This guide, part of a series of workplace-developed materials for retraining factory workers, provides teaching materials for a workplace course in writing memos. The course covers recognizing the audience for a memo, identifying the topic, organizing the writing using four steps (think, write, review, correct) writing complete sentences, using correct punctuation, and using a standard memo format. It includes sample applications using memos common in the workforce. The introductory materials include course objectives, a topical outline, teaching methods, materials needed, and evaluation methods. Lesson plans for three sessions are provided. The session materials include teaching notes, information sheets, exercises, and worksheets. (KC)