This activity uses paper-folded frogs to demonstrate the concept of survival of the fittest or natural selection. Although the primary use of the frogs are for this particular lesson, a list of other uses are given in the packet. They can be used in English, Reading, Math and Science classes with a variety of grade levels.
The packet gives a page of step by step diagrams of how to make the frogs. There is also the lesson on using them as well as some suggestions on making the activity successful.