Using content and process scaffolds to support collaborative discourse in asynchronous learning networks

Discourse, a form of collaborative learning [44], is one of the most widely used methods of teaching and learning in the online environment. Particularly in large courses, discourse needs to be "structured" to be effective. This in-progress study investigates how to "scaffold" asynchronous discourse based on the Asynchronous Learning Networks Cognitive Discourse Model (ALNCDM). The ALNCDM is an adaptation of Clark and Brennan's [5] grounding in communications principles within a technology- mediated learning (TML) environment. The model applies content and process scaffolding based on pedagogic principles. The study is a 2 X 2 design measuring learning effectiveness. Results of a pilot study are described. A major contribution of the study is building and testing a technology-mediated, discourse-centered, teaching and learning model called the ALNCDM.