Classroom size is important for children's development and learning. Research shows that in classrooms that are too small, children behave more aggressively and have higher rates of illness. They are also less focused and interact less with others. The recommended space per child is 50 square feet. Additionally, allowing children opportunities to move around different learning centers while visiting special classroom areas is beneficial. When given this mobility, many children learn significantly more than when sitting still. Movement helps children acquire new information more effectively.