Discusses Piaget's ideas and their influence on science class practices. Three elementary science programs are presented as teaching models based on Piaget's theory. New issues for teachers created as a result of the application of Piagetian ideas are discussed also. (HM)

Analyzes the performance of the Electronic Task (ET), to test for combinatorial reasoning, over a broad range of subject ages and abilities in order to evaluate it as a substitute for the original Chemical Task (CT). (GA)

Investigated the effects of the reading and logical thinking abilities of average and below-average students in urban high schools on learning outcomes of using the Intermediate Sciences Curriculum Study (ISCS) level and materials. (HM)

Investigated the development of children's concepts of the earth utilizing the Piagetian interview method to collect data from a sample of 240 children coming from grades four to eight of an experimental public school in Jerusalem, Israel. (HM)

Attempts to analyze the effects of advance organizers on an environmental education unit, assess retention of the instructional material one year later, and determine if changes in perceptions of a woodland occurred. (GA)

A discussion of the effect of an immersion program on the majority language child. Research is reviewed on the "threshold hypothesis" and "the developmental interdependence hypothesis." Recent studies of the cognitive and academic effects of bilingualism are critically examined in the light of these hypotheses. A bibliography…

Interviews and classroom observations were used to evaluate the Solutions unit of the MATAL Elementary Science Curriculum Project. Both techniques were found to contribute insightful information about the reasoning strategies and learning difficulties of the students. (BW)

The purpose of this consultation project was assisting faculty to become better able to adapt their instructions to developmental and learning characteristics of their students. The article describes three psychological theories, three operational structures, and three sources of gain that were key to the project. (Author/JEL)

Presents guidelines for constructing tests which accurately measure a student's cognitive skills and performance in a particular course. The advantages and disadvantages of two types of test items are listed (selected response and constructed response items). Both poor and good examples are given and general rules for test item writing are…

Four types of proportionality problems were administered to: (1) secondary school students who were enrolled in Project Physics, and (2) students not enrolled in physics. Both samples were randomly selected. Groups were not found to differ significantly in problem solving ability but both revealed that the ability to solve certain problems was…

Debates as to the appropriateness of using the Karplus Islands Puzzle as an instrument to assess formal-operational thought. (CP)

Flexibility and creativity are essential skills for aiding learning-disabled students. In addition, specialized knowledge of specific learning disabilities is essential and will enhance the overall skills of the counselor. The counselor's personal warmth, empathy, and understanding will enhance relationships with the students as well as their…

Reports longitudinal data on the link between the affective quality of the mother-child relationship and school-relevant cognitive performance. Sixty-seven mothers and their children participated in the first (preschool) phase of the study; 47 mothers were included in a follow-up when children were 12 years old. (Author/BN)

Discusses a study which compared differences in ratio construction made by high school freshman and junior students. Reports that more freshmen than juniors selected solutions involving one variable, whereas juniors chose solutions that coordinated two variables in a mathematical or verbal rule. Reviews implications in problem solving and concept…

Analysis of the free speech of one- to three-year-olds (N=21) found that measures of mean length of utterance (MLU) are positively related to age, are reliable, and can predict grammatical development, although there are identifiable points in the developmental evolution of MLU and MLU-like indices beyond which their reliability and validity have…