Students should be given background information on the experiment and a brief demonstration on how to interpret figures, with particular emphasis on understanding the axes and legends. For this exercise, students should be given several minutes to answer the questions individually. Then ask the students to pair up and compare their interpretations with their neighbor. If they find differences, ask them to come to a consensus and then together they should make a general statement about how herbivory impacts the fitness of individual plants.
Student assessment: One minute paper
For assessment, ask students to turn in a one-minute paper with their answers to the above questions or randomly choose a pair of students (or several) to explain portions of the figure aloud to the class.