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Deon T. Miles – Journal of Chemical Education, 2023
Students in a typical instrumental analysis course may learn more than 30 analytical techniques. There are more than 150 components associated with the instrumentation that they learn. To help students organize this large amount of information, we classified these components into four categories: sources, samples, discriminators, and detectors. In…
Descriptors: Pictorial Stimuli, Science Instruction, Teaching Methods, Science Education
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Martínez, José Manuel; Ramírez, Laura – Teaching Children Mathematics, 2018
When the focus of instruction is on learning to use mathematical tools--such as a ruler or a calculator--as a procedure, students tend not to incorporate their own mathematical reasoning. This unreflective use of tools hinders students' questioning of the reasonableness of their answers. This article describes how children expressed their…
Descriptors: Geometric Concepts, Geometry, Mathematics Instruction, Measurement Equipment
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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