I set my students to work today on a sorting activity for systems of linear equations. Systems is a review topic from Algebra I, but a topic that still gives many of them trouble. I gave the students this paper to cut apart: After a few minutes of cutting, I gave them this chart onto which they pasted the vocabulary and examples after solving the systems on the reverse of the paper. They ended up with a chart like this one. What worked well: The students were able to self-check because they knew there would be two of each type of system. Since there were 6 graphs, the students had a couple of opportunities to practice the solutions to each kind of system. What needs improvement: I should have labeled the systems and graphs with A-F prior to copying the sheets; I had the kids do the labels instead. The kids complained that the graph paper was too small, though most of them managed just fine. UPDATE 1/6/13: The files shown below are available for download as a pdf. I've marked the graphs and systems A-F as indicated above. Thanks for visiting!