... 22. Investigate the potential benefits of collaborative learning in the classroom and the design challenges that it imposes. Outside the classroom, much learning and problem solving takes place as individuals engage with each other, ... of those with skills and expertise, and use resources and tools that are available in the surrounding environment. The benefits of this "distributed cognition" are tapped inside the classroom when students ... collaboratively on problems or projects, learning from each others' insights, and clarifying their own thinking through articulation and argument (Vye et al., 1998a). Some research indicates that group problem solving is superior to individual problem solving (e.g., Evans 1989; ... and Evans, 1995), and that developmental changes in cognition can be generated from peer argumentation (Goldman, 1994; Habermas, 1990; Kuhn, 1991; Moshman, 1995a, 1995b; ... and Zeitz, 1995; Youniss and Damon, 1992), and peer interaction (Dimant and Bearison, 1991, Kobayashi, 1994). For these reasons, the community-centered classroom described in Chapter 2, in which students learn from each other,...