Guidelines to use when solving complex design problems and two illustrative examples were presented in Volume 16 (No. 1), page 12 of this journal. Two additional examples are presented, focusing on ASCEND-II, a flowsheeting system to help "design" a computer model for a process. (SK)

Describes a one-dimensional model for an ideal gas to study development of disordered motion in Newtonian mechanics. A Monte Carlo procedure for simulation of the statistical ensemble of an ideal gas with fixed total energy is developed. Compares both approaches for a pseudoexperimental foundation of statistical mechanics. (Author/JN)

Described is part of the O.P.E. laboratory computer-based biology program designed for undergraduate medical and biology students. Described is an embryology dialogue in which the student proceeds through three stages in the knowledge and understanding of the concept of competence. (Author/DS)