Provide state funding for preschool children with disabilities

This bill amends Montana's school funding law to allow state financial support for preschool children with disabilities by including them in the Average Number Belonging (ANB) calculations used to determine school district funding. Previously, only preschool programs created at the discretion of school trustees were excluded from these calculations, which meant children with disabilities receiving mandatory special education services had no mechanism for state funding. The key provision adds a new clause to the existing statute that permits counting preschool children with disabilities in ANB based on their aggregate hours of pupil instruction, aligning their eligibility with other special education students. This change directly affects school districts by creating a funding pathway for the special education programs they are already required to provide for three- and four-year-old children with disabilities.