Ten laboratory exercises on optics are described to clarify concepts involving point objects and converging lenses producing real images. Mathematical treatment is kept to a minimum to stress concepts involved. (PS)

Describes a program of German video tapes developed at the University of South Florida. For information on availability of video tape copies, contact the Office of Educational Resources, University of South Florida, Tampa, Florida. (RS)

Discusses five experimental methods used by senior high school students to provide an accurate calibration curve of magnet current against the magnetic flux density produced by an electromagnet. Compares the relative merits of the five methods, both as measurements and from an educational viewpoint. (JR)

Discusses the vicious circle of perpetuating traditional practices in the use of laboratory organisms. Makes a plea for biology teachers to use new organisms for new tasks, indigenous organisms rather than imported ones, living organisms rather than dead, and organisms to explicate principles rather than as sources of stultifying detail. (JR)

Technical Education is a supplement to Industrial Education. (Editor)