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Download full textWhat Works Clearinghouse, 2012
The study reviewed in this paper examined three separate methods for teaching the "control of variables strategy" ("CVS"), a procedure for conducting a science experiment so that only one variable is tested and all others are held constant, or "controlled." The study analyzed data from a randomized controlled trial of…
Descriptors: Science Experiments, Scientific Methodology, Teaching Methods, Science Process Skills
National Center for Education Statistics, 2012
Science education is not just about learning facts in a classroom--it's about doing activities where students put their understanding of science principles into action. That's why two unique types of activity-based tasks were administered as part of the 2009 National Assessment of Educational Progress (NAEP) science assessment. In addition to the…
Descriptors: Investigations, Student Evaluation, Science Tests, National Competency Tests
