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Bell, Randy L.; Matkins, Juanita Jo; Gansneder, Bruce M. – Journal of Research in Science Teaching, 2011
This mixed-methods investigation compared the relative impacts of instructional approach and context of nature of science instruction on preservice elementary teachers' understandings. The sample consisted of 75 preservice teachers enrolled in four sections of an elementary science methods course. Independent variables included instructional…
Descriptors: Investigations, Control Groups, Preservice Teachers, Elementary School Science
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Howard, David R.; Herr, Julie; Hollister, Rhiannon – American Biology Teacher, 2006
Trypsin and soybean trypsin inhibitor (Kunitz inhibitor) can be used in a relatively simple and inexpensive student exercise to demonstrate the usefulness of enzyme kinetics. The study of enzyme kinetics is essential to biology because enzymes play such a crucial role in the biochemical pathways of all living organisms. The data from enzyme…
Descriptors: Science Instruction, Biochemistry, Kinetics, Science Activities