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Anobile, Giovanni; Arrighi, Roberto; Castaldi, Elisa; Grassi, Eleonora; Pedonese, Lara; Moscoso, Paula A. M.; Burr, David C. – Developmental Psychology, 2018
Humans and other animals are able to make rough estimations of quantities using what has been termed the "approximate number system" (ANS). Much evidence suggests that sensitivity to numerosity correlates with symbolic math capacity, leading to the suggestion that the ANS may serve as a start-up tool to develop symbolic math. Many…
Descriptors: Children, Mathematics Skills, Spatial Ability, Time
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Tira, Michael D.; Tagliabue, Mariaelena; Vidotto, Giulio – Psicologica: International Journal of Methodology and Experimental Psychology, 2014
In two experiments, participants judged the average numerosity between two sequentially presented dot patterns to perform an approximate arithmetic task. In Experiment 1, the response was given on a 0-20 numerical scale (categorical scaling), and in Experiment 2, the response was given by the production of a dot pattern of the desired numerosity…
Descriptors: Number Concepts, Number Systems, Numbers, Science Experiments
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Pixner, S.; Moeller, K.; Hermanova, V.; Nuerk, H. -C.; Kaufmann, L. – Journal of Experimental Child Psychology, 2011
The unit-decade compatibility effect is interpreted to reflect processes of place value integration in two-digit number magnitude comparisons. The current study aimed at elucidating the influence of language properties on the compatibility effect of Arabic two-digit numbers in Austrian, Italian, and Czech first graders. The number word systems of…
Descriptors: Semitic Languages, Number Concepts, Grade 1, German
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Bonotto, C. – Insegnamento della Matematica e delle Scienze Integrate, 1995
Attempted to verify knowledge regarding decimal and rational numbers in children ages 10-14. Discusses how pupils can receive and assimilate extensions of the number system from natural numbers to decimals and fractions and later can integrate this extension into a single and coherent numerical structure. (Author/MKR)
Descriptors: Cognitive Structures, Decimal Fractions, Elementary School Students, Elementary Secondary Education