Teachers are responsible for participating in a cohesive teaching team, coordination of curriculum and classroom lesson planning, and ensuring effective management of the day-to-day operational activities of the classroom. This includes, but is not limited to, structuring and implementing lesson plans to ensure developmentally appropriate programming, developmentally appropriate transitional activities, and maintaining the appropriate child/staff ratio. Teachers must understand the children's cognitive, social, emotional, and physical development in order to ensure a safe and stimulating classroom environment where children are actively engaged.