This introductory tutorial about statistical graphing with four examples of how pie charts (circle graphs) are constructed and read.

Create and customize a bar graph, line graph, or pie chart based on a set of data and print it out.

Get the definition for a bar graph. Then, select the link "here's more" and use the interactive graph to display data as a bar graph, line graph or pie chart. The finished graph may be printed.

This tutorial provides definitions and examples of ratios and proportions and features comparing ratios and converting rates.

[Free Registration/Login Required] Students are asked to figure out the size of the shaded portions of a circle graph. They then complete a chart showing the fraction, decimal, and percentage equivalents.

An interdisciplinary math, science, and language arts lesson that engages students in an exploration of statistics. Through a study of various forest climates, students utilize data collection and analysis, classification, and graphing....

This U.S. Geological Survey website explains a variety of uses for saline water. Pie graphs and bar graphs are used to illustrate the various uses. Click Home to access the site in Spanish.

Learn about the diversity of species on Earth by exploring a cladogram, a graph-like tree of life that illustrates relatedness among species. Includes instructions for reading cladograms and a pie chart that summarizes the percentages of...