This book presents nine packages of learning materials for trainers to use in teaching community health workers to carry out the nutrition element of their jobs. Lessons are intended to help health workers acquire skill in presenting to communities the principles and practice of good nutrition. Responding to the most common causes of poor nutrition in developing countries, each learning package follows a problem oriented approach, featuring questions and answers, checklists, charts, games, stories, tests, and exercises designed to make learning a participatory experience. Each package focuses on a single topic, concentrating on helping trainees learn how to recognize and correct the causes of such common problems as nutrient deficiencies, deficiency induced diseases, malnourishment, poor childhood growth, and diarrhoeal diseases. (JD)