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|Title:||Units of length: A notational system for conceptual understanding of size and scale|
|Publisher:||International Society of the Learning Sciences (ISLS)|
|Citation:||Delgado, C. (2010). Units of length: A notational system for conceptual understanding of size and scale. In Gomez, K., Lyons, L., & Radinsky, J. (Eds.), Learning in the Disciplines: Proceedings of the 9th International Conference of the Learning Sciences (ICLS 2010) - Volume 2, Short Papers, Symposia, and Selected Abstracts (pp. 362-363). Chicago IL: International Society of the Learning Sciences.|
|Abstract:||A cross-sectional study (101 grade 6-14 students) and teaching experiment (24 grade 6-8 students) suggest measurement units are important in conceptual understanding of size and scale. Students were significantly better at absolute size than relative size estimation after the teaching experiment. Students appear to off-load the requirement for fractions or decimals onto the notational system of measurement units. A planned cross-cultural study will indicate likely improvements if US students had greater schooling in metric units.|
|Appears in Collections:||ICLS 2010|
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