Sec. 143.5. "Preschool", for purposes of IC 12-17.2, means a program that provides an educational experience through an age appropriate written curriculum for children at least thirty (30) months of age who are not eligible to enter kindergarten and that:
(1) conducts sessions for not more than four (4) hours a day;
(2) enrolls children for only one (1) session a day;
(3) does not serve meals on the premises;
(4) maintains a child to staff ratio of not more than fifteen (15) children to one (1) staff member;
(5) supervises children at all times with a person who is at least eighteen (18) years of age; and
(6) does not operate for more than ten (10) consecutive days.