Marcelino Júnior, Cristiano de Almeida Cardoso2017-04-192017-04-192014-02-28MARCELINO JÚNIOR, Cristiano de Almeida Cardoso. Desenvolvimento de um sistema didático para a formação da habilidade de explicar as propriedades dos isômeros, em licenciandos em química, na perspectiva da teoria de P.YA. Galperin. 2014. 317f. Tese (Doutorado em Educação) - Centro de Educação, Universidade Federal do Rio Grande do Norte, Natal, 2014.https://repositorio.ufrn.br/jspui/handle/123456789/22698This study presents the design of a didactic system to be used as a reference, to the activity of teaching chemistry teachers about the ability to explain the properties of the isomers. The study is based on the presupposition that the formation of this ability generalizes a more ample ability – that of explaining the properties of the substances – and that it is part of the dialectic relation between the initial formative activity and the professional activity of the chemistry teacher. The study used dialectic and historical materialism for the general theoretical-methodological direction of the study. In principle, the theory of planned formation of mental actions and concepts, proposed by Piotr Yakovlevich Galperin (2001), was taken as basis for the epistemological, psychological and pedagogic plan. Nina Talízina (2009, 1987) and Isauro Beltrán Núñez (2009, 1999, 1992), are the other two main authors used to compose the reference base of the study. To help the conception and the development of the didactic system, an investigation of the isomerism content in the following sources was carried out: i) organic chemistry books of different levels; ii) tests of serial systems of assessment (SSA) from public universities and from the Exame Nacional do Ensino Medio (ENEM) [on a par with the SATs in the US]; and iii) official documents of the Brazilian educational system. The results of the analyses verified that isomerism is a traditional content officially instituted in the country, but that has been neglected by the ENEM and receives a treatment in the SSA tests similar to that presented in high school didactic books. Generally, the structures followed by the books have differences in the quality of the contents contemplated, according to the teaching level, and follow a linear and disarticulated sequence. The objectives of the proposed didactic system are directly related to qualitative indicators based on planning, orientation, execution and control of the formative process of the general ability of teaching, and to the evaluation of this development. The determination of the content was carried out by applying the theoretical method of the activity, considering the relation between the formal competence of the chemistry teacher, the abilities to be developed along his/her initial formative activity and the basic tasks of the future chemistry teacher in his/her field of professional work. The structuring of the content was carried out with a structural-functional systemic focus. A functional invariant of execution of ability was also developed to be used in proposals following the cognoscitive cycle stages proposed by Galperin, with an orientation base of activity type III. Thus, different teaching situations were developed to be used as a task system for the formation of the ability of teaching, in a didactic system taken as a whole, which contributes to teaching chemistry teachers to better teach the contents of the field of chemistry.Acesso AbertoFormação e profissionalização docenteTeoria de GalperinFormação de habilidadesdoctoralThesisCNPQ::CIENCIAS HUMANAS::EDUCACAO