![File:Third Generation CHAT.jpg](http://upload.wikimedia.org/wikipedia/commons/thumb/5/51/Third_Generation_CHAT.jpg/800px-Third_Generation_CHAT.jpg)
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current | 13:52, 19 January 2015 | ![]() | 3,385 × 2,318 (398 KB) | Pronacampo9 | {{Information |Description ={{en|1=A representation of Third Generation CHAT: collective activity, mediational means, division of labor (Dialogue and multiple perspectives – Expansive Learning) - following Engeström, 1987 (http://lchc.ucsd.edu/mc... |
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