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X2 Explanation shows complete understanding of the mathematical concepts used to solve the problem(s).
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X2 Explanation shows substantial understanding of the mathematical concepts used to solve the problem(s).
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X2 Explanation shows some understanding of the mathematical concepts needed to solve the problem(s).
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X2 Explanation shows very limited understanding of the underlying concepts needed to solve the problem(s) OR is not written.
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90-100% of the steps and solutions have no mathematical errors.
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Almost all (85-89%) of the steps and solutions have no mathematical errors.
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Most (75-84%) of the steps and solutions have no mathematical errors.
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More than 75% of the steps and solutions have mathematical errors.
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Diagrams and/or sketches are clear and greatly add to the reader's understanding of the procedure(s).
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Diagrams and/or sketches are clear and easy to understand.
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Diagrams and/or sketches are somewhat difficult to understand.
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Diagrams and/or sketches are difficult to understand or are not used.
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Correct terminology and notation are always used, making it easy to understand what was done.
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Correct terminology and notation are usually used, making it fairly easy to understand what was done.
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Correct terminology and notation are used, but it is sometimes not easy to understand what was done.
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There is little use, or a lot of inappropriate use, of terminology and notation.
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The work is presented in a neat, clear, organized fashion that is easy to read.
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The work is presented in a neat and organized fashion that is usually easy to read.
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The work is presented in an organized fashion but may be hard to read at times.
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The work appears sloppy and unorganized. It is hard to know what information goes together.
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All steps are shown. It is clear how the solutions were arrived at.
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Most steps are shown. It is mostly clear how the solutions were arrived at.
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Some steps are shown. It is somewhat clear how the solutions were arrived at.
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No steps are shown. It is unclear how the solutions were arrived at.
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