This guide details the core competencies for early care and education professionals in Kansas and Missouri. The guide's introduction provides background information about what core competencies are, why they are important, and how they can be used by practitioners, directors, trainers, higher education faculty, agencies, and professional development programs. The core competencies in eight content areas are delineated: (1) child growth and development; (2) learning environment and curriculum; (3) child observation and assessment; (4) families and communities; (5) health, safety, and nutrition; (6) interactions with children; (7) program planning and development; and (8) professional development and leadership. Each of the eight content areas contains five levels that range from the skills and knowledge of a beginning professional to the more advanced skills and knowledge possessed by someone with a master's degree. The core competencies are designed as a framework for improving teaching and learning. The guide concludes with a professional development record form for teachers/caregivers to document their professional development activities. (KB)