This document contrasts the theories of Lev Vygotsky and Eleanor Gibson on child development. Vygotsky's socio-cultural approach views development as social in nature, influenced by cultural tools and interactions within the zone of proximal development. Gibson's ecological theory sees development as the process by which children differentiate their perceptions to extract meaningful information from the environment through their senses. Both theories offer insights for education, such as assessing children's developmental levels and designing learning experiences that incorporate social interactions, hands-on exploration, and making meaning from the environment.