In this article we describe and illustrate an analytical perspective in which educational policies are viewed as designs for supporting learning. From the learning design perspective, a policy comprises 3 components that we term the what, how, and "why of policy": the goals for the learning of members of the group targeted by the policy, the…

This article focuses on 3 conceptual challenges that we sought to address while conducting a design experiment in which we supported the learning of a group of middle school mathematics teachers. These challenges involved (a) situating teachers' activity in the institutional setting of the schools and district in which they worked, (b) developing…

The motivation for this article is our belief that theory is critically important but currently underplayed in design research studies. We seek to characterize and illustrate a genre of theorizing that seems to us strongly synergistic with design-based research. We begin by drawing contrasts with kinds of theory that are relevant but, we contend,…

Analyzes two classroom episodes using a classroom mathematical practice together with students' diverse ways of contributing to its continual regeneration as the unit of analysis. Asserts that a classroom mathematical practice is composed of three interrelated types of norms: a normative purpose, normative standards of argumentation, and normative…

Describes a methodology for analyzing the collective learning of the classroom community in terms of the evolution of classroom mathematical practices. In developing the rationale for this approach, grounds the discussion in work of mathematics educators who conduct classroom-based design research. Frames sample analysis as a paradigm case in…