The increasing presence of linguistically diverse young children in U.S. public schools has prompted science educators to recognize the need for approaches that are inclusive and sensitive to students' academic needs. The challenge is to design lessons that provide language support while actively engaging children in authentic scientific inquiry.…

Indicates how research about the physiology and chemistry of the brain verifies the educational applications of Piaget's theory. Discusses maturation, experience, social transmission, and equilibration. (Author/DC)

Examines the misconceptions of children as indicative of imaginative and perceptive thinking. Anecdotes that illustrate the split between realist and relationalist thinking, and the confusion between fact and metaphor are presented as citations from literary works. (BC)

Children in grades two and five explained such weather phenomena as wind, clouds, thunder, lightning, rain, snow, and rainbows during interviews. Results indicate that most students in both grades were at a stage of nonreligious finalism and do not use true causality in explanations. Implications for teaching are discussed. (DH)

Reviews the formation of space, time, and measurement concepts in children with respect to Piagetian developmental levels and presents some teaching methods to help promote these concepts. (SK)

Reports findings of a study on children's perceptions and alternate conceptions about the human circulatory system. Summarizes the responses of fifth and eighth grade students on questions dealing with the heart and blood. Offers examples of hands-on activities and confrontation strategies that address common misconceptions on circulation. (ML)

Describes a series of exercises designed to develop student's perceptual skills and to improve the processes of comparing, describing, and developing subsets. Includes suggestions for adapting the exercises into science lessons, providing tips for developing each into complete units. Units include human-made objects, leaves, shells, rocks, and…

Presents criteria that science teachers can use to decide where a given classroom activity falls in a continuum from concrete to abstract. The system is intended as a way of selecting appropriate tasks for children based on their previous experiences and their level of development. (JM)

Describes classroom activities to help children determine cause and relate the changes to the substances being changed. Advocates the use of "change jars" and making daily observations to teach the concepts that certain conditions promote change. Includes ideas using temperature, moisture, rotting, and sprouting to teach the concept of change. (CW)

Reviews recent research addressing the problem of matching students' cognitive levels to science textbooks. Suggests that most texts are written above the level of the students for whom they are written. Promotes experiential learning at the middle level and concentration on "right thinking" rather than on "right answers." (CW)