This paper aims to contribute to the growing field of research on teaching practices in higher education, with a focus on the prevalent yet unresearched practice of concept introduction in lectures. This small-scale case-study provides data which lend themselves to a comparative analysis, with a view to describing and accounting for the dispersion…

This paper reports on a study about how the mathematics textbook was perceived and used by the teacher in the context of a calculus part of a basic mathematics course for first-year engineering students. The focus was on the teacher's choices and the use of definitions, examples and exercises in a sequence of lectures introducing the derivative…

A group of mathematicians and mathematics educators are collaborating in the fine-grained examination of selected "slices" of video recordings of lectures, drawing on Schoenfeld's Resources, Orientations and Goals framework of teaching-in-context. In the larger project, we are exploring ways in which this model can be extended to examine…