Guides
GPA Guides — In-Depth Articles
In-depth guides on GPA mechanics, grade scales, college admissions, and academic standing — written from verified sources. Browse by category below.
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Grade Calculation
What Percentage Is a B+? A Full Grade-to-Percentage Reference
Every letter grade from A to F with standard percentage ranges (B+ = 87–89%), the most common scale variants (93-threshold, 90-threshold, 10-point), how to find your school's exact cutoffs, and the full percentage-to-GPA-point mapping.
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#74How Extra Credit Actually Affects Your Grade (With Math)
Two types of extra credit — points-based and flat bonus — with exact formulas, worked examples, a table of how much EC is needed to move one letter grade, when EC can rescue a failing grade, and how EC interacts with weighted categories.
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#75How Dropped Lowest-Score Policies Affect Your Final Grade
The drop-one and drop-two formulas with worked examples, when dropping helps most vs. least (large outlier vs. clustered scores), how drop policies interact with weighted categories, the strategic question of whether to skip an assignment intentionally, and how LMS gradebook systems apply drops automatically.
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#76Midterm Grade vs Final Grade: How Much Does the Final Really Count?
The pre-final weighted average formula, how to calculate the exact score needed on a final exam to reach a target course grade, a three-student worked example table, scenario analysis by final weight (30%–50%), how replace-lowest and highest-of policies work, and GPA boundary strategy for high-stakes finals.
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#77How to Calculate a Group Project Grade That's Split Unevenly
Four group-project grading structures — shared grade, peer-adjusted individual grade, group-plus-individual, and contribution-weighted — with formulas and worked examples for each, peer evaluation math, academic integrity considerations, and a comparison table to identify which structure your course uses.
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#78EZ Grader Logic Explained: How Teachers Grade Tests by Percentage Correct
How the EZ Grader slide rule works (percentage-correct formula), grading charts for 20-, 25-, and 30-question tests with letter grade cutoffs linked to the 4.0 scale, how to build your own EZ Grader in a spreadsheet, non-round test lengths, the curved EZ Grader (three methods), and how to check your own grade using EZ Grader logic.
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#79How to Calculate Your Grade With Multiple Exams of Different Weights
The weighted average formula for multi-exam courses, three worked examples with tables (equal-weight, unequal-weight, cumulative), scenario analysis for required scores on upcoming exams, how category-weight syllabi translate to individual exam weights, running grade tracking methods, and how to optimize study time by marginal grade value per exam weight.
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#80What's the Difference Between a Grade Curve and Grade Inflation?
A grade curve is a one-time professor-applied adjustment for a specific exam; grade inflation is the decades-long rise in average GPAs across US institutions. This guide explains both, what the research evidence shows, what causes grade inflation, how it varies by field and institution type, how graduate programs and employers respond to it, and what it means for your GPA strategy.
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#81How Late Penalties Affect Your Final Grade (With Examples)
Flat deductions, percentage-per-day penalties, tiered cutoffs, and hard deadlines — worked examples, syllabus decoding, and GPA-boundary recovery strategies.
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#82Rubric-Based Grading Explained: How Points Become a Letter Grade
Analytic, holistic, and single-point rubrics explained — how examiners turn criterion scores into letter grades and how to use rubrics strategically before you submit.
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Academic Systems
AP Exam Scores vs AP Course Grades: How Each Affects Your GPA
AP course grades raise your weighted GPA; AP exam scores determine college credit and placement. This guide covers both systems, how they diverge, and what selective colleges look for.
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#84IB Diploma Points vs IB Course Grades: What Colleges See
The IB 1-7 subject scale, 45-point diploma total, EE/TOK bonus points, HL vs SL credit thresholds, and how US colleges interpret both your school letter grades and your IB results.
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