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T.i.P.S.

Students should use their previous knowledge of bar graphs and dot plots to solve problems based on data from these graphs involving percents. Circle graphs also known as pie graphs, are new form of graphs for seventh graders.

Example

Jimmy asked his friends in his lunch period what their favorite pizza toppings were. The graph shows these results.

What is the approximate difference in the percentage of people that liked pepperoni on their pizza and the percentage of people that only liked cheese pizza?

Hint
Possible Solution

Digital Tools

Click on the following links for interactive games.

Interpreting Circle Graphs

Creating Bar Graphs

Interpreting Bar Graphs

Interpreting Dot Plots

Creating Dot Plots

Creating & Interpreting Dot Plots with Fractions

Data Grapher

Circle Graphs with Fractions

Interpreting Dot Plots with 5 Data Points

Resources

Click on the following links for more information.

Bar Graphs

Circle Graphs

Dot Plots

TEKS

Readiness Standard

7.6 Proportionality. The student applies mathematical process standards to use probability and statistics to describe or solve problems involving proportional relationships. The student is expected to:

(G) solve problems using data represented in bar graphs, dot plots, and circle graphs, including part-to-whole and part-to-part comparisons and equivalents

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