Have the Next Generation Science Standards fulfilled a goal of specifying the objectives of precollege science education in clear and exact enough terms to make them readily implementable? Using students' understanding of the concept of a variable as a case in point, the author suggests that the standards, despite their seeming precision and…

Using the US national sample from the Third International Mathematics and Science Study (TIMSS) and the Rasch modeling method, this study identified the conceptual progression sequence of various matter concept aspects, and compared students' latent abilities against the sequence. We found that the four matter aspects, i.e. conservation, physical…

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)

A colliding spheres type of experiment is used with several hundred 4-12 grade students to test for knowledge of the concept of controlling variables. Results support the contention that the concept is developed gradually during the concept stage but not fully attained until around 14 years of age. (CP)

Defines five levels between concrete and formal operation in the development of the concept of controlling variables. The sample, methodology and research on which the work is based is described in SE 519 500. (CP)

Encourages the examination of incorrect responses given by students to questions in the belief that the responses will reveal information concerning subjects' logical thinking and concept-forming abilities. College students' incorrect responses to physical science questions are analyzed. (CP)

Advocates the educational theories of David Ausubel as a basis on which to build science and mathematics curricula and instructional procedures. Offers interpretations of Piaget's conservation tasks in Ausubelian theory. (CP)

Questions Piagetian theory that dismisses the idea of accelerating cognitive development through classroom activities. (CP)

Identifies and discusses the epistemological roots of various terms that have been used to describe student conceptions in the literature with a view to suggest which term science eductors should adopt. Argues that "alternative conceptions" is preferable to "alternative frameworks" for use in describing student conceptions in…

Offers perspectives on how conceptual changes actually take place in students. Proposes that elements of Kuhn's concept of scientific paradigms and Wittgenstein's concept of the "language-game" be considered in an analysis of conceptual change. Explains how components of these models relate to science learning. (ML)

Proposes a framework for interpreting current research in science education. Presents four prototypes for describing research which are derived from comparisons and combinations of "spontaneous" and "formal" knowledge. Discusses possible applications of the use of the framework in science education. (TW)

Describes a study which sought to determine whether differences existed between girls and boys in terms of their concept structure interrelatedness competence (ConSIC) in the areas of physical science, life science, earth sciences, between sciences, within sciences and across all sciences by measuring ConSIC. (ML)

Concept maps and structured/clinical interviews were completed by 25 fourth graders and 25 college freshmen to determine knowledge of the human circulatory system. Students (N=945) at various levels were then measured for misconception frequencies. Student preconceptions appear to be tenacious, but confrontation strategies may assist fundamental…

Argues that Venn Diagrams are powerful probes of students' understanding of the meanings of terms and the relations between concepts. Examples of the various classroom contexts in which the diagrams can be used are provided. (JN)

The generative learning model is explored and linked to recent science education research findings. The implications of the model for the teaching and learning of science, the training of science teachers, and science educational research are discussed. (JN)