This assignment delves into the crucial role of nurses in promoting the well-being of children during various developmental stages. It examines different theories of human development, such as Piaget's and Vygotsky's, highlighting their influence on a child's cognitive, physical, and socio-emotional growth. The essay emphasizes how nurses can leverage these theories to create holistic care plans that address individual needs and support milestones achievement. A specific case study of a child named Jack who faces challenges with toileting is used to illustrate the practical application of developmental theories in nursing practice.