Summer School registration closes on Friday, May 13, 2022. Only students who reside within the geographic boundaries of CUSD 10 can enroll in 2022 Summer School. FOR COMPLETE INFORMATION ON 2021 SUMMER SCHOOL: Collinsville High School 2022 Summer School Program – REVISED Informational Packet OR Programa de Escuela de Verano para la Preparatoria de Collinsville […]