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Direct linkDelgado, Cesar; Lucero, Margaret M. – Journal of Research in Science Teaching, 2015
Graphing is a fundamental part of the scientific process. Scales are key but little-studied components of graphs. Adopting a resources-based framework of cognitive structure, we identify the potential intuitive resources that six undergraduates of diverse majors and years at a public US research university activated when constructing scales, and…
Descriptors: Graphs, Scaling, Undergraduate Students, Majors (Students)
Opfer, John E.; Nehm, Ross H.; Ha, Minsu – Journal of Research in Science Teaching, 2012
To improve assessments of academic achievement, test developers have been urged to use an "assessment triangle" that starts with research-based models of cognition and learning [NRC (2001) "Knowing what students know: The science and design of educational assessment." Washington, DC: National Academy Press]. This approach has been successful in…
Descriptors: Science Tests, Evolution, Biology, Test Construction
Lopez, Enrique J.; Shavelson, Richard J.; Nandagopal, Kiruthiga; Szu, Evan; Penn, John – Journal of Research in Science Teaching, 2014
Chemistry courses remain a challenge for many undergraduate students. In particular, first-semester organic chemistry has been labeled as a gatekeeper with high attrition rates, especially among students of color. Our study examines a key factor related to conceptual understanding in science and predictive of course outcomes-knowledge structures.…
Descriptors: College Freshmen, Introductory Courses, College Science, Organic Chemistry
