Students who viewed demonstrations or manipulated apparatus understood the relational concepts (of the form a/b = a'/b') of speed, force, and work better than a control group, but did not differ significantly from each other. (AL)

A pretest-posttest research design was used with 104 first-grade children to determine if discrimination and classifactory activities would affect transition from preoperational to concrete stages. Findings showed the experimental group exhibited significantly greater transition than did the control group. (CP)

Examines the attainment of Piagetian topological concepts in 100 kindergarten to second graders. Findings reveal a hierarchial pattern of attainment, but one that differs from Piaget's research. Significant differences are found for task performance and grade level but not for task performance and gender. (CP)

Describes research studies stimulated by the concern for facilitation of logical operations in elementary school and junior high school children and based on the assumption that the level of reasoning used for inquiry and concept acquisition by every individual is substantially below his capacity. (PEB)

The relationship between elementary pupils' (N=583) attitudes toward science and science achievement when using residualized gain scores was investigated. Results indicated significant relationships between scores on the two tests used: multiple choice, fill-in science achievement test, and a six-statement attitude inventory. (Author/JN)

Reports on an investigation of young children's (n=15) spontaneously constructed or naive understanding of the particulate nature of matter to any formal instruction in the domain. Speculates that children first develop local frameworks particular to different classes of substances, then slowly expand those frameworks to include a wide range of…

The concepts of distance, area, and the coordinate reference systems were investigated in relation to the displacement volume task among 300 randomly selected primary and high school children in Nigeria. Although results support Piaget's hypothesis, a developmental lag of about two years was observed in Nigerian students. (JN)