(a) A contract between a school district and an educator must be for a minimum of 10 months’ service.
(b) Except as provided by Subsection (c-1), an educator employed under a 10-month contract must provide a minimum of 187 days of service.

(c) The commissioner, as provided by § 25.081(b), may reduce the number of days of service required by this section. A reduction by the commissioner does not reduce an educator’s salary.
(c-1) If a school district anticipates providing less than 180 days of instruction for students during a school year, as indicated by the district’s academic calendar, the district may reduce the number of days of service required by this section proportionately. A reduction by the district does not reduce an educator’s salary.
(d) Subsections (a) and (b) do not apply to a contract between a school district and an educational diagnostician.