[§302A-638]  Evaluation of teachers and educational officers.  The department shall establish an evaluation program for all teachers and educational officers.  The evaluation shall be performed at least once in each school year.  The program shall define the criteria for evaluation and assign responsibilities for the application of the criteria.  The evaluation of a teacher or educational officer shall be on the basis of efficiency, ability, and such other criteria as the department shall determine. [L 1996, c 89, pt of §2]