Psychological Science · 2008 · 192 citations · 21 references
EducationMathematicsMathematics EducationChild DevelopmentElementary Mathematics EducationMathematics InstructionMathematical Learning DifficultiesNumber SenseNumeracy DevelopmentNumerical Cognition DevelopmentEarly Numerical CompetenceIndividual Learner DifferencesLearner Individual DifferencesNumber Line EstimationNumber Line UnderstandingNumerical Knowledge Acquisition
Kindergartners in China showed greater numerical knowledge than their age peers in the United States, not only when tested with arithmetic problems, which Chinese parents present to their children more often than U.S. parents do, but also when tested with number-line estimation problems, which were novel to the children in both countries. The Chinese kindergartners' number-line estimates were comparable to those of U.S. children 1 to 2 years more advanced in school. Individual differences in arithmetic and number-line-estimation performance were positively correlated within each country. These results indicate that performance differences between Chinese and U.S. children on both practiced and unpracticed mathematical tasks are substantial even before the children begin elementary school.
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The Development of Numerical Estimation
Robert S. Siegler, John E. Opfer · Psychological Science · 2003 · 1K citations
Development of Numerical Estimation in Young Children
Robert S. Siegler, Julie L. Booth · Child Development · 2004 · 1K citations · Full text