National Center for Ecological Analysis and Synthesis, University of California Santa Barbara
Nceas: Graph Types
At this site from NCEAS you can learn how to organize your data into pie graphs, bar graphs, and line graphs. Explanations and examples are given of each graph along with several questions that check comprehension.
Math Is Fun
Math Is Fun: Definition of Bar Graph
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.
The Franklin Institute
Frankin Institute Online: Group Graphing
This site from The Franklin Institute explores how to make a simple graph using a spreadsheet to portray survey data. It also gives a set of interesting sports-related web sites so that students can get statistical inforamtion.
Math Is Fun
Math Is Fun: Data Graphs
Create and customize a bar graph, line graph, or pie chart based on a set of data and print it out.
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.
PBS
Pbs: Mathline Creature Feature Lesson Plan [Pdf]
An interdisciplinary math, science, and language arts lesson plan that engages students in an exploration of statistics. Through a study of various forest climates, students utilize data collection and analysis, classification, and...
The Math League
The Math League: Ratio and Proportion
This tutorial provides definitions and examples of ratios and proportions and features comparing ratios and converting rates.