Describes 10 computer programs used to draw diagrams usually drawn on chalkboards, such as addition of three vectors, vector components, range of a projectile, lissajous figures, beats, isotherms, Snell's law, waves passing through a lens, magnetic field due to Helmholtz coils, and three curves. Several programming tips are included. (JN)

Describes a method to obtain three-dimensional (3-D) representations of data on a computer using commercial data-plotting or spreadsheet analysis software in any personal computer. (JRH)

Describes the use of NASA Spacelink Computer Information Service for Educators to obtain instructional materials and ideas for classroom demonstrations. Uses the free-fall concept of zero gravity as an example. Provides NASA Spacelink contact information. (JRH)

Advantages of using the microcomputer as an interactive electronic blackboard are discussed, and programs and programming techniques are described to illustrate the construction, design, storage, and modification of colorful and animated graphic displays. The methods described are based on use of an Atari 800 microcomputer but could be used on…