Summer-Fall 1993

A Polluted Lake; More on the Polluted Lake; Discovering Differential Equations; Differential Equations, Football, and Chase Problems

Cover
Announcements
A Polluted Lake By Mahmoud fath El-Den: In this paper, we will consider the familiar problem of pollution in a lake in a relatively general setting. A computer package will be used to find and investigate the solution of the differential equation that models the problem with different initial conditions. By bringing this kind of technology into the classroom, we will show that many hard topics and ideas can be discussed, even in an elementary differential equations course, and a wider range of students will be able to grasp the material better.
More on the Polluted Lake By Anne Noonburg: Anne Noonburg adds rainfall and evaporation to the model explored by fath El-Den earlier in this issue.
Discovering Differential Equations By Margie Hale: Margie Hale describes her experience teaching a differential equations course in a laboratory equipped with 10 Sparc workstations at Ithaca College.
Differential Equations, Football, and Chase Problems By Steven Dunbar: College football is a favorite American spectator sport, so a differential equations project involving football is almost guaranteed to generate student interest. It’s especially popular here at the University of Nebraska-Lincoln, where Husker football is a tradition. The author presents a classic chase problem in differential equations posed as final seconds cliff-hanger.
Back matter