The digital age has transformed child development, introducing new challenges and opportunities. From smartphones to social media, children now navigate a complex digital landscape that influences their cognitive, social, and emotional growth. This unit explores how technology shapes young minds and the strategies for fostering healthy development in the digital era. Key theories like ecological systems and social learning provide frameworks for understanding children's digital experiences. We examine how online interactions affect cognitive skills, social relationships, and identity formation. The unit also covers digital literacy, online safety, parental mediation, and emerging technologies, offering insights into nurturing well-rounded digital natives.