Children who begin school behind typically remain behind

There is a convergence of knowledge from neuroscience, child development and economics on the importance of early childhood. A child’s most important brain development occurs before age 5, and children who begin school behind typically remain behind. Early experiences affect the quality of the brain’s architecture — establishing a sturdy or fragile foundation for all learning, health and behavior that follow.

http://theadvocate.com/news/opinion/2186452-123/letter-early-learning-critical.html