"Though concept maps can take many forms, they commonly include both ‘nodes’ (concepts) and ‘arcs’ (linking lines denoting relationships)... Concept maps are great for exploring what knowledge students are bringing to your class. ...[T]ry asking your students to create concept maps on one or more... topics. Then review these for patterns in how the students are depicting the topics (are they missing key connections to other ideas? Are they drawing erroneous relationships?), and make changes to your lesson plans accordingly."