External Links SAT Test Day Checklist PSAT: Taking the Tests ACT Test Day Share This! GBS Resources ACT, SAT, PSAT and AP Test Dates PSAT NMSQT Information Freshmen PSAT 8/9 Placement Testing​ AP Exam Schedule AP Exam Information 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