Proposes an enhanced approach to teaching topics in ecology--an approach that uses mathematical models and A Programming Language (APL) to produce short, quickly comprehensible computer "programs" that can be run to allow students to study the behavior of a particular model. (Author/IRT)

Describes a four-phase method of helping students who are mathematically unsophisticated and have difficulty relating their common sense, English-language understanding of a system to an abstract, mathematical description. The approach uses interactive simulation models. (Author/IRT)