In this paper we focus on variation of the design and the implementation of a specific task during three mathematics lessons in the 8th grade in a learning study (Marton & Tsui, 2004; Runesson, 2008). The theme of the lesson was division, with a denominator between 0 and 1. The teachers wanted their students to understand that when dividing…

This paper argues that research findings from the study of teaching could be very useful in enhancing knowledge and tools for the design of both conventional and intelligent instructional software. It also suggests that if the ways in which teachers effectively conduct instruction are different and in certain ways better than other media, and if…

Beginning with general observations on the human element in excellent teaching that often goes unnoticed by researchers, this speaker provides a wide range of suggestions for making more effective use of class time. These suggestions pertain to monitoring time on and off task, classroom organization and planning, making assignments, clarifying…