Função polinomial do 1° grau: análise do desempenho de estudantes do 9º ano em atividades construídas a partir da Teoria de Resposta ao Item

Abstract

The objective of this work is to analyze the performance of students in the 9th grade of elementary school when answering activities related to the theme polynomial function of the 1st grade built from the Item Response Theory (IRT). The instrument used for data collection was built with 4 items, however, only 2 were analyzed, as they contemplate the mathematical theme of this work, whose application took place with 50 students from a state public school in the municipality of Pesqueira/PE. An important point for the construction of the data collection instrument was the choice, on the part of the teacher, to select some skills contained in the official document Currículo de Pernambuco. After analyzing the students' performance in view of the material analyzed and the data obtained, it can be said that there was a good performance in solving item 1, which is not repeated in item 2. We attribute this result to the fact that item 2 has a degree of greater interpretation, as it is a contextualization, thus revealing difficulties on the part of students in carrying out the correct interpretation.