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This paper proposes a platform model to support teachers' professional development in a Web 2.0 approach. The goal is to enable teachers to describe their practice and exchange on it with other members of the community, allowing teachers to construct and improve their own practice by analyzing different existing practices. For the practice elicitation we use a task/method paradigm and a continuous process driven by the exchanges between users (asking for more details or particular cases). Those practices are then capitalized into individual memories. This process is based on the exchanges through the community which supposes a good matching process between members. In this way we manage a professional profile of each member favoring exchanges and knowledge dissemination (pushing the right knowledge to the right person).

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Abstract. The first years in a teacher's career are known to be very hard. In fact, know-how, resulting from experience, is rather poor. And at the same time, there are seeds of know-how distributed in each experienced teacher and constituting a real gold mine. Finding the means of transferring this know-how constitutes a challenge for the knowledge society. We propose here a solution based on a know-how capitalization using both a knowledge base and a case base. Know-how is collected from a large number of experts, using collection scenarii. In addition, as it's impossible to collect all know-how, problems encountered by novices are discussed with selected experts and, when solutions are found, the cases are stored in a case base.

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