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Dickson-Karn, Nicole M. – Journal of Chemical Education, 2017
A multi-instrument approach has been applied to the efficient identification of polymers in an upper-division undergraduate instrumental analysis laboratory course. Attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR) is used in conjunction with differential scanning calorimetry (DSC) to identify 18 polymer samples and…
Descriptors: Laboratory Experiments, Undergraduate Study, Molecular Structure, Qualitative Research
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Olivero, Federica; Robutti, Ornella – International Journal of Computers for Mathematical Learning, 2007
This paper sits within the research on the affordances of new technologies in the mathematics classroom and focuses on a specific feature that is available in dynamic geometry environments, i.e. measuring tools, within the context of conjecturing and proving in open geometry problems. We develop a classification of different modalities of…
Descriptors: Classification, Cognitive Processes, Geometry, Instrumentation