TY - JOUR

T1 - Primary students' success on the structured number line

AU - Diezmann, Carmel M.

AU - Lowrie, Thomas

AU - Sugars, Lindy A.

N1 - Imported on 12 Apr 2017 - DigiTool details were: month (773h) = Oct 2010; Journal title (773t) = Australian Primary Mathematics Classroom. ISSNs: 1326-0286;

PY - 2010/10

Y1 - 2010/10

N2 - Number lines are part of our everyday life (e.g., thermometers, kitchen scales) and are frequently used in primary mathematics as instructional aids, in texts, and for assessment purposes on mathematics tests. There are two types of number lines; structured number lines, which are the focus of this paper, and empty number lines. Structured number lines represent mathematical information by the placement of marks on a horizontal or vertical line which has been marked into proportional segments(Figure 1). Empty number lines are blank lines which students can use for calculations (Figure 2) and are not discussed further here (see van den Heuvel-Panhuizen, 2008, on the role of empty number lines). In this article, we will focus on how students' knowledge of the structured number line develops and how they become successful users of this mathematical tool.

AB - Number lines are part of our everyday life (e.g., thermometers, kitchen scales) and are frequently used in primary mathematics as instructional aids, in texts, and for assessment purposes on mathematics tests. There are two types of number lines; structured number lines, which are the focus of this paper, and empty number lines. Structured number lines represent mathematical information by the placement of marks on a horizontal or vertical line which has been marked into proportional segments(Figure 1). Empty number lines are blank lines which students can use for calculations (Figure 2) and are not discussed further here (see van den Heuvel-Panhuizen, 2008, on the role of empty number lines). In this article, we will focus on how students' knowledge of the structured number line develops and how they become successful users of this mathematical tool.

KW - Open access version available

M3 - Article

VL - 15

SP - 24

EP - 28

JO - Australian Primary Mathematics Classroom

JF - Australian Primary Mathematics Classroom

SN - 1326-0286

IS - 4

ER -