Points out that the secret of successful Logo teaching appears to lie in knowing when to intervene and when not to. Sample programs and instructional sessions are included to illustrate when to intervene without intercepting student discovery. (JN)

Provides information on Logo, a powerful computer language that allows students to control their own learning. Includes list of available Logo and Turtle Graphics programs (publisher, manufacturer, hardware requirements, software/print materials, and price included). Cautions buyers to beware of imitations which may not support all Logo features…