A new edition of the teacher's manual for developing self-directed "learning environments" for preschool children and facilitating the children's development through observation and support. Beaty (Professor Emerita, Elmira College) describes how to set up "centers" in the classroom, activities to support specific development, and observation techniques based on blocks, computers, manipulative/math, books, writing, art, music, science, dramatic play, and large motor. The second edition emphasizes more computer, reading, and math skills. Annotation c. by Book News, Inc., Portland, Or.