The main stages of human development are the prenatal period, Infancy, early childhood, middle and late childhood, adolescence, early adulthood, and late adulthood (Santrock, 2015, p. 14). The prenatal stage starts at conception and ends with child birth (Santrock, 215, p. 14). The infancy stage starts with child birth and ends somewhere close to two years old (Santrock, 2015, p. 14). The early childhood stage starts around three and ends around five years of age (Santrock, 2015, p. 14). The middle and late childhood stage begins around six years old and ends around the ages of ten and eleven (Santrock, 2015, p. 14). The adolescence stage starts between ages ten and twelve and ends between eighteen and twenty-one (Santrock, 2015, p. 14). The early adulthood stage …show more content…
14). The middle adulthood stage starts at forty and ends around fifty- nine (Santrock, 2015, p. 14). The late adulthood stage starts between the sixties and seventies and when the person passes away (Santrock, 2015, p. 14). The stages of life cover everything from when the egg and sperm join to when we die.
The important hallmarks of each stage.
During the prenatal stage the entire organism is formed including the internal organs and emotional responses (Santrack, 015, p. 13). During the infancy stage a human learns to understand and speak their native tongue, understand that a bottle represents food (symbolism), coordination of movement in response to sensory stimulus (turning the head toward a noise), and begins to develop and understand interactions and relationships with others (Santrack, 2015, p. 13). During early childhood a human learn to respect