Shodor Education Foundation
Shodor Interactivate: Lesson: Bar Graph
This lesson is designed to give students practice creating and reading bar graphs as well as understanding how to accurately represent a graph with appropriate units.
Khan Academy
Khan Academy: Read Bar Graphs and Solve 2 Step Problems
Read and interpret a double bar graphs. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints. CCSS.Math.Content.3.MD.B.3 Draw a scaled picture graph and a scaled bar...
Rice University
Rice University: Cynthia Lanius: Let's Graph
An introduction to bar graphs, both vertical and horizontal in nature. The interactive aspect of this site allows students to change the values of the data - their favorite cafeteria foods - and then see how the graph is changed.
Texas A&M University
Wtamu Virtual Math Lab: Beginning Algebra: Reading Graphs
A good introduction to reading bar, line, and double line graphs, and drawing and reading Venn diagrams. Contains definitions and examples of these types of charts and graphs as well as practice exercises that ask you to answer questions...