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Direct linkWilcox, Bethany R.; Pollock, Steven J. – Physical Review Special Topics - Physics Education Research, 2015
The Dirac delta function is a standard mathematical tool that appears repeatedly in the undergraduate physics curriculum in multiple topical areas including electrostatics, and quantum mechanics. While Dirac delta functions are often introduced in order to simplify a problem mathematically, students still struggle to manipulate and interpret them.…
Descriptors: Science Instruction, Undergraduate Study, College Science, Physics
Wallace, Colin S. – ProQuest LLC, 2011
This study reports the results of the first systematic investigation into Astro 101 students' conceptual and reasoning difficulties with cosmology. We developed four surveys with which we measured students' conceptual knowledge of the Big Bang, the expansion and evolution of the universe, and the evidence for dark matter. Our classical test theory…
Descriptors: Learning Problems, Astronomy, College Students, Lecture Method
