National Center for Ecological Analysis and Synthesis, University of California Santa Barbara
Ucsb / Pie Graphs (Piece of Cake)
This page gives an example and easy-to-understand description of a pie graph (circle graph.) Also provides an opportunity for students to test their abilities to read a pie graph.
Primary Resources
Primary Resources: Line Graphs and Pie Charts
Here are a few resources to use with your students when teaching about line graphs or pie charts.
Texas Education Agency
Texas Gateway: Analyze Graphical Sources: Practice 2 (English I Reading)
You will look at each of these types of graphs: bar graph, line graph, pie charts, as you work your way through the lesson.
The Math League
The Math League: Using Data and Statistics: Pie Charts
This introductory tutorial about statistical graphing with four examples of how pie charts (circle graphs) are constructed and read.