GRADING_SCALE = (
    (1, 'Grade 1'),
    (2, 'Grade 2'),
    (3, 'Grade 3'),
    (4, 'Grade 4'),
    (5, 'Grade 5'),
)

GRADING_SCALE_234 = (
    (2, 'Grade 2'),
    (3, 'Grade 3'),
    (4, 'Grade 4'),
)

GRADING_SCALE_34 = (
    (3, 'Grade 3'),
    (4, 'Grade 4'),
)
