External Links SAT Test Day Checklist PSAT: Taking the Tests ACT Test Day Share This! GBS Resources ACT, SAT, PSAT and AP Test Dates 2018 PSAT NMSQT Information 2018 Freshmen PSAT 8/9 Placement Testing​ 2019 AP Exam Schedule 2019 AP Exam Information 2019 AP Exam Registration (enrolled in AP class) 2019 AP Exam Registration (NOT enrolled in AP class) 2019 AP Exam Waiver 2019 AP Pre-Administration "Bubbling" Sessions Testing Accommodations Information Differences Between ACT/SAT​ Test Prep Options 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