Difference Between Convergent and Divergent Evolution. When considering living organisms, evolution can be defined as the development of differentiated organisms from less differentiated pre-existing organisms over the course of time. There are many sources, which provide evidence to the theory of evolution.
You're apparently differentiating between daycare and preschool, right? Private preschools (about $500 per month for three days per week, 9:00a to 1:00p) typically have a minimum age of 30 months (2.5 years) and potty-trained.
Still others advocate screening four-year-olds who may be ready for school for early entry, despite a fifth birthday after the statutory deadline. All states require children to turn five in the year they enter kindergarten, however, and no state has a minimum entrance age of six. The states differ only on when during the school year a child must have had his fifth birthday, from July 1 in Indiana to January 1 in Connecticut and Vermont. ISSUES RAISED BY CHANGING KINDERGARTEN MINIMUM AGE. We did not find any information regarding raising the minimum age for kindergarten from five to six.