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Lausch, Rabecca; Ross, Danielle K. – Science Teacher, 2019
Understanding natural selection and adaptation are important precursors to learning evolution (NGSS Lead States 2013), the central unifying principle of biology. This lesson sequence, guided by the Five Practices Model (Cartier et al. 2013), incorporates data described by Andersson (1982) that details female choice in a population that eventually…
Descriptors: Scientific Concepts, Science Instruction, Discussion (Teaching Technique), Evolution
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Goh, N. K.; And Others – Journal of Chemical Education, 1989
Provided is a model to depict how the development of process skills can be systematically achieved and in turn determine the students' achievement in science practicals. Modified laboratory instruction is compared with conventional laboratory instruction. The results of field testing on 164 ninth grade subjects are described. (MVL)
Descriptors: Chemistry, Grade 9, Instructional Effectiveness, Laboratories