Grading in education
| Academic grading | 
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| Africa | 
| North America | 
| South America | 
| Asia | 
| Europe | 
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| Oceania | 
Grading in education is the application of standardized measurements to evaluate different levels of student achievement in a course. Grades can be expressed as letters (usually A to F), as a range (for example, 1 to 6), percentages, or as numbers out of a possible total (often out of 100). The exact system that is used varies worldwide.