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...
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...