The statements describing a strong and weak feature of a response to an item, a question, or a project are assessments of a collection of the student's work in an area showing growth, self reflection, and achievement grades given according to a student's rank in his or her class or grade grading requiring an established standard of mastery such as 80 or 90 percent correct on a test. Students who do not achieve it the first time may receive corrective instruction and ten retake the test to try to achieve mastery.