The first four units cover aspects of medical applications of calculus: 71-Measuring Cardiac Output; 72-Prescribing Safe and Effective Dosage; 73-Epidemics; and 74-Tracer Methods in Permiability. All units include a set of exercises and answers to at least some of the problems. Unit 72 also contains a model exam and answers to this exam. The fifth unit in this set covers applications to economics: 75-Feldman's Model. This mathematical model describes the behavior over time of a two-sector economy in which sectoral investment allocations are controlled by a central authority according to an overall economic plan. The unit includes exercises and answers. The next three modules focus on Graphical and Numerical Solution of Differential Equations: 81-Problems Leading to Differential Equations; 82-Solving Differential Equations Graphically; and 83-Solving Differential Equations Numerically. The three-unit group contains a total of five quizzes and one exam, and answers are provided for all in appendices. The last unit covers applications of calculus to chemistry: 234-Radioactive Chains-Parents and Daughters. (MP)