2020-05-072020-05-072015-12-04Keystone exams (2015)http://hdl.handle.net/20.500.12613/220This fact sheet provides a brief introduction to Pennsylvania's Keystone Exams and provides information on opting out, requesting a waiver, or challenging the exams.1 pageengAll Rights ReservedEducational tests and measurements--United StatesEducation--Standards--United StatesText