(1) To be consistent with the philosophy of least restrictive alternative for education and to maintain a continuum of alternatives which assures the best possible availability of services and materials, the board authorizes the Montana school for the deaf and blind to provide regional services of itinerant con-sultants and instructional tools, materials and books from the center at the school in Great Falls, and that these services shall be made available to all school districts in the state and shall function in cooperation with the regional offices for special education.