(a) The purposes of the Foundation School Program set forth in this chapter are to guarantee that each school district in the state has:
(1) adequate resources to provide each eligible student a basic instructional program and facilities suitable to the student's educational needs; and
(2) access to a substantially equalized program of financing in excess of basic costs for certain services, as provided by this chapter.
(b) The Foundation School Program consists of:
(1) two tiers that in combination provide for:
(A) sufficient financing for all school districts to provide a basic program of education that is rated acceptable or higher under Section 39.054 and meets other applicable legal standards; and
(B) substantially equal access to funds to provide an enriched program; and
(2) a facilities component as provided by Chapter 46.