This publication was prepared by the Intermediate Science Curriculum Study (ISCS) for orienting inservice teachers for using individualized activity-centered science programs in their classrooms. The publication is designed to help teachers in training themselves to ask open-ended questions. Various questioning techniques are described along with examples of classroom situations. Helpful suggestions and activities are listed for teachers to perform. A self-evaluation check based on the teachers' views and techniques is provided in the last chapter. Correct answers to these evaluation items are included. The publication is prepared for individualized preparation at the teacher's own pace. (PS)