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Direct linkHaman, Maciej; Lipowska, Katarzyna – Developmental Science, 2021
People tend to underestimate subtraction and overestimate addition outcomes and to associate subtraction with the left side and addition with the right side. These two phenomena are collectively labeled 'operational momentum' (OM) and thought to have their origins in the same mechanism of 'moving attention along the mental number line'. OM in…
Descriptors: Preschool Children, Arithmetic, Attention, Spatial Ability
Tobia, Valentina; Bonifacci, Paola; Marzocchi, Gian Marco – European Journal of Psychology of Education, 2016
Early calculation abilities in preschoolers are predictive of mathematics achievement in subsequent grades (e.g., Jordan et al. 2009). Two studies were conducted to evaluate concurrent and longitudinal predictors of early calculation skills. In the first study, 102 preschoolers (57.8% female; mean age?=?60.57?±?8.66 months) were given vocabulary,…
Descriptors: Computation, Preschool Children, Mathematics Achievement, Mathematics Skills
