The document discusses child development from conception to seven years. It covers the key stages and sequences of development in cognition, speech/language/communication, physical development, and personal/social/emotional development. Cognitive development involves learning about and interacting with the world. Speech and language development begins with cries and expressions as babies and progresses to communicating needs in various ways. Physical development is rapid in the first two years as babies double and triple their birth weight and grow significantly in length and brain size.