Several studies have analysed and assessed online performance and discourse using quantitative and qualitative methods. Quantitative measures have typically included the analysis of participation rates and learning outcomes in terms of grades. Qualitative measures of postings, discussions and context features aim to give insights into the nature…

One of the great strengths of Jim Kaput's research program was his relentless drive towards scaling up his innovative approach to teaching the mathematics of change and variation. The SimCalc mission, "democratizing access to the mathematics of change," was enacted by deliberate efforts to reach an increasing number of teachers and students each…

This paper argues that formative evaluation of instruction, which is generally agreed to be critical for instruction in any medium, is even more crucial when the instruction is to be delivered by interactive technologies such as computers, interactive video, hypermedia, or the various forms of interactive multimedia systems. It begins by…