This manual is designed as a laboratory experience guide and workbook for postsecondary students in courses on caring for infants and toddlers in a child care setting. It is divided into six units: (1) Guidance and Interactions, (2) Physical Development, (3) Intellectual Development, (4) Social and Emotional Development, (5) Environments, and (6) Nutrition and Health. Each unit includes performance objectives, an overview of the unit topics, suggested readings for in-depth study, and laboratory experiences that require the student to observe and participate in the care of infants and toddlers in a child care setting. For each observation or participation experience, a sheet is provided that details the learning objective and directions and provides key questions to be answered. Each unit includes participation evaluation forms to be completed when the instructor observes the student during a participation exercise. Other components of the manual are "Guidelines for Successful Lab Experiences," a glossary, and a bibliography. (YLB)