Reinventing the concepts of group and isomorphism: The case of Jessica and Sandra

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An Inquiry-Oriented Approach to Span and Linear Independence: The Case of the Magic Carpet Ride Sequence (2012, background): “RME-inspired instruction is being adapted to the undergraduate curriculum in a number of content areas, including differential equations [17], geometry [29], abstract algebra [12, 13], and calculus [16, 24].”
A hypothetical learning trajectory for conceptualizing matrices as linear transformations (2017, background): “The products of classroom teaching experiments often include both theoretical advances [8] as well as empirically grounded instructional innovations [3,9,10].”
A local instructional theory for the guided reinvention of the group and isomorphism concepts (2013, methodology): “4 For a detailed description of the reinvention process that unfolded during the first three design experiments and a discussion of how the initial LIT emerged as a result of these experiments, see Larsen (2009) or Larsen (2004).”