The document outlines a chapter on aggregate planning from an operations management textbook. It discusses aggregate planning strategies like changing capacity, demand, and mixes. Graphical and mathematical methods for aggregate planning are presented. An example shows a roofing supplier developing two aggregate plans - one with constant production and the other varying production monthly. Key costs like inventory carrying and labor costs are provided to analyze the plans. The learning objectives cover defining aggregate planning, identifying strategies, and solving problems graphically and mathematically.