Examined Australian year-10 students (n=110) for the effects of an instructional sequence in physics on their subsequent physics achievement and their perceived value of instruction aimed at conceptual change in year 11. An appendix outlines the year-10 instruction. (Contains 24 references.) (MDH)

This study identified five categories of factors that inhibit science teaching effectiveness by bringing stress on science teachers: student characteristics; teacher characteristics; school environment; administrative procedures; and conditions of service. Coping strategies to relieve stress are provided. (Contains 29 references.) (MDH)

Examined and compared the logical thinking skills and science process skills of junior high school students in North Carolina (n=3,291) and Japan (n=4,397) by grade and by gender. Results indicated that Japanese students in grades seven, eight, and nine performed significantly better than North Carolina students in both areas. (MDH)

Uses Laudan's model of scientific change to obtain corresponding features on conceptual change in science learning. Discusses some practical consequences for science education. (MDH)

Survey results contrast teachers' (n=159) knowledge and understanding with the understanding levels expected by England's science National Curriculum. Teacher's understanding with respect to the concepts of force, energy, and changes in materials are discussed. (Contains 29 references.) (MDH)

This study formulated and tested a mathematical model to predict learning in which the amount of correct information recalled from an audio learning task is a function of the rate of oral communication. (Contains 36 references.) (MDH)

Investigated primary school children's scientific understanding and the conceptual change that occurs when using an interactive approach to teaching science. Discourse analysis of classroom conversations indicated three different types of teacher-child and child-child interactions. (Contains 53 references.) (MDH)

Children in grade one (n=8) and grade five (n=9) were interviewed to determine the influence of contexts of meaning on their knowledge of earthworms. Four components of contexts of meaning were identified and discussed: episodic knowledge, metaphors, interpretive frameworks, and emotions-values-aesthetics. (Contains 20 references.) (MDH)

Examines trends in teachers' beliefs about scientists and the nature of science. Discusses teachers' questionnaire responses on the following qualities of scientists: minimum educational qualifications; creativity; temperament; stereotyped image; and personal beliefs about indigenous systems of medicine and astrology. (Contains 63 references.)…

Lack of student use of critical thinking operations can lead to faulty argumentation in discussing societal issues. Presents 12 common fallacies in student argumentation and discusses their implications for science education. (Contains 51 references.) (MDH)

Explores the potential of portfolios for science education by examining issues related to purpose, structure, and authenticity. Illustrates portfolio applications in student assessment, prospective science teacher education programs, and the assessment of practicing science teachers. (MDH)

A sample of grade 11 and 12 Canadian students (n>2000) responded to a national survey concerning the epistemology of science. Results revealed preconceptions held by students involving the nature of science, scientific assumptions, values in science, conceptual inventions, the scientific method, consensus making in science, and characteristics of…

This case study examines one enthusiastic elementary student teacher's beliefs about science and science teaching, the teacher's classroom practices, and perceived constraints to science teaching. Constraints included lack of time, facilities, and equipment; expectations by the university supervisor, the cooperating teacher, and peers; and…

Explores high school student's postinstructional knowledge about mass, volume, weight, and density in terms of what students need to know to successfully solve academic physical science problems. Presents definitions of the concepts, discusses hypothesized knowledge deficiencies, and suggests implications for instructional design. (Contains 31…

Discusses (1) the need for teachers to understand student conceptions; (2) alternative conceptions that students formulate; (3) changing conceptions; (4) representing conceptual knowledge for studying conceptual change; (5) strategies for inducing change; and (6) a taxonomy of conceptual change. (Contains 61 references.) (MDH)