The problem I have with some infographics is that they present statistics or statements taken out of context. Some infographics include links to their sources and others do not. I think that a good exercise in research for students could be to investigate the statements and statistics presented on infographics. In the process of doing that our students might begin to see how an individual or organization can skew a story depending upon which statements or statistics they take out of context. Of course, as an exercise in identifying bias you can have students investigate the organization publishing a particular infographic.
For the inverse of what I'm proposing, see Kathy Schrock's Infographics as a Creative Assessment.
What do you think about infographics? Are they useful for classrooms or not?