Third grade elementary school students^ conception of number line Syafdi Maizora (a*), Dadang Juandi (a)
a) Mathematics Education, Universitas Pendidikan Indonesia
Jl. Setiabudhi No 229, Bandung 40154, Indonesia
* syafdiichiemaizora[at]upi.edu
Abstract
This article describes the conception of integers on a number line that a grade 3 elementary school student in Bengkulu City had. Although this student had not received a formal learning, he already had a conception of a number line. It was suspected that he learned informally from digital media and his surroundings. This was qualitative research study with a case study approach. The subject of this research study was a student, who was detected, having an ability to draw a number line on his notebook. The student was given conceptual questions about integers on a number line. The questions were about 1) the representation of a number line, 2) the existence of integers on a number line, 3) the meaning of a number line for the student. The results obtained were as follows: 1) the student was able to draw correctly a number line for integers, 2) the students knew that the infinity of many integers on a number line was describe by using words ^many^ and ^uncountable^, 3) the student knew that the distance between numbers on a number line was the same, 4) the student was able to use a number line to compare two numbers by stating that the number to the right was a number that was more than the number to the left, 5) the student was able to represent lines on the floor as a number line.
Keywords: Integer- Mathematical conception- Number line- Third-grade elementary school
