Práticas de ensino por investigação nas aulas de ciências desenvolvidas nos anos iniciais do ensino fundamental

Acompanha: Material de apoio para os professores das escolas municipais de Curitiba: propostas de práticas de ensino por investigação nas aulas de ciências dos anos iniciais do ensino fundamental.

Formação do pensamento científico durante o processo de alfabetização científica no ensino de teorias atômicas e elementos químicos

Acompanha: Sequências didáticas para o ensino de teorias atômicas e elementos químicos

A educação de jovens e adultos e o ensino de ciências naturais: contribuições da utilização dos conceitos unificadores

Acompanha: A educação de jovens e adultos e o ensino de ciências naturais: contribuições da utilização dos conceitos unificadores

Material paradidático em educação ambiental para o 6º ano do ensino fundamental

Acompanha: Material paradidático em educação ambiental para o 6º ano do ensino fundamental

Metodologia de ensino do conceito de função exponencial à luz da teoria das situações didáticas

This essay presents a proposal on methodology over the mathematical object Exponential Function which enables the development of interpretative and creative skills with potential meaning to the students starting from a didactic sequence structured on the light of The Theory of Didactic Situations from Guy Brousseau and, from the Records of Semiotic Representation of Duval, providing interactions among the students, the teacher and the environment of cooperative learning where the students feel free to express their own ideas as well as to suggest their own approaches. The methodology presented has been developed according to the students first knowledge, valuing their different ways of registering, which have such an important role during the teaching and learning processes. The proposal has been applied to the students from the first year of high school of Colégio Estadual José de Anchieta Ensino Fundamental e Médio, located in a town called Dois Vizinhos –Paraná. In order to the development of the research the methodological tool Didactic Engineering Artigue which consists in a methodology developed only to the research with didactic situations. The main goal has been reached at first, which was to work on the conceptual part of the Exponential Function, the relation of dependence and its main characteristic so that the variable part is in the exponent. Moreover with no imposition but starting from suitable didactic situations, the students were able to realize that they could solve the problems which involve the exponential function and furthermore create new problems (according to their universe) modeled by this kind of function. Its believed that the methodology based on the theory of didactic situations, analysis of students registers, observation on mistakes and obstacles as well as reflections over the aspects of the didactic contract are of fundamental importance to the teaching practice and determinant during the teaching-learning process.