Abstract:
INTRODUCTION:Children take years to learn symbolic arithmetic. Nevertheless, such as animals and human adults, infants and children can represent approximate number in arrays of objects and sequences of events, and use these capacities to perform approximate addition and subtraction. OBJECTIVE:To evaluate whether preschool children without formal education could perform non-symbolic additions, through abstract representations. METHODS:We evaluated 17 preschoolers from a private kindergarten recruited from the city of Buenos Aires. They had to add to groups of blue dots, and then compare their addition with a third group of red dots, determining if the blue or the red dots were more numerous. We measured accuracy of responses of each child. RESULTS:Across all the problems, children performed well above chance (67.89%, chance= 50%, t(16)= 6.89, p <0.001), showing the characteristic ratio effect [F(1, 16)= 8.45, p <0.01, ANOVA], and without resort to non-arithmetic strategies. CONCLUSIONS:This study provides further evidence regarding the non-symbolic arithmetic skill present before formal education, and together with recent research, raises important contributions in education, trying to understand how children learn mathematics and to establish new methods of teaching.
journal_name
Arch Argent Pediatrjournal_title
Archivos argentinos de pediatriaauthors
Martínez J,Argibay PFdoi
10.1590/S0325-00752011000500006subject
Has Abstractpub_date
2011-10-01 00:00:00pages
406-11issue
5eissn
0325-0075issn
1668-3501pii
S0325-00752011000500006journal_volume
109pub_type
杂志文章abstract:OBJECTIVE:To determine the frequency of the MEFV gene mutations in pediatric patients diagnosed with HSP and to assess the effect of the MEFV gene mutations on their prognosis. Material and Methods. Ccross-sectional study; pediatric patients between 2-11 years diagnosed with HSP were included. These cases were investig...
journal_title:Archivos argentinos de pediatria
pub_type: 杂志文章
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journal_title:Archivos argentinos de pediatria
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journal_title:Archivos argentinos de pediatria
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journal_title:Archivos argentinos de pediatria
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pub_type: 共识发展会议,杂志文章
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doi:10.5546/aap.2018.eng.248
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doi:10.1590/S0325-00752010000100010
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更新日期:2017-12-01 00:00:00
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