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.
For the key group of target children (who were 3 and 4 years old at baseline), enrollment in treatment communities was 55.6% compared to 11.7% in control, resulting in a program impact of 43.9 percentage points (or 375%) in preschool enrollment.3% of teachers are female and the average age is 33. The average number of years of education is 6.2 years, exceeding the minimum of 4 years required by the program for participation as a teacher. More than half of teachers have a child enrolled in the preschool.