This document discusses developmental assessment of young children in five areas: cognition, communication, social/emotional development, physical development, and adaptive behavior. It provides brief explanations of each area, including that cognitive developmental problems are often initially detected by teachers, communication plays a major role in brain development, social/emotional development provides the foundation for how children experience themselves and others, physical development involves exploring the world through movement from birth, and adaptive behavior assessments evaluate functional skills and are used to determine eligibility for special education services. Standardized testing is also mentioned as part of the assessment process.