Discussed is the idea that models should be taught by emphasizing limitations rather than focusing on their generality. Two examples of gas behavior models are included--the kinetic and static models. (KR)

Discussed is the effectiveness of using analogies in chemistry instruction. Students' mathematics anxiety, spatial visualization skill, and proportional reasoning ability were found to be important aptitudes for determining chemistry achievement. The relationship between analogs and algorithms is described. (KR)

Examined are some of the distinctive features of the biological sciences. Discussed are the use of models with case studies, universal principles, and alternative frameworks. (CW)

Explores potential changes in the power relationships among teachers and principals. Describes and analyzes the following models of teacher decision-making: (1) Instructional Leadership Teams; (2) Principals' Advisory Councils; (3) School Improvement Teams; and (4) Lead Teacher Committees. (FMW)

Shortcomings of current curricula for geometry in the elementary school are discussed. The use of the computer programing language Logo to develop geometric ideas is described, with supporting research. (MNS)

Discusses a study designed to evaluate the relationship between curriculum innovation and the classroom instructional methods of teachers and their students. Concludes that although significant changes in classroom practices accompany the introduction of a new curriculum package, the changes were antithetical to the intentions of the package…

An educational program was designed to introduce spatial concepts to 30 congenitally/early-blinded children, aged 8-14, using a modified Optacon of Telesensory Systems, Incorporated. Using the vibrotactile stimulation device, the children learned to identify various objects correctly and to describe their relative spatial arrangements. (Author/JDD)

Reports on a qualitative study of teaching-learning by analogy that explores whether fifth-grade students' successful use of analogy in learning science was related to their understanding of a specific analogy; their metacognitive awareness of how the analogy was to be used and of the changes produced in their conceptual structures. (57…

Through seriation, verbal seriation, and conservation tasks, investigated blind, partially sighted, and sighted children's understanding of quantity. Subjects were 81 children equally dispersed through these 3 groups. Age range was 4 to 17 years. Found similarity in concept acquisition among three groups that extended beyond quantity conservation…

This paper urges educators of deaf students to make a greater effort to teach science conceptually to foster real understanding and produce scientifically literate students. The state of science education in general, and for deaf students specifically, is reviewed. Recommendations stress process-oriented teaching, cooperative learning, and…

Discusses research findings related to students' ability to make connections between analytical (symbolic) and graphical representations of functions in calculus. Describes graphing tasks and typical student interpretations. Implications for teaching are suggested. (Contains 17 references.) (MKR)

A teaching experiment with six third graders to analyze their ways of operating while solving fraction tasks. Children's quantitative reasoning with fractions was based on their quantitative reasoning with natural numbers. Presents the constructive itinerary of one of the most advanced children in the group. (Contains 44 references.) (Author/MDH)

Presents a series of 5 reproducible worksheets for grade levels 5-10 that provide hands-on activities to help develop the concept of slope. (MDH)

Five- to six-year-old children estimated the size of Euclidian objects using an addition rule of Height plus Width, rather than a multiplying rule. Within the framework of information integration theory, tested whether intensive handling of objects would facilitate shift from addition rule to multiplication rule. Found that following handling,…