The effects of two training sequences on the development of young children's logical operations and number concepts, including rational counting strategies, were investigated. Forty-five preschool children, aged 3.11 to 4.10, were randomly assigned to two treatment groups and one control group. Subjects in the treatment groups received training…

Four-year-old (N=45) children were trained for eight weeks in one of three conditions: (1) logical foundations (classification and seriation); (2) number skills (counting); and (3) control. The experimental treatments were based on the logical foundations model of Piagetian theorists and a skill integration model. (Author/BS)