Introduction: Subitizing, a quick apprehension of the numerosity of a small set of items, is consistently utilized to support early number understanding. Perceptual subitizing is the innate ability to recognize less than five items without consciously using other mental or mathematical processes. Conceptual subitizing, which requires higher-level…

Conservation and executive function (EF) are important early childhood skills; however, knowledge about their relationship is scarce. Hence, in this study, this relationship is investigated, and a comparison is conducted between the Piagetian conservation and EF tasks to obtain the total hemoglobin (mMmm) for the left and right brain activity in…

Two experiments were conducted to investigate children's performance on different number versions of identity and equivalence conservation tasks. Subjects were 88 children ranging in age from four to six years. (MP)

This study investigated the effect of different implicit definitions of equality upon children's performance on conservation tasks. In the study, traditional versions of conservation tasks are compared to modified versions in which initial equality is established through verbal counting of discontinuous quantities and measuring of continuous…

Investigates which aspects of the mother behavior in interaction would be related, and in what way, to the child's acquisition of number conservation as a criterion measure of later cognitive development. (MP)

This study investigated the ability of preschool children in Singapore to conserve number, length, and quantity. Participants were more than 200 children of 3 to 6 years who attended one of six different types of preschool centers. Findings indicated that more than half of the 5.5-year-old children were able to conserve number, but less than 15…

Over 1000 out of 4000 preschoolers observed conserved identity of matter over time and roughly two-thirds of the 1000 also conserved equivalence. Follow-up showed no correlation between kindergarten conservation abilities and grade one math performance but significant correlations between equivalence conservation by end of kindergarten and grade…

In four parts, this discussion describes characteristics of the thought of infants, preschool children, primary school students, and adolescents. Topics briefly addressed in part I, on the thought processes/capabilities of babies, concern sensorimotor thought without abstraction, the importance of physical exploration, the development of…