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A Over the past fifteen years various studies have addressed whether, when and how peer interaction facilitates children's cognitive development. One of the tasks long favoured by cognitive psychologists who are interested in problem solving is the "Tower of Hanoi". This is usually presented in the form of a board with three vertical pegs in it; over one peg is slipped a number of different-sized tiles, with the largest at the bottom and the smallest at the top, so that they form a pagoda-shaped stack (see Figure 1). The task is to dismantle the "pagoda" and re-form it on one of the other pegs, but with the constraints that only one tile can be moved at a time, and that a larger tile may never be placed on a smaller one. With three tiles, the problem is soluble in a minimum of seven moves.
Peer Interaction and Problem
Solving
A Over the past fifteen years various studies have addressed whether, when and how peer interaction facilitates children's cognitive development. One of the tasks long favoured by cognitive psychologists who are interested in problem solving is the "Tower of Hanoi". This is usually presented in the form of a board with three vertical pegs in it; over one peg is slipped a number of different-sized tiles, with the largest at the bottom and the smallest at the top, so that they form a pagoda-shaped stack (see Figure 1). The task is to dismantle the "pagoda" and re-form it on one of the other pegs, but with the constraints that only one tile can be moved at a time, and that a larger tile may never be placed on a smaller one. With three tiles, the problem is soluble in a minimum of seven moves.
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an explanation as to why one experiment focused on children's conversation
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a description of how a conventional problem-solving task was modified
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an attempt to reconcile conflicting research findings
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a description of the equipment used in a popular experiment
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challenges to claims about the significant role of disagreement