check the scale before reading any bar, because the interval between gridlines decides every value you take off it. The examples below cover single and double bar graphs, with practice problems and a full answer key.
DETAILED EXPLANATION
A bar graph uses bars to show data. The height or length of each bar represents a value. We read and compare bars to answer questions about the data.
WORKED EXAMPLES WITH STEP BY STEP SOLUTIONS
Example 1
In a bar graph, the bar for ‘red’ is 8 units tall and the bar for ‘blue’ is 5 units tall. Which color has more?
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Solutions:
Step 1: Apply the concept from the lesson above.
Step 2: Carry out the operation or reasoning.
Answer: Red has more (8 > 5).
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