``Five Applications of MaxMin Theory from Calculus,'' by Thurmon Whitley, UMAP 341. In this module several unconstrained optimization problems are solved using the calculus. Scenarios addressed include maximizing profit, minimizing cost, minimizing travel time of light as it passes through several mediums (Snell's law), minimizing the surface area of a bee's cell, and the surgeon's problem of attaching an artery in such a way as to minimize the resistance to blood flow and strain on the heart.