The Hubble Space Telescope project is described. Discussed are the project directors, construction, launch, deployment, hazards, rationale, and hope of the project. (CW)

Presented is the best understanding of the flaw discovered in the optics of the Hubble Space Telescope and the possible solutions to the problems. The spherical aberration in the telescope's mirror and its effect on the quality of the telescope's imaging ability is discussed. (CW)

Described is a curriculum development project aimed at stimulating girls' interest in physics with a view to encouraging more girls to pursue the subject further. Included are the background information, implementation, and implications for science teaching. (KR)

The significant stages in the development of understanding of the concept of electric charge are discussed. The history is outlined with references to certain important experiments, and suggestions are made for relevant school demonstrations and experiments. (KR)

Discussed is the idea that energy is the cause of change. This idea, going back to early cognitive development, means that the teaching of energy needs to confront how, thermodynamically, people can perform actions. The change in energy caused by differences is emphasized. (KR)

Questioned is whether teacher training programs actually achieve widespread and long-lasting changes in student learning. The hands-on programs for teachers at Brookhaven and Livermore laboratories are described. The effect of these programs on teacher effectiveness in the classroom is discussed. (KR)

Scrutinizes the assessment of students' practical skills, in an honors-level biology examination, for construct validity utilizing both correlational and factor analytical methods to explore relationships between students' practical (laboratory) and theoretical (written) performances. Indicates that teacher assessment of practical skills resulted…

Presents a method of analyzing a classic free-fall demonstration using a computer and an audio digitizer. (ZWH)

The results of a survey sent to members of the National Association of Biology Teachers (NABT) asking what they believed to be the essential topics to be covered in the introductory high school biology course are provided. Interpretations of the data and recommendations are included. (KR)

Discussed is the idea that students come into their lessons with already preformed notions for many basic astronomical events. Examples of students' responses during an astronomy lesson are included. Suggestions for uncovering students' alternative frameworks are presented. (KR)

The questions of how science should be taught and why science education is failing are addressed in this article. The science/technology/society (STS) perspective and the importance of students becoming scientifically literate are emphasized. The essential elements of a high quality science curriculum are listed. (KR)

A hypermedia computer program that uses text, graphics, sound, and animation with associative information linking techniques to teach the functional anatomy of a rat is described. The program includes a nonintimidating tutor, to which the student may turn. (KR)

Investigates influences of educational set and cognitive preference of the student as independent variables on knowledge and cognitive organization outcomes in the context of other educationally significant variables. Concludes cognitive preference is an important variable contributing uniquely to achievement and cognitive organization in the…

Synthesizes existing, isolated bits of information on U.S. secondary student enrollment in advanced science courses. Among the findings for grades 10, 11, and 12, the percentage of those students enrolled in Advanced Biology is 20, 26, and 54. Advanced Chemistry is 0, 33, and 67; and Advanced Physics is 0, 10, and 90. (PR)

Interviews were conducted with grade 10 students (n=34) who had received 4 years of physics instruction. Interview's focus was to understand students' responses from their point of view. The results of the study confirm and deepen findings from other studies concerning students' severe difficulties in learning the energy concept, the particle…