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Zhang, Jianwei; Scardamalia, Marlene; Reeve, Richard; Messina, Richard – Journal of the Learning Sciences, 2009
This article reports a design experiment conducted over three successive school years, with the teacher's goal of having his Grade 4 students assume increasing levels of collective responsibility for advancing their knowledge of optics. Classroom practices conducive to sustained knowledge building were co-constructed by the teacher and students,…
Descriptors: Optics, Educational Technology, Grade 4, Social Networks