ABSTRACT
Constructing a mathematical model from a given context involves several interconnected steps: (1) naming variables and parameters, (2) determining a differential equation from the context, and (3) solving the differential equation using graphic, numerical, or exact solution techniques. This chapter develops tools and techniques to describe a system of differential equations from a contextual situation. Modeling tools such as the Law of Mass Action and different functional responses are introduced to describe nonlinear rates of change.
