O que as pesquisas em educação matemática apontam sobre estimativas numéricas de crianças?

Autores

DOI:

https://doi.org/10.20396/zet.v27i0.8652389

Palavras-chave:

Estimativa numérica, Estimativa na reta numérica, Estratégias de estimativa.

Resumo

Trata-se de uma revisão bibliográfica acerca do conhecimento produzido sobre estimativa numérica nas últimas três décadas, com objetivo de destacar a sua importância enquanto habilidade matemática. Observou-se que estão sendo discutidos cinco aspectos principais: as suas possíveis bases mentais, a sua relação com a representação mental dos números, o uso de estratégias e as maneiras de avaliar o seu desempenho (julgamento de quantidades e estimativa na reta numérica). Os resultados indicam que os sujeitos possuem diferentes formas de representação numérica mental e de estratégias de resolução de tarefas envolvendo estimativa numérica, demonstrando que o processo estratégico é dinâmico e construído pelo sujeito de acordo com os fatores envolvidos na situação apresentada. Conclui-se que a estimativa numérica é considerada, pelos estudos revisados, uma habilidade matemática necessária para o sucesso na vida adulta, devendo, portanto, ter espaço de discussão na escola.

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Biografia do Autor

Mariana Lima Duro, Instituto Federal do Rio Grande do Sul

Atualmente é professora e coordenadora do Curso Superior de Licenciatura em Matemática do Instituto Federal de Educação, Ciência e Tecnologia do Rio Grande do Sul - Campus Canoas.

         

 

Beatriz Vargas Dorneles, Universidade Federal do Rio Grande do Sul

Professora titular do Departamento de Estudos Especializados da Faculdade de Educação da Universidade Federal do Rio Grande do Sul e do Programa de Pós-graduação em Educação da mesma universidade.

         

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Publicado

2019-12-25

Como Citar

DURO, M. L.; DORNELES, B. V. O que as pesquisas em educação matemática apontam sobre estimativas numéricas de crianças?. Zetetike, Campinas, SP, v. 27, p. e019025, 2019. DOI: 10.20396/zet.v27i0.8652389. Disponível em: https://periodicos.sbu.unicamp.br/ojs/index.php/zetetike/article/view/8652389. Acesso em: 30 jun. 2022.