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Direct linkKrajcsi, Attila; Reynvoet, Bert – Developmental Science, 2024
Initial acquisition of the first symbolic numbers is measured with the Give a Number (GaN) task. According to the classic method, it is assumed that children who know only 1, 2, 3, or 4 in the GaN task, (termed separately one-, two-, three-, and four-knowers, or collectively subset-knowers) have only a limited conceptual understanding of numbers.…
Descriptors: Numbers, Number Concepts, Symbols (Mathematics), Children
Josetxu Orrantia; David Muñez; Rosario Sánchez; Laura Matilla – Developmental Science, 2024
Mapping skills between different codes to represent numerical information, such as number symbols (i.e., verbal number words and written digits) and non-symbolic quantities, are important in the development of the concept of number. The aim of the current study is to investigate children's mapping skills by incorporating another numerical code…
Descriptors: Preschool Children, Pattern Recognition, Child Development, Numbers
Denitza Dramkin; Darko Odic – Developmental Science, 2024
As adults, we represent and think about number, space, and time in at least two ways: our intuitive--but imprecise--perceptual representations, and the slowly learned--but precise--number words. With development, these representational formats interface, allowing us to use precise number words to estimate imprecise perceptual experiences. We test…
Descriptors: Child Development, Numbers, Vocabulary Development, Numeracy
Serena Dolfi; Gisella Decarli; Maristella Lunardon; Michele De Filippo De Grazia; Silvia Gerola; Silvia Lanfranchi; Giuseppe Cossu; Francesco Sella; Alberto Testolin; Marco Zorzi – Developmental Science, 2024
Impaired numerosity perception in developmental dyscalculia (low "number acuity") has been interpreted as evidence of reduced representational precision in the neurocognitive system supporting non-symbolic number sense. However, recent studies suggest that poor numerosity judgments might stem from stronger interference from non-numerical…
Descriptors: Number Concepts, Learning Disabilities, Numeracy, Mathematics Skills
Yunji Park; Yuan Zhang; Hyesang Chang; Vinod Menon – Developmental Science, 2024
Number sense is fundamental to the development of numerical problem-solving skills. In early childhood, children establish associations between non-symbolic (e.g., a set of dots) and symbolic (e.g., Arabic numerals) representations of quantity. The developmental estrangement theory proposes that the relationship between non-symbolic and symbolic…
Descriptors: Number Concepts, Mathematics Skills, Arithmetic, Training
Zehra E. Ünal; Züleyha Terzi; Beyzanur Yalvaç; David C. Geary – Developmental Science, 2024
Understanding the magnitudes represented by numerals is a core component of early mathematical development and is often assessed by accuracy in situating numerals and fractions on a number line. Performance on these measures is consistently related to performance in other mathematics domains, but the strength of these relations may be…
Descriptors: Number Concepts, Mathematics Achievement, Mathematics Education, Meta Analysis
