Parents of 31 developmentally delayed children (ages 1-27 months) received training to assess their children's developmental status. No initial differences existed between parent and professional scores in the motor, social, or language domains. Differences in the self-help domain disappeared after 4 months and in the cognitive domain after 12…

Two experiments examine whether the encoding of location meets criteria defining an automatic process. Automatic processes are not expected to show developmental changes beyond an early age. They appear to be unrelated to intelligence level and unaffected by instructions. Results support Hasher and Zack's automaticity hypothesis. (RWB)

Reports on a study to test the validity of the assumption that a teacher's conception of the nature of science directly influences his/her classroom behavior. Recommends a redirection in science education to promote more adequate conceptions of the nature of science in secondary schools. (TW)

Research on the cognitive development of play skills in young handicapped children is reviewed, focusing on two Piagetian styles of play--sensorimotor (exploratory) and symbolic (pretend and dramatic). The review emphasizes developmental patterns, areas of deficit, and implications for intervention in various handicapped groups. (Author/JDD)

Proposes that teachers should examine the elements of mathematical understandings that precede conservation and one-to-one correspondence and tailor classroom instruction to benefit both conserving and nonconserving students. (PK)

Discusses the need for evaluating the efficiency of early childhood education programs. Presents a model of educational productivity that specifies nine chief factors which require optimization to increase affective, behavioral, and cognitive learning. (Author/RWB)

Reviews the literature on classroom reading instruction and elaborates the results of a series of studies that hypothesized that high-risk students, such as those typically found in low reading groups, would become more aware of how to reason during reading if their teachers explained the mental acts associated with strategic skill use. (NKA)

Designed to determine whether computer-assisted instruction could enhance performance on Piagetian classification and conservation tasks, this study divided 44 preschool children into an experimental group, which was exposed to computer lessons, and a control group. Both age and computer exposure were found to be significant variables. (LRW)

Reexamines the traditional role of observation in science and science education. Proposes that since observation is based on some view of the world, it is not innocent and unbiased, but theory-dependent. Discusses possible implications for the science curriculum when reconsidering the role and status of observation in science. (TW)

Describes an investigation of the strategies used by 47 high school students in solving volumetric analysis problems in chemistry. Reports that students in the high ability group mainly used the "formula" approach, while those in the low ability group tended to use the "proportional" approach to problem solving. (TW)

Discusses the value of studying errors made by students in the process of learning science. Addresses 20 research questions dealing with student learning errors. Attempts to characterize errors made by students and clarify some terms used in error research. (TW)

This review of the research on Logo use with pre-high school students highlights programing and learning stages, cognitive requirements, and effects of Logo programing on social-emotional development, achievement, and problem-solving abilities. (MBR)

Reports on a study in which children aged 7 to 9 years and 11 to 13 years were asked to judge which one out of three wooden blocks would float, given weight and volume information for each block relative to a block that was known to float. Indicates that judgments may have been based on the size-weight illusion. (HOD)

Echoes the recommendation in "An Agenda for Excellence at the Middle Level" that junior high schools and middle schools recognize and accommodate their socially, physically, and mentally diverse populations. (SRT)

Presents results of interactive discussions between teachers and educational researchers on student learning theories. Emphasizes the need for development of alternative teaching and learning activities for understanding science concepts. Also recommends active engagement of the learner and consideration of existing knowledge in constructing…