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Maria Al Dehaybes; Johan Deprez; Paul van Kampen; Mieke De Cock – Physical Review Physics Education Research, 2025
This study investigated how students reason about the partial derivative and the directional derivative of a multivariable function at a given point, using different graphical representations for the function in the problem statement. Questions were formulated to be as isomorphic as possible in both mathematics and physics contexts and were given…
Descriptors: Physics, Calculus, Graphs, Abstract Reasoning