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Beyond Predictions

by: Dennis W. Smithenry and Jenny Kim

By thinking about the concept of density and taking into account the research on children’s ideas about this concept, the authors were able to unpack the typical sink or float activity and realize that it has students unscientifically making comparisons between objects by changing two independent variables (mass and volume) at one time. With this realization, they were able to modify the activity so that students were making comparisons in which they were only changing one independent variable (mass). The end result went well beyond the common “prediction” objective found in the classic sink or float activity.

Level

Elementary School

Details

Type Journal ArticlePub Date 10/1/2010Stock # sc10_048_02_48Volume 048Issue 02

NSTA Press produces classroom-ready activities, hands-on approaches to inquiry, relevant professional development, the latest scientific education news and research, assessment and standards-based instruction.

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