Describes a project where students build their own catapults and modify them to solve four problems. Suggests the unit be integrated with a social studies unit on the Middle Ages. (PR)

Describes the Imagining Nature Project at Deakin University in Australia, and the Native Eyes Project at the Institute of American Indian Art in New Mexico. Both projects entail the teaching of science and technology to non-science majors of highly diverse cultural origin. They also incorporate innovative strategies to make science and technology…

Elementary and middle school teachers in urban schools in India provided responses to the science efficacy instrument (STEBI-A). These responses were evaluated using Rasch analysis and parametric tests. Rasch fit statistics and person-item maps were evaluated. It was found that the instrument worked well for the two groups of teachers, but the…

As I look back at K-12 science education in post-World War II America, it strikes me that surprisingly little progress has been made. This disappointing outcome cannot be due to a lack of effort, for in the last half-century our investment in science education reform--human and financial--has been substantial. In this essay, I focus first on some…

This study examines the curriculum components in biology favoured by high school students in Taiwan. Our sample consisted of 155 senior high school students (51 boys and 104 girls) and 137 junior high school students (74 boys and 63 girls). The questionnaire was based on the idea of a repertory grid technique and was developed to investigate the…

Evolution by natural selection provides the conceptual framework upon which much of modern biology is based: therefore understanding core ideas about biological evolution is an essential part of scientific literacy. Nonetheless, research repeatedly shows that high school and college students have difficulties understanding the notion of natural…

The co-authors have been co-Principal Investigators on two large-scale National Science Foundation-funded teacher enhancement projects for the past eight years. One of the projects focused on middle and high schools and the second focused on the elementary school. The design of each was different, reflecting the differing natures of the…

We are developing a new activity-based unit on global warming and the environment as part of the "Explorations in Physics Curriculum." We describe the current status of this unit, which focuses on helping students understand the greenhouse effect and its relationship to global warming. We outline several problems encountered in testing the unit…

This study summarizes the results of a quantitative synthesis of the retrievable primary research dealing with the effects of new science curricula on student performance. This study synthesizes the results of 105 experimental studies involving more than 45,000 students and utilizes the quantitative synthesis perspective to research integration…

At most land-grant universities in the USA, Introduction to Soil Science is traditionally taught using a combination of lecture and laboratory formats. To promote engagement, improve comprehension, and enhance retention of content by students, we developed a problem-based learning (PBL) introductory soil science course. Students work in groups to…

This is the second and final part of a review of educational research on children's ideas about gravity. The first part concerned students' understanding of how and why things fall. This article picks up the trail of research studies that address students' understanding of the more complex ideas of projectile motion and orbits and examines how the…

Formative computer-based assessments (CBAs) for self-instruction were introduced into a Year-2 field biology module. These CBAs were provided in "tutorial" mode where each question had context-related diagnostic feedback and tutorial pages, and a self-test mode where the same CBA returned only a score. The summative assessments remained…

The Third International Mathematics and Science Study (TIMSS) is the largest, most comprehensive, and most rigorous international comparison of education ever undertaken. During the 1995 school year, the study tested the mathematics and science knowledge of a half-million students from 41 nations at five different grade levels. In addition to…

This document contains the final program and abstracts for the 1997 annual meeting of the National Association for Research in Science Teaching (NARST). Strands of the meeting included "Learning: Students' Conceptions and Conceptual Change"; "Learning: Classroom Contexts and Learner Characteristics"; "Teaching";…

This manual presents a variety of ideas for environmental education projects that range in duration from two weeks to several years. All of the projects are designed to make learning interesting and relevant to the lives of students by enabling them to develop a sense of connection to their world and a framework that empowers them to make positive…