Despite the centrality of the informal manufacturing sector ("Jua Kali") to the Kenyan society and its richness in scientific phenomena, there is no strong link between activities in the Jua Kali and school science. And, although there has been an ongoing public discourse in Kenya to industrialize, this hope is unlikely without…

An assessment-oriented design-based research model was applied to existing inquiry-oriented multimedia programs in astronomy, biology, and ecology. Building on emerging situative theories of assessment, the model extends prevailing views of formative assessment "for" learning by embedding "discursive" formative assessment more directly into the…

Despite the heavy reliance on textbooks in college courses, research indicates that college students enrolled in first-year science courses are not proficient at comprehending informational text. The present study investigated a reading comprehension questioning strategy with origins in clinical research based in elaboration interrogation theory,…

Investigates Grade 12 students' understandings of the nature of chemical bonds and the energetics elicited across five familiar chemical reactions following a course of instruction. Discusses the many ways in which students can misconstruct concepts and principles. Contains 63 references. (DDR)

Describes a study designed to determine whether the Biology Critical Thinking (BCT) project (which incorporates activities for developing specific critical thinking skills into the biology curriculum) enhances critical thinking skills and how it affects students' biological knowledge and classroom learning environment. Results indicate that BCT…

Outlines an in-depth case study of teachers' use of image processing in biology, earth science, and physics classes in one high school science department. Explores issues surrounding technology implementation. Contains 21 references. (DDR)

Identifies and describes the differences in the problem-solving methods used by faculty teaching introductory chemistry and students enrolled in an introductory chemistry course. Results indicate that students correctly solve algorithmic-mode problems more frequently. Contains 33 references. (DDR)

Assesses the potential of multimedia authoring as a learning tool using the software ASTOUND. Investigates the knowledge acquisition caused by a multimedia program among 32 grade 12 students on a multi-disciplinary environmental unit about earthquakes. Provides basic background about earthquakes via laboratory experiments and field trips to…

In this project, a resynthesis of the research dealing with student performance in new science curricula was conducted using refined statistical procedures. Results generally supported earlier meta-analysis studies. (CW)

Investigates the effect of a directed-inquiry approach to learning science process skills and scientific problem solving in the high school biology laboratory. Reports no main effect of the approach but an interaction effect of the approach and cognitive development. (Author/YP)

Community college anatomy and physiology students participated in a 14-hour study skills class designed to determine the effectiveness of a self-regulated strategy on immediate recall and retention of science knowledge. Results indicated that students who constructed graphic postorganizers recalled significantly more than students who simply…

Examined are two aspects of science education--the nature of science and curriculum reform. Contemporary views on the tentative nature of science and a generative model of learning are synthesized. (KR)

Design-Based Science (DBS) is a pedagogy in which the goal of designing an artifact contextualizes all curricular activities. Design is viewed as a vehicle through which scientific knowledge and real-world problem-solving skills can be constructed. Following Anderson and Hogan's (1999) call to document the design of new science pedagogies, this…

Reports on a study to determine the effects of the presentation of questions inserted into texts for students in introductory biology. Results indicated that students reading the text with questions at the beginning of the paragraph scored significantly higher on achievement tests than the students reading without questions. (TW)

Uses two studies to examine developmental and task effects in estimation problems. Results are discussed in terms of student and task characteristics and the implications of such variables on information processing model of learning. Implications for science teaching, learning problem diagnostics, and science curricula are also discussed. (TW)