The childhood development at early age can be defined as a set of theories, ideologies, and details that elucidate, define and provide justification for the procedures involved in transformation from young, immature to adult and mature status, and functioning. Childhood development is normally distributed into three broad domains such as the physical development domain, the cognitive development domain, and the social, emotional development domain (Salkind, 2002).
The physical development domain of childhood development addresses changes that occur in the body. Such changes may include how children are growing or moving, and how they are identifying their environment (Wadsworth, & Wadsworth, 1984). The cognitive development domain of childhood development relates to the mental development processes such as language development, memory development, and problem solving capability that children often use in order to acquire and use knowledge. Finally, the emotional and social development domain of childhood development focuses on how children learn to handle associations with others, as well as comprehend of their own emotional states (Wadsworth, & Wadsworth, 1984).
The childhood development at early stages is commonly distributed into three subcategories based on age. The first age subcategory comprises the infants and toddlers usually between the age of delivery and 3 years of age. Between births to 8 months, the most significant factor for the children is security with key caregivers, between the ages of 9 to 18 months, infants are mobile and are generally apprehensive with exploration, and between 18 to 36 months, the essential emphasis of development is identity, while the infants tend to be more independent (Wadsworth, & Wadsworth, 1984).
The second phase of development of early childhood development comprises children in kindergarten who are mostly from 3 years of age to 5 years of age. During this period of development, children are branded by prompt gross motor development activities such as jumping, hopping, and skipping, superior small muscles movements for object operation, key improvements in vocabulary and use of language, intellectual depiction of mental concepts, and the increase of associations with others of the same age group (Wadsworth, & Wadsworth, 1984).