Navegando por Assunto "Adição e subtração"

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Acesso aberto (Open Access)
Formação continuada para professores dos anos iniciais: uma proposta para o ensino das operações de adição e de subtração, fundamentada na Teoria das Situações Didáticas
(Universidade Federal do Pará, 2019-06-07) LEAL, Edilene Fernandes; MACHADO JÚNIOR, Arthur Gonçalves; http://lattes.cnpq.br/3148593292236740
This paper reports research on the practice of continuing education of teachers who work in the early years of elementary school (EF), developed in a specialization course in mathematics education for the early years of elementary school at the Institute of Mathematical and Scientific Education (IEMCI). ) of the Federal University of Para (UFPA). It is, therefore, a qualitative investigative course, in the action research modality, whose objective was to investigate in what terms the Theory of Didactic Situations can help in the continuous formation of teachers for the teaching of addition and subtraction operations in the early years. Elementary School, having as organizing lenses these practices, Brousseau's Theory of Didactic Situations (TSD). Over the four months, from March to June 2018, in which we were in the classroom, the actions were followed up and recorded through a questionnaire, audio recording and material produced by the teachers, as well as the researcher's personal notes in a notebook. field. The collected material was treated and organized into categories, which wereanalyzed mainly, but not exclusively, from the theoretical framework built for this purpose. Narrative analysis reveals that teachers need to know the object of knowledge, as well as to establish a relationship with their teaching, that is, to know to organize didactically the knowledge for students to learn.
Acesso aberto (Open Access)
Sequência didática na perspectiva do campo conceitual aditivo para o ensino e aprendizagem das operações de adição e subtração.
(Universidade Federal do Pará, 2023-10-03) GONÇALVES, Maria Luciana Souza; SILVA, Renata Lourinho da; http://lattes.cnpq.br/7692379318643297
This research deals with the learning difficulties of students in the 2nd year of Elementary School, which involve the concepts and operations of addition and subtraction. These difficulties were highlighted in the classroom, as well as in the results of the SAEB (Basic Education Assessment System) tests in 2019, in the literature review and in the application of a didactic sequence, thus reinforcing, the problem of teaching addition and subtraction in the early years of elementary school. With this, the objective is to structure a Didactic Sequence from the perspective of Conceptual Field Theory for teaching and learning the concepts and operations of addition and subtraction in the early years of elementary school. elementary School. In this sense, the methodological structure of the research is anchored in Didactic Engineering, which was identified in two textbooks, which little explore the categories of problems in the additive field designated by Vergnaud, in this way, we present as an educational product, a paradidactic book, as a didactic sequence model, which explores studies of the concepts of addition and subtraction, as well as the operations that apply them from the perspective of Vergnaud's additive conceptual field.