Describes eight characteristics of good educational software. They are: (1) educational soundness; (2) ease of use; (3) "bullet" proofing (preventing a program from coming to a premature halt); (4) clear instructions; (5) appropriate language; (6) appropriate frame size; (7) motivation; and (8) evaluation. (JN)

Presents the listing for a TRS-80 Model III program which illustrates the first law of robotics (all robots must be programed so that none of their actions will be harmful to man). Also discusses the rational for and development of the program. (JN)

Examines issues which emerged during the development of estimation materials produced by the Technology and Basic Skills-Mathematics (TABS) project. Special attention is given to the use of feedback in computer-based instruction on estimation. (JN)

Presents a lesson plan format which enables teachers to incorporate simulations into their classroom activities. Particular attention is given to planning for the interactions students should have while engaged with the simulation. Includes cognitive and affective results obtained from trials of the format with elementary/middle school students…