LEFFA, Vilson J. Se mudo o mundo muda: oensino de linguas sob a perspectiva do emergentismo. In: Calidoscopio.Unisinos, 2009. p. 24-29.According to Leffa, emergent systems areall around us and they can be, for instance, climate and the traffic system,however, in language teaching, to work with an emergent system is to work withlanguage as a system in constant evolution that is composed by interactiveparts. The classroom is not an isolated place and students are not uninfluencedbeings. So, it is totally different from the traditional approach given tolanguage as something simple and static.Following the emergent approach theteacher will get better results and less extra work. Although working with thisconcept is much more challenging and will demand a more flexible andinteractive attitude from teachers, the results will be much more satisfactoryand students will understand that a foreign language is not somethingimpossible to be understood or learnt.Leffa also explains that Psycholinguisticsis part of an emergent system, in other words, Psycholinguistics studies areextremely helpful to understand the process of language acquisition and also tocomprehend how our brains work when they are receiving new information.As it was mentioned before, it is achallenge to work with such approach but, at the same time it, is the guaranteeof unexpected results.LEFFA, V. J. Aspectos politicos da formacaodo professor de linguas estrangeiras. In: LEFFA, Vilson J. (Org.). O professorde linguas estrangeiras; construindo a profissao. Pelotas, 2001, v. 1, p. 333-355.In this text, Leffa discusses the role offoreign language teachers as professionals that are able to touch students ontheir essence, in other words, a language teacher can change our opinions, canbring us a different world view and make us reflect about many different socialsituations as well. Another aspect discussed by Leffa is therequired conditions to have such a professional, many things are involved andthe most relevant on is to rule the knowledge concerning language andteaching approaches.Leffa clearly states the differencebetween treinamento and formacao. Two words easily mixed butthey have huge practical differences. To train a teacher is to show him/her howto use a certain material without making inferences just applying what is oneach page according to a determined timetable. One treinamento has an end while formacaohasnt. Formacao involvesconstant update, dedication and search for better ways of applying theories toour daily practice.And our practice involves politicalchoices and these choices will affect our students so, a teacher needs to beable to make their students think about each choice made, not based onsuperficial arguments but looking for reflection, critical thinking to promotethe growing of more committed social beings in the future. LEFFA, V. J. Aspectos politicos da formacao doprofessor de linguas estrangeiras. In: LEFFA, Vilson J. (Org.). Oprofessor de linguas estrangeiras; construindo a profissao. Pelotas,2001, v. 1, p. 333-355.Vilson Leffa aborda, com este artigo, o perfilque deve ser exigido dos professores de Lingua Estrangeira (LE). De acordo como autor, algumas caracteristicas importantes sao que os professores devem serreflexivos, criticos e comprometidos com a educacao. Acredito que estascaracteristicas sejam realmente necessarias para um professor de LE, pois um linguistadeve ter sempre um bom olhar critico diante dos fatos. Para ser uma pessoacritica, automaticamente deve-se se ter refletividade