Contemporary curriculum demands the development of both problem solving skills and negotiative skills required for collaborative group work. Tasks are required that create the best possible conditions for students to develop both of these skill sets. Open-ended tasks have been shown to provide these conditions, but they also require the teacher to…

There is an increasing acceptance in the education literature and in classroom settings for "best practice" to be linked with verbal clarification of knowledge and reasoning, ideally in collaborative contexts where students construct both group and individual knowledge. Problem-based learning (PBL) is one such classroom context in which…

Implementation of a problem-based mathematics curriculum, the "Interactive Mathematics Program" (IMP), at three high schools in California has been associated with more than just differences in student achievement. The outcomes that distinguished students who participated in the IMP program from students who followed a conventional…