Gradebook Formulas for Teachers
Calculate weighted grades and flag students.
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Build gradebook formulas. App: [SPREADSHEET_APP]. Assessment categories and weights: [CATEGORIES_AND_WEIGHTS]. Number of assignments per category and grading scale: [ASSIGNMENTS_AND_SCALE]. Policies (drop lowest score, late penalties, extra credit, missing work): [POLICIES]. Sample data (fake students): [SAMPLE_DATA]. Provide formulas with explanations in a table: Need | Formula | Notes. Cover: category average with blanks ignored (AVERAGE ignores empty cells; zeros count); percentage per assignment (score / points possible); weighted overall grade (SUMPRODUCT of category averages and weights, with a fix when a category has no scores yet by normalizing the weights); drop the lowest score (=(SUM(range)-MIN(range))/(COUNT(range)-1)); late penalty; extra credit; missing work marker vs zero; letter grade from percentage using a lookup table; class statistics (mean, median, distribution); flags for students below a threshold or with missing items; progress tracking over time. Add: how to protect formulas; student privacy (no names in shared copies, restricted access); a check by recalculating three students by hand; and a template layout. Mention that policy details differ by school and must follow school rules. Include test students with expected results.
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