Two learning trajectories

Abstract

In design research instructional design and research are interrelated, “the design of classroom learning environment serves as the context for research and, conversely, ongoing and retroactive analyses are conducted in order to inform the improvement of design” (Cobb et al., 2011, p. 75). The design of mathematical tasks or learning sequences of exercise and their analysis is a central component of research in mathematics education and ties together learning trajectories and design research.