Resumo Tendo em vista reclamações de vários professores de Física do Ensino Médio que a grande maioria de seus alunos não compreendem cálculos de Matemática básica, que envolvem a disciplina que ministram, objetivou-se no presente artigo detectar tais dificuldades matemáticas, que mais tarde poderão desencadear em percalços na compreensão de conceitos das disciplinas de Física. Visando esse fim, o artigo mostra o desempenho obtido por 184 alunos do primeiro ano do Ensino Médio em um teste de sondagem matemática de Ensino Fundamental, constituído por 17 questões abertas, aplicado a sete cursos técnicos integrados de nível médio de uma escola pública federal na cidade de Cuiabá no primeiro dia de aula desses estudantes. O teste abordava conceitos aritméticos e geométricos muito importantes para as disciplinas de Física, que compõem a grade curricular dos cursos da escola. Observou-se que cerca de 84% dos que realizaram o teste acertaram menos da metade das questões e que aproximadamente 52,8% deles acertaram entre zero e três questões. Teve pior desempenho na sondagem o curso de Agrimensura, enquanto o melhor desempenho ocorreu no curso de Eletrônica. Vale ressaltar que o resultado aqui obtido na rainha das ciências não deve ser uma particularidade desta instituição específica, mas sim um reflexo conjuntural e, portanto, não se restringe a esta última. Palavras-chave: Interdisciplinaridade. Matemática Básica. Matemática Auxiliando Física. Abstract Given the complaints of several high school physics teachers that the vast majority of their students do not understand basic math calculations that involve the subject they teach, the aim of this article was to detect such mathematical difficulties that may later lead to mishaps in the concepts understanding of the subject Physics. For this purpose, the article shows the performance obtained by 184 first-year high school students in an elementary school math probing test, consisting of 17 open questions, applied to seven technical courses high school graduates of a federal public school in the city of Cuiabá on the first day of school for these students. The test addressed arithmetic and geometric concepts that are very important for the subjects of Physics that make up the syllabus of the school's courses. It was observed that about 84% of those who took the test obtained less than half of the questions right and that approximately 52.8% of them obtained between zero and three questions right. The surveying course had the worst performance in the survey, while the best performance occurred in the Electronics course. It is noteworthy that the result obtained here in the Queen of Sciences should not be a particularity of this specific institution, but rather a conjunctural reflection and, therefore, it is not restricted to the latter. Key words: Interdisciplinarity. Basic Math. Mathematics Assisting Physics.
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