Students use their number sense to make observations and come up with reasonable guesses or explanations for the patterns shown. Forked version with all infectious disease graphs.

Used in an Integrated Biological Principles II Class (Intro to Ecology/Evolution/Physiology) at University of Richmond.  

Each figure is presented as a pair of slides, the first with all axis labels and legends removed, and the second as the original figure. Students are asked to make observations about the unlabeled version and guess what pattern is represented.

Figures are roughly ordered by difficulty, and are intended to be incorporated one at a time into different class meetings over the course of the semester. The notes section for each figure gives some ideas for potential student responses or interesting features of the graphs.