The study of learning environments provides a useful research framework for investigating the effects of educational innovations such as those which are associated with the use of the Internet in classroom settings. This study reports an investigation into the use of Internet technologies in high-school classrooms in Australia and Canada. Specifically, it combined the investigation of the physical and psychosocial learning environments featured within these "technological settings", as well as interactions among the selected physical and psychosocial factors in influencing students' satisfaction with their learning in these settings. Further, we explored how both the physical and psychosocial domains can effectively enable or, alternatively, constrain the teaching methods used in these classrooms. We first explored the learning environment in these classrooms through the use of a questionnaire measuring aspects of the psychosocial learning environment together with ergonomic site evaluations. Next, we investigated interactions among physical and psychosocial variables in these classrooms through selected and detailed case studies, which included a more detailed assessment of the physical classroom environment in tandem with classroom observations and student/teacher interviews. The results offer insights into new approaches to technology implementation and teaching practice and call for teachers to take a leading role in classroom laboratory design. (Contains 6 tables and 1 figure.)