Sequência didática usando o Geogebra na aprendizagem de função quadrática no Ensino Fundamental II

Abstract

The objective of this assignment is to identify and to analyze the didactic obstacles of learning from students of elementary school in the construction of knowledge about the content of a quadratic function, aiming to overcome with a teaching sequence linked to GeoGebra. We hypothetically only the use of approach and activities of the textbook, may cause learning obstacles in the application of a didactic sequence over quadratic function, focused on its coefficients and parameters of translations dynamically that will help to overcome of them. It is based on the principles of Didactic Engineering with management in the development, application of a didactic sequence and confrontation between the analysis a priori and a posteriori on data collection. It is grounded in the Theory of Didactic Situations from Brousseau and in the Theory of Semiotics Representation Registers from Raymond Duval. The didactic sequence is oriented in Maia’s research (2007), and Duval’s assignment (2011) charts and equations: the articulation of two records. The teaching tool used in the teaching sequence was GeoGebra,besides the use of paper and pencil. The sequence was applied to a group of five students from the 9th grade of elementary school II at a state public school in the city of Manaus, Amazonas. The protocols of the five students who participated in all activities were analyzed, and these achieved results lead us to conclude that the educational obstacles were identified and analyzed on quadratic function and the didactic sequence in conjunction with the Geogebra was essential in overcoming these challenges.