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Peer reviewedBarufaldi, James P.; Dietz, Maureen A. – Journal of Research in Science Teaching, 1975
A sample of 228 elementary school children in a large eastern city was administered tasks which tested visual perceptions of solid objects, and photographs and drawings of these objects. Results showed that children in grades one, four, and six demonstrate a tendency to perform more efficiently on observation and comparison tasks employing solid…
Descriptors: Developmental Tasks, Educational Research, Elementary Education, Elementary School Science
Rowland, Stephen – Outlook, 1978
Using a pegboard and different colored pegs, students were able to visualize mathematical concepts, generate and solve problems, and test hypotheses. Illustrations included. (MA)
Descriptors: Developmental Tasks, Elementary Education, Instructional Materials, Learning Activities
