Discusses the unique user interface of Apple's Macintosh microcomputer which is changing the way researchers interact with their data. Topic areas addressed include: desktop, mouse, and windows; preparing scientific illustrations; MacPaint; and charts and graphics. Limitations are also noted. (DH)

Describes computer assisted simulation model for studying problems of an ecosystem. Example used is algae-Daphnia-predator system. Problems for students to solve in this ecosystem are described. (PS)

Describes a new software package for the Apple Macintosh computer which can be used to create elaborate simulation models in a fraction of the time usually required without using a programming language. Illustrates the use of the software which relates to water usage. (TW)