Mathematical knowledge: Shows very limited understanding of the problem's
mathematical concepts, and principles; may misuse or fail to use mathematical
terms; and may make major computational errors.
Strategic knowledge: May attempt to use irrelevant outside information; fails to
identify important elements or places too much emphasis on unimportant elements;
may reflect an inappropriate strategy for solving the problem; gives incomplete
evidence of a solution process; solution process may be missing, difficult to
identify, or completely unsystematic.
Communication: Has some satisfactory elements but may fail to complete or may
omit significant parts of the problem; explanation or description may be missing or
difficult to follow; may include a diagram which incorrectly represents the problem
situation, or diagram may be unclear an difficult to interpret