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Curtis, Anthony D. – American Biology Teacher, 2010
I describe three activities that allow students to explore the ideas of evolution, natural selection, extinction, mass extinction, and rates of evolutionary change by engaging a simple model using paper, pens, chalk, and a chalkboard. As a culminating activity that supports expository writing in the sciences, the students write an essay on mass…
Descriptors: Expository Writing, Biology, Science Instruction, Evolution