GCC American Sign Language Class Visits GSAT by Guam CEDDERS Guam System For Assistive Technology (GSAT) AT Coordinator, Leah Abelon, demonstrated the use of various AT devices on January 18-19, 2017 for students enrolled in Guam Community College’s American Sign Language classes. Eighty-two students attended the demonstrations which took place in AT Model Home located at House 20 Deans Circle, on the University of Guam campus. Guam Systems for Assistive Technology