Document cameras can be used for several educational activities including categorizing concepts, comparing and contrasting ideas, creating timelines, active reading where students annotate directly in textbooks, jigsaw note-taking where students collaboratively complete notes, labeling maps by adding words and drawings, modeling processes, and citing sources for lessons as described in the book "Show Me Great Lessons by Karina Clemmons, Ed. D." which discusses the top 7 ways to use document cameras in the classroom.