Didactic suitability criteria that emerge in the future teachers’ practical argumentation ; Critérios de adequação didática emergentes na argumentação prática de futuros pedagogos

The aim of the article is to analyse which didactic suitability criteria that emerge in the practical argumentation of future teachers who participated in a Lesson Study cycle, in which they planned a lesson on plane geometry for pupils in Early Childhood Education. The cycle sessions were recorded by video and two of them were analysed, firstly, with the Pragma-dialectic and Toulmin models, and secondly, with the didactic suitability criteria. As a result, it is observed that the practical arguments of future teachers for choosing the manipulative material to be used point to the use of logical blocks and that the criteria that support them are based, mainly, on the media criterium, followed by the epistemic one. It was also observed that the participants' consensus on the dynamics of the lesson is that it should begin with the exploration of the logical blocks, followed by the elaboration, recording and exhibition of artworks and that the criteria supporting this decision-making are related, respectively, to the interaction, ecological and affective criteria. This study provides a tool to show, in detail, the structure of practical arguments and the important role of didactic suitability criteria in the didactical decision-making of a group of prospective teachers. ; O artigo tem como objetivo analisar quais são os critérios de adequação didática emergentes na argumentação prática de futuros pedagogos, participantes de um ciclo de Lesson Study, ao planejarem uma aula sobre geometria plana para alunos da Educação Infantil. As sessões do ciclo foram vídeo-gravadas e duas delas foram analisadas, primeiro, com os modelos da Pragma-dialética e de Toulmin e, segundo, com os critérios de adequação didática. Como resultado, observa-se que os argumentos práticos dos futuros pedagogos para a escolha do material manipulativo a ser utilizado apontam para o uso de blocos lógicos e que os critérios que o sustentam baseiam-se, em maior medida, no de meios, seguido do epistêmico. Também, observa-se que o consenso dos ...