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Prilliman, Stephen G. – Journal of Chemical Education, 2014
The College Board's recently revised curriculum for advanced placement (AP) chemistry places a strong emphasis on conceptual understanding, including representations of particle phenomena. This change in emphasis is informed by years of research showing that students could perform algorithmic calculations but not explain those calculations…
Descriptors: Science Instruction, Secondary School Science, High Schools, College Science
Paige, Robert – International Journal for Technology in Mathematics Education, 2007
Calculators used widely by students, teachers, scientists, engineers and many others provide an interesting case study of a compelling technology that has helped change the way many professionals work. They not only help in enhancing problem solving skills of most individuals, but also help visualise solutions to problems in a better way. Research…
Descriptors: Undergraduate Students, Chemistry, Concept Formation, Statistical Analysis

Hawkes, Stephen J. – Journal of Chemical Education, 1998
Argues that consideration should be given to whether teaching solubility product calculations is at all useful. Claims that experienced teachers seriously misunderstand and misuse solubility product calculations. (DDR)
Descriptors: Chemical Equilibrium, Chemical Reactions, Chemistry, Cognitive Processes
Schmidt, Hans-Jurgen – 1992
The purpose of this descriptive study was to create and test questions on stoichiometry with number ratios for quick mental calculations and to identify students' problem-solving strategies. The present study was a component of a more comprehensive investigation in which 7,441 German senior high school students were asked to work on 154 test items…
Descriptors: Chemistry, Cognitive Style, Computation, Concept Formation