Weighting Grades

To weight two grades to be 90 and 10 percent of the final grade, multiply the numerical equivalent of the first grade by 9 and the numerical equivalent of the second grade by 1; total those figures and then divide by 10. Follow the same procedure for other weighting ratios (for a 70 -- 30 split, multiply the first number by 7, the second by 3, and divide their sum by 10; and so on).

Alternatively, you may decide not to differentiate between informal and formal assessment measures, using the formal test results to inform your judgments about student growth and achievement as you fill out your rubrics for each student.

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