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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
Freer, Benjamin D.; Lorch, Elizabeth P.; Lorch, Robert F., Jr.; Calderhead, William – Society for Research on Educational Effectiveness, 2011
A crucial element of the logic of the scientific method is the Control of Variables Strategy (CVS), in which conclusions about causal relations are enabled by manipulating a focal variable of interest while holding all other variables constant. Understanding CVS in elementary grades generally is poor, but can be improved with systematic…
Descriptors: Direct Instruction, Intervention, Student Reaction, Scientific Methodology
Direct linkChaiyapechara, S.; Dong, F. M. – Journal of Food Science Education, 2004
A science content course in food chemistry was offered as a 4-day summer workshop from 1999 to 2001 to 4th grade school teachers in the Seattle School District. The objectives of the workshop were to increase the teachers' knowledge of food science, to perform simple experiments that could be used in the 4th grade classroom, and to help the…
Descriptors: Scientific Methodology, Chemistry, Grade 4, Elementary School Teachers
