Presents an astronomy project in which a group of educators and astronomers train high school students to teach astronomy to elementary students and their families. (KHR)

Analyzes the answers provided by (n=98) 12-year-old students to questions on an end-of-the-year science examination. Points out that although students are able to explain day and night, they have difficulties explaining why the moon always presents the same face to Earth. Addresses implications for teaching and learning. (Contains 17 references.)…

Reports on the implementation of a relatively low-cost, versatile, and intuitive system to teach basic mechanics based on the use of a Charge-Coupled Device (CCD) camera and inexpensive image-processing and analysis software. Discusses strengths and limitations of CCD imaging technologies. (JRH)

Presents the Astro-Blaster as a method of the laws of conservation of momentum and energy during the creation of a supernova. Several elastic balls are aligned for a drop, followed by multiple collisions which result in the top ball reaching tremendous heights relative to the drop height. (JRH)

Describes the construction and use of simple optical aids that allow the amateur scientist to safely observe sunspots and solar eclipses and also to measure the sun's rotation. (five references) (JJK)

Presents an excerpt from the book entitled "Lonely Hearts of the Cosmos." Provides narration of behind-the-scenes events in the lives, the scientific debates, and the intellectual triumphs of the two physicists responsible for inventing the concept of the black hole. (JJK)

Discussed is the search for life on other planets similar to Earth based on the Drake equation. Described are search strategies and microwave searches. The reasons why people are searching are also discussed. (KR)

Described is a science fair project in which M- and X-class x-ray flares on the surface of the earth were detected using a Geiger counter. Background information, the problem, hypothesis, a list of needed materials, the procedure, observations, conclusions, and a critique are included. (KR)

Suggestions and tips for novice and experienced eclipse watchers are provided. Discussed are the mysterious shadow bands that occur just minutes before an eclipse. Directions for building a deluxe pinhole projector for observing the eclipse, a reading list, and a glossary of related terms are included. (KR)

Presented is a way to measure the sun's radiation by using a radiometer. Directions for building both simple and complex radiometers, circuit diagrams, and an explanation on how they work are included. (KR)

Develops a simple core-halo model of a galaxy that exhibits the main features of observed rotation curves and quantitatively illustrates the need to postulate halos of dark matter. Uses only elementary mechanics. (Author/MVL)

Reports on a long-term, large-scale study of a one-semester, conceptually-based, introductory astronomy course with data from more than 400 students over three semesters at the University of New Mexico. Finds that novice students show large, positive gains on assessments of conceptual understanding and connected understanding of the knowledge…

Analyzes senior high school students' astronomy conceptions by means of a written questionnaire presented during the beginning of the first semester. (Contains 42 references.) (Author/YDS)

Introduces the MicroObservatory Network of automated telescopes which is designed to provide access to classroom teachers who wish their students to conduct projects over the World Wide Web. Allows students to take pictures with remote pointing and focusing telescopes. Encourages collaboration among schools. (Contains 18 references.) (Author/YDS)

Provides information about each of the planets in our solar system. Focuses on information related to the space missions that have visited or flown near each planet, and includes a summary of what is known about some of the features of each planet. (DDR)