ESTIMATE RATIONAL NUMBERS ON THE NUMBER LINE

ΔΕΣΛΗ & ΤΡΙΑΝΤΑΦΥΛΛΟΥ (σελ. 5 - 25) (ελληνικά)
Published: May 31, 2022
Δέσποινα (Despina)
Aristotle University of Thessaloniki
https://orcid.org/0000-0001-8532-591X
Ειρήνη Τριανταφύλλου (IRINI TRIANTAFILLOU)
Abstract

Τhe aim of the present study is to examine the ability of children and adults to estimate rational numbers on the number line. For this purpose, two numberline tasks were designed and presented to 46 Year 6 children and 42 adults asking them to: a) estimate the position of rational numbers on the number line (Number to Position Task) and b) estimate the numerical value of a rational number shown as a mark on the number line (Position to Number Task). Although success rates differed significantly between the two age groups, with the adults performing better (84%) than the Year 6 children (55%), younger participants’ accuracy of estimates was not influenced by the presence of reference points on the number line. Instead, number size (numbers less or more than one), type of rational numbers (fractions and decimal numbers) and type of task (NP, PN) played a key role in participants’ numberline estimations.

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Author Biography
Δέσποινα (Despina), Aristotle University of Thessaloniki

Αναπληρώτρια Καθηγήτρια Π.Τ.Δ.Ε. Α.Π.Θ.

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