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O objetivo deste artigo é caracterizar o uso da linguagem algébrica por alunos de 9.º ano, no que se refere a estratégias, significados e dificuldades. Para tal, discutimos as produções decorrentes da realização de uma tarefa de cunho algébrico por seis alunos. Os resultados mostram o uso de estratégias simbólicas e de estratégias baseadas na reflexão informal e a atribuição de significados adequados a símbolos, mas uma disposição limitada de busca e revisão de significados de expressões algébricas. Usar parênteses, multiplicar monómios e expressar relações presentes no contexto do problema destacam-se como as principais dificuldades dos alunos.
The aim of this article is to characterize the use of algebraic language by grade 9 students, with regard to strategies, meanings and difficulties. For that, we discuss the productions resulting from solving an algebraic task by six students. The results show the use of symbolic strategies and strategies based on informal reflection and the attribution of appropriate meanings to symbols, but a limited willingness to search and revise the meanings of algebraic expressions. Using parentheses, multiplying monomials and expressing relationships present in the context of the problem stand out as the students’ main difficulties.
The aim of this article is to characterize the use of algebraic language by grade 9 students, with regard to strategies, meanings and difficulties. For that, we discuss the productions resulting from solving an algebraic task by six students. The results show the use of symbolic strategies and strategies based on informal reflection and the attribution of appropriate meanings to symbols, but a limited willingness to search and revise the meanings of algebraic expressions. Using parentheses, multiplying monomials and expressing relationships present in the context of the problem stand out as the students’ main difficulties.
Descrição
Palavras-chave
Aprendizagem da álgebra Linguagem algébrica Sentido de símbolo Significado Símbolo Algebraic language Learning algebra Meaning Symbol Symbol sense