Reading a Graph

Mike Ruth

Pie Graph

A pie graph is a circular figure that is broken up into portions that look like slices of pie called sectors. These sectors are used to display relative sizes of data. It is a visually easy way to identify the highest results and lowest results.


Image: http://www.webquest.hawaii.edu/kahihi/mathdictionary/C/circlegraph.php

Bar Graph

A bar graph is a visual that uses different size bars to provide a visual of different data results. It's purpose is the same as a pie graph, but the results are listed as numerals, not percent of a whole.


Image: http://getwordwall.com/help/wiki/99/bar-graph

Line Graph

A line graph shows information that is connected, like distance over time.


Image: http://www.mathgoodies.com/lessons/graphs/line.html

How to read a graph...

This is a lesson made by Khan Academy. Explore around and watch videos on different graphs, what kind of data they use, and when you would use each graph type.


https://www.khanacademy.org/math/pre-algebra/applying-math-reasoning-topic/reading_data/v/u08-l1-t2-we2-reading-line-graphs