Proportional Reasoning: A Valid Instrument to Survey Understanding

Details Proportional Reasoning: A Valid Instrument to Survey Understanding Proportional Reasoning: A Valid Instrument to Survey Understanding

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...20920922s&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #209.22; Bulletin of the American Astronomical Society,

Physics

Scientific paper

Proportional reasoning is the ability to use rates, ratios, fractions, and proportions. Students need the ability to reason proportionally in order to do well in high school and college physics courses. Since beginning research in this topic in 2000, conducting interviews, writing two-tiered tests, and many discussions on this topic, an instrument has been developed that offers a valid survey of student understanding. This allows the instructor to easily identify students in need of extra help and explanation. The final form is multiple-choice and uses detractors based on actual student responses and covers multiple ways of understanding and misunderstanding proportions. The basic questions are based on problems published in this research area.

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