Silva, Fátima2008-07-222011-10-062008-07-222011-10-062005Revista da Faculdade de Ciências Humanas e Sociais. Porto. ISSN 1646-0502. 2 (2005) 244-252.1646-0502http://hdl.handle.net/10284/666Collaborative learning in an ESP (English for Specific Purposes) undergraduate health setting, implies providing opportunities that allow the personal construction of knowledge. The teacher has to set appropriate contexts and objectives for the task and facilitate collaboration in the dyads or groups so that learners can reach their ZPD with peer collaboration. In a foreign language classroom, it is through task- related talking that learners can scaffold each other to complete the written task.articleengjournal article