Teachers will develop an evaluation system which will result in quarter and exam grades which will include “A,” “B,” “C,” “D,” or “F.”  The grade of "D,” while passing, represents clearly unsatisfactory performance.  The quarter grade indicates the teacher's judgment of the student's mastery of the subject materials offered in the course.  It is determined by a variety of assessment measures including teacher observation, teacher tests, projects, essays, and in some instances district, state and national tests.