sentences:  The type of project, its rigor and its expectations are set by the individual school district.By Pennsylvania State School Board regulations, beginning with the graduating class in 2016, students must demonstrate successful completion of secondary level course work in Algebra I, Biology, English Composition, and Literature for which the Keystone Exams serve as the final course exams.Students’ Keystone Exam scores must count for at least one-third of the final course grade.