Revise education laws related to PIR days and meetings of teacher organizations

This bill amends Montana education laws to restrict how pupil-instruction-related days can be used and changes requirements for school closures during teacher organization meetings. It removes the mandate that school trustees must close schools for annual meetings of teacher organizations and clarifies that pupil-instruction-related days cannot be used for attending state meetings of teacher organizations. The legislation also adjusts payment rules for teachers attending professional development meetings, stating that teachers may attend without loss of salary but may not be paid if they do not attend. These changes take effect on July 1, 2025, and directly affect school districts, teachers, and the Montana Board of Public Education.