A função exponencial no caderno do professor de 2008 da Secretaria do Estado de São Paulo, análise de atividades realizadas por alunos da 2 série do ensino médio

AUTOR(ES)

Cláudia Vicente de Souza

DATA DE PUBLICAÇÃO

2010

RESUMO

This work arms is to analyze whether the activities presented in the Teachers Book contribute to the students on not understanding about the exponential function, and whether on not the students can make changes in the register of semiotic representation, according to Duvals theory (2003). We also analyze if there is a variable approach in this book according to the Ursinis et al (2005) 3UV model (Three Uses for the Variable). Our interest in doing this research started with the observation in classroom of the students low performance related to the studies of the functions and the analysis of the evaluations done by the São Paulo State Government, such as SARESP/2007, which presented as results Math students low academic performance. The research instrument consists of a review activity of powers and four activities related to the exponential function introduction, which are found in the Math Teachers Book of the High School first grade, third quarter of 2008. This document belongs to the São Paulos New Curriculum Proposal, 2008. The research presents a qualitative approach, using the methodology of Artigues Didactic Engineering (1996). The study counted on 14 high school students of the second grade from a state school located on the outskirts of the northwest region of São Paulo. Upon the results, we found out that there are difficulties in achieving changes in register of semiotic representation (register of the natural language for the algebraic register, register of table to register chart) and limitations regarding the identification of the variables as a functional relationship and unknown term. We believe that is the reflection of the difficulties which started from the beginning of the functions studies. As a positive aspect, we verified that some pairs in their graphic constructions approached the graph of the exponential function, thus demonstrating that they understand the idea of this function behavior

ASSUNTO(S)

são paulo state new curriculum proposal of 2008 exponential function register of semiotic representation matematica nova proposta curricular de 2008 do estado de são paulo modelo 3uv algebraic education educacao matematica matematica (ensino medio) -- estudo e ensino registro de representacao semiotica educacao algebrica funcoes exponenciais 3uv model

Documentos Relacionados

• Ambiente informatizado: para o aprofundamento da função quadrática por alunos da 2 série do ensino médio
• A presença da matemática na formação do professor do ensino primário no estado de São Paulo, no período de 1890 a 1930
• Análise da situação de aprendizagem sobre equações e inequações logarítmicas apresentada no Caderno do Professor de 2009 do Estado de São Paulo
• Função do 1 grau: um estudo sobre seus registros de representação semiótica por alunos da 1 série do Ensino médio
• Uma análise da municipalização do ensino no Estado de São Paulo