Dificuldades na resolução de problemas sobre proporcionalidade na 2ª série do ensino médio: estudo de caso

Abstract

The present work investigated the difficulties found and reported by the students who are attending the 2nd grade of High School, from a state public school in the State of Paraíba when performing calculations involving proportional quantities, that is, solving issues that have operations in their context basic principles involving proportionality. The methodology used in the research process was the Case Study. The research data were obtained through a semi-structured questionnaire that was answered by 30 students aged between 15 and 24 years, of which 63% are female and 37% male. In this work, a brief historical outline is made about proportionality and how this content is approached in the National Common Curricular Base (BNCC) and in the National Curriculum Parameters (PCN). At the end it was found that 70% of students solve problems mechanically, without giving importance to understanding the content covered, thus generating doubts at the time of resolution and consequently fail to answer the proposed problems.