Collinsville High School accepts summer school registration on a first-come, first-served basis. The dates for this year’s summer school program are from May 21, 2024 to June 12, 2024 with two different time slots: a morning session from 8:00-11:00 a.m. and an afternoon session from 11:30 a.m. – 2:30 pm. Registration for summer school opens […]