Code
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Meaning
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circled number
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This is the number of points you have been awarded for that problem.
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cross out
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This is incorrect.
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check mark
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This is correct, or at least is correctly concluded from previous errors.
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question mark
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The
grader cannot understand what this part of your answer means, or where
it came from, or how it relates to the problem or the rest of the
solution.
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Reasoning/explanation problems
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R1
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You need to show more work to illustrate your thought process.
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R2
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Your reasoning is not valid.
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R3
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Your explanation is unclear or awkward, suggestive of the possibility that your understanding might be weak.
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R4
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There appear to be multiple answers here, at least one of which is incorrect.
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R5
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Your answer seems to correspond to a different question than what was asked.
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R6
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Your answer uses a method that is disallowed for this problem. |
R7
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Your answer uses a method that is not allowed in this course. |
R8
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Your argument shows the converse of what you were supposed to show; this is not logically equivalent.
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Notational problems
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N1
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This
notation is not standard, and should not be used. (See General
Comments page.) If this is a notation you are accustomed to, or
if you do not know how else to write it, please talk to the instructor
to determine the notation that should be used in this course.
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N2
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The grader cannot make sense out of the notation you have used.
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N3
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The grader cannot read your handwriting. (See General Comments page.)
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N4
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The grader cannot distinguish your handwritten representation of certain symbols. (See General Comments page.)
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N5
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You are using an equal sign incorrectly. (See General Comments page.)
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Algebraic/arithmetic errors
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A1
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This appears to be a transcription error.
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A2
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You need to simplify your answer. (See General Comments page.) |
A3
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This appears to be an arithmetic error or inadvertent error in algebra.
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A4
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This
error suggests a serious
problem with your algebraic skills. You should take
appropriate actions to ensure that you achieve algebraic proficiency,
which is assumed for this course. (See General Comments page.)
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