Based on the view that the early childhood care and education environment can have a tremendous influence on infant and toddler development, this book will assist early childhood teachers/caregivers in meeting the challenge of creating an effective learning environment for infants and toddlers. The book includes ideas for planning, using, and evaluating learning spaces for infants and toddlers that match their special way of learning. The book is organized in six chapters. Chapter 1 discusses the importance of carefully designing environments to meet infant/toddler needs and to facilitate development in all domains. Chapters 2 through 5 focus on the following specific developmental periods: young infants, mobile infants, young toddlers, and older toddlers. Each chapter begins with developmental considerations relating to each specific age group, then presents learning spaces in the same basic format, including learning objectives, letters to parents, suggested arrangement of equipment and materials, suggested teacher- and parent-collected props, vocabulary lists, suggested activities, suggested experiences with printed materials, and questions to assist teachers/caregivers in evaluating the effectiveness of the learning space. Specific learning areas vary by age group and may include areas related to specific sensory domains, language, construction, books, music, water, friends and family, science and nature, motor activities, housekeeping, art, specific concepts, private places, grocery stores, and transportation. Chapter 6 provides suggestions for building and creating items for the infant/toddler learning areas. A glossary of important terms and a children's book index complete the book. (Contains 17 references.) (KB)