The Concept Comparison Chart is an excellent teaching tool to differentiate instruction for disabled and non-disabled students. This routine goes beyond a typical Venn Diagram. Students are provided an opportunity to dig deeper and develop a better understanding of a topic. I worked with my general education science partner to investigate the 3 different rock groups: Igneous, Sedimentary, and Metamorphic. We would use the chart as a pre-activity to the start of the rock unit. Then, we would build on it through out the unit. Eventually, the chart would be used to review for the unit test.