Reports the design of the "Mechanics Baseline Test," an instrument to assess students' understandings about concepts in mechanics. Discusses how comparisons of test results with extensive baseline data can be used to evaluate instruction at all levels. Includes a copy of the instrument. (MDH)

Reports on misconceptions held by intermediate grade students concerning chemistry textbook concepts, on the relation of reasoning ability to those misconceptions, and on the extent that textbooks encourage misconceptions. Concludes that the level of understanding displayed for the selected concepts, in combination with the nature of students'…

Conceptual change teaching is an instructional method that helps students modify, extend, or exchange their alternative conceptions for the appropriate scientific conceptions. Provides activities and a diagnostic test to apply the method to the concepts of heat and temperature. (MDH)

Reports the rationale, design, validation, and uses of the "Force Concept Inventory," an instrument to assess the students' beliefs on force. Includes results and implications of two studies that compared the inventory with the "Mechanics Baseline." Includes a copy of the instrument. (MDH)

Presents the STS (science/technology/society) outlook profiles of 546 eleventh graders from Israeli high schools within the existing science, nonscience, and technological tracks in terms of cognition, behavior, and literacy. Findings indicate significant differences between the profiles for students regarding behavior and literacy but not for…

Describes a study to diagnose grade 8 (n=185) and grade 10 (n=170) Israeli students' difficulties in causal thinking while studying biology. The two main difficulties found are (1) inability to organize events according to their correct temporal sequence and (2) inability to identify an event that had been caused by another event. (MDH)

Presents a study to examine the effects of a verbal teaching strategy versus a strategy providing instruction using activities and manipulatives in four seventh grade earth science classes with students of varying cognitive abilities (n=83). Results indicate that students with more cognitive structures perform better and that using manipulatives…

How science understandings are communicated and how students construct meaning of these communications are central issues in epistemic research. Students' metacognition of the meaning-making process is embedded in this line of research. This paper reports a study to examine children's declarative, procedural, and conditional knowledge of science…

One hundred and forty students in grades 6 and 7 were asked to process 32 science statements. Half of the statements were consistent with their prior knowledge, whereas the remaining facts were inconsistent with it. Half of the students were instructed to read the sentences for understanding (reading controls). The remaining students were…

When teachers possess detailed knowledge about children's thinking and problem solving, it can profoundly affect their knowledge of their students and their planning for instruction. Reported is a project designed to demonstrate the feasibility of redesigning courses for prospective teachers in mathematics and science by incorporating into the…