1-2 Short Paper Module: One Essay Southern New Hampshire University PSY 321 Child Development 09:26:07 GMT -05:001-2 Short Paper: Module One EssayWhat is child development? Child development is the changes that the child experience throughout their life span. According to (Lightfoot et al., 2018) mentioned that “ developmentalist divide the time between conception and the start of adulthood into five broad periods: the prenatal period, infancy, early childhood, middle childhood, and adolescence. Each period is marked by major changes in children’s bodies and in how children think, feel, and interact with othersâ€. (Lightfoot et al., 2018) also explained that “each is also marked by significant changes in how children are treated by members of their society as a consequence of cultural assumptions and expectations about what children can and should be doing at different agesâ€. “The early years of a child’s life are very important for their health and development. Healthy development means that children of all abilities, including those with special health care needs, are able to grow up where their social, emotional, and educational needs are met. Having a safe and loving home and spending time with family playing, singing, reading, and talking are very important.