This publication is intended to provide teachers with ideas and strategies for using one computer in the classroom. The focus is on elementary school classes, but some activities can be used with older students. Recurring themes are: scaffolding learning, "crap" detection or critical thinking, and knowledge organizing. Chapter 1: "Classroom Management" addresses issues related to handling classroom management decisions, using a computer for record keeping, choosing hardware and software, and dealing with technical issues; Chapter 2: "Ideas for Using Integrated Packages" describes word processing, database, and spreadsheet activities possible with only one computer; Chapter 3: "Knowledge Organizers" covers software that helps teachers and students make sense of isolated information; and Chapter 4: "Teaching With One Computer in the Content Areas" examines software formats and packages for teaching specific content. Five appendixes provide: a sample keyboard diagram, a worksheet for creating a ClarisWorks database, basic information on useful software packages, contact information for software publishers and other resources, and contact information for national educational software distributors. (Includes index.) (DLS)