At SAIL High School, assessment follows the Polish 1–6 grading system, where 1 is the lowest and 6 the highest. Students receive individual grades for each subject, reflecting both achievement and ongoing effort. A variety of fair and transparent assessment methods are used — including tests, short quizzes, homework, oral participation, classroom activity, projects, and additional assignments, depending on the subject. The assessment methods and their weighting are presented by each subject teacher at the beginning of the school year.
At the end of each semester, students receive a comprehensive report card with grades and detailed teacher comments for every subject. Parent–Teacher Meetings are offered twice each semester to ensure close communication and support. In the final year (H4), students may also choose to take Cambridge International examinations or the Polish Matura exam, though neither is obligatory for SAIL students.