cognitively challenging tasks where computers are tools to promote communicating, thinking, producing, and presenting ideas. Data on software use and objectives for computer use suggest that these teachers recognise the features of technology that grant students access to a broader community and knowledge base beyond the walls of the classroom. They are able to incorporate the use of computers into student activity more effectively than teachers who fail to participate in their professional community. Such teachers are more likely to focus on traditional methods of delivery of information, on direct instruction. They do not place a high value on collaborative knowledge building in the classroom or for themselves in the educational community. The role of the student is to listen, learn and repeat. Becker & Riel concluded that those teachers extensively involved in professional activities are in a position, with sufficient authority and time, to help other teachers move towards being more accomplished users of computer technology. Carney (1998) examined a teacher development programme, STDC (the Shortline Teacher Development Centre), aimed at integrating technology into the constructivist classroom. Carney further explored whether several factors common to exemplary computer-using teachers are addressed in the setting. Analysis is focused on the four elements deemed crucial for effective teacher learning: o Challenges to frames of reference. To generate new responses, professionals must be placed in situations of uncertainty. Three forces seem to be creating these conditions of uncertainty: technology, new teaching contexts and converging reforms. The need to integrate technology is the most powerful of the three in challenging familiar practice and knowledge. o Situated learning. The notion of situated cognition (Brown et al, 1989) is a basic cognitive principle of constructivist theory. In the STDC, teachers are able to see operational illustrations of constructivism supported by technology in classrooms. They are able to have direct experience with new practice of technology integration. o Collaborative reflection; this is where teachers should work in collaborative relationships with colleagues as ‘… collaborative reflection groups can provide both the direction for individual change efforts …’ (Hasseler & Collins, 1993, p. 11). The STDC recognises the importance of teacher reflection in its basic objectives and provides collaborative contexts through regular structured discussion as well as informal sharing. o Long-term collegial interaction; the learning gained by individual teachers is not likely to be translated into reformed practice without long- term collegial interaction. Collaborative support greatly increases the likelihood that changes in practice will be sustained. The STDC provides a basis for collegial support by encouraging teachers to continue their interactions beyond the program through personal contact and email,