This lesson demonstrates that scientific knowledge is stable, but also prone to change. Students will understand how those changes can happen in the context of the history of spontaneous generation. This lesson from the American Association for the Advancement of Science aligns with Benchmarks 1 and 10, Nature of Science, and History of Science. It can be done as a class or via student independent study. Part of the lesson involves students accessing related information on the Internet. Thorough teacher background information and pedagogically sound, structured discussion questions are provided.

Summary

Subject keyword(s)	Bacteria, Cell, Historical perspectives, History and nature of science, Inquiry learning, Life cycles, Life Science, Life science, Nature of science and technology, Reproduction, Science and technology, Scientific breakthroughs
Grade level	Middle School, High School, Vocational/Professional Development Education
Intended audience	Educator
Resource type	Instructional Material
Resource format	text, text/html
Rights	AAAS

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