The New Youth Entrepreneur curriculum is a series of 12 youth-oriented educational modules containing instructional materials, learning activities, and checkup exercises designed to teach students key elements of entrepreneurship. This document is the eleventh module, and focuses on issues related to managing the day-to-day affairs of a small business. Following introductory materials on the importance of efficiently managing a business, the first section describes the duties of owners and managers related to planning, organizing, directing, controlling, and evaluating. The next sections describe the following duties of owners and managers: (1) purchasing, including deciding where and how much to buy; (2) pricing goods and services, reviewing fixed and variable costs, describing the cost and markup approaches to price setting, defining the "break-even point," and providing exercises for determining prices; (3) selling to the customer, reviewing the importance of knowing customers, knowing the product, informing customers, and being truthful and reliable; (4) personnel selection, highlighting common sources of employees; and (5) record keeping, describing what type of information should be kept. The final section reviews strategies for effective time management in carrying out duties. (CELCEE, an Adjunct ERIC Clearinghouse on Entrepreneurship Education) (MAB)