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What Students Learn from Hands-On Activities
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Schwichow, Martin; Zimmerman, Corinne; Croker, Steve; Härtig, Hendrik – Journal of Research in Science Teaching, 2016
The ability to design and interpret controlled experiments is an important scientific process skill and a common objective of science standards. Numerous intervention studies have investigated how the control-of-variables-strategy (CVS) can be introduced to students. However, a meta-analysis of 72 intervention studies found that the opportunity to…
Descriptors: Science Experiments, Scientific Methodology, Teaching Methods, Science Process Skills
The Impact of Sub-Skills and Item Content on Students' Skills with Regard to the Control-of-Variables Strategy
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Schwichow, Martin; Christoph, Simon; Boone, William J.; Härtig, Hendrik – International Journal of Science Education, 2016
The so-called control-of-variables strategy (CVS) incorporates the important scientific reasoning skills of designing controlled experiments and interpreting experimental outcomes. As CVS is a prominent component of science standards appropriate assessment instruments are required to measure these scientific reasoning skills and to evaluate the…
Descriptors: Thinking Skills, Science Instruction, Science Experiments, Science Tests