External Links SAT Test Day Checklist PSAT: Taking the Tests ACT Test Day Share This! Testing Updates AP GBS Exam Update 2/26/2021 Advanced Placement: 2021 AP Exam Information College Board Coronavirus Updates ACT COVID-19 Updates ACT Opportunity and SAT Make Up Information GBS Resources ACT, SAT, PSAT and AP Test Dates (2020-2021) PSAT NMSQT Information AP Exam Information AP Exam Schedule 2021 - Updated AP Exam Registration (enrolled in AP class) AP Exam Registration (NOT enrolled in AP class) AP Exam Waiver​ Testing Accommodations Information Differences Between ACT/SAT​ Test Preparation Contact us Rene Redfern Testing Coordinator rredfern@glenbrook225.org 847.486.4540 Cameron Muir Associate Principal for Curriculum and Instruction cmuir@glenbrook225.org 847.486.4404 Joan Agins Executive Assistant jagins@glenbrook225.org 847.486.4405