Recent and exciting discoveries in astronomy and cosmology have inspired many high school students to learn about these fields. A particularly fascinating consequence of general relativity at the forefront of modern cosmology research is gravitational lensing, the bending of light rays that pass near massive objects. Gravitational lensing enables…

Describes a physics demonstration show where students conduct demonstrations for the rest of the school. By demonstrating a concept, students are forced to learn that concept in depth. Appendix includes a physics demonstrations resource list. (JRH)

Defines a few major reasons for the frequent failure of laboratory instructional methods and outlines some modes of thinking that seem to promise greater effectiveness and firmer justification for maintaining the laboratory as an essential component of physics teaching. (MVL)

Suggests a way to change the role of physics teacher. Discusses the teacher as a coach, reducing anxiety, team cooperation, and a grading system including "forgiving learning" which recognizes student's progress. (YP)