The following words and phrases, as used in this article, shall, unless a different meaning is plainly required by the context, have the following meaning:
"General extension education" shall designate the instructional and recreational services listed below that are provided and administered by the board of school directors of any school district, but shall not include activities which are subsidized under the provisions of Federal enactment nor the coaching or supervision of interscholastic athletic teams or games.
The areas of "extension education" for which local school districts receive reimbursement from the Commonwealth, as provided in section 1146, shall be as follows:
Recreation activities for children and youth from the ages of six (6) to twenty-one (21).
24 P.S. § 19-1901