The use of picture line-up activities, classroom exercises in which students must place a series of pictures in correct order, is discussed. The advantages of use of a picture series instead of simple pairs are examined, a basic activity is described, and ideas for implementation, adaptation, and follow-up are outlined. The basic activity uses 15-20 numbered pictures, cards with corresponding numbers, and an arrangement of student questioners and clue-givers in small groups that attempt to order the pictures, either competitively or cooperatively. Suggested classroom techniques include a practice round for understanding of the procedures, team structuring, feedback periods following each round, and criteria for picture selection and presentation. Some variations on the basic activity are offered, including an informant/detective game, a travel/geography exercise, identification of rooms in a house, speculation about people, and discussion of relationships between people. Possible follow-up activities include additional readings, classroom discussion extending the theme, and descriptive or explanatory writing exercises. Contains 19 references. (MSE)