We use criteria because it is more equitable than the traditional grading (0-100 scale, percents, etc).
Since traditional gradebooks can include things like extra credit, class participation, behavior “grades,” etc. AND since traditional gradebooks can be weighted in any way that a teacher wants (tests, quizzes, homework, participation, etc can be weighted differently in different classes), serious inconsistencies can occur. Inequitable grading practices and significant grading variations from class to class often occur in traditional grading systems.
At International, students see the same criteria in each subject over the course of years, and teachers in a given subject score student work using the same criteria. This gives students, families, and their teachers a more consistent picture of their achievement over time.