Original sentence: Some have attributed this to the educational policies of Mike Harris' Conservative government.The school, which in the mid-'90s had an enrolment of over 2300 students and a staff of perhaps 150, was once known for its Grade 9 and 10 Gifted Program, Talented Athlete Program, musicals and other arts programs, all of which were cut or starved in the late '90s as a result of political pressures in the Board, and ostensibly an effort to lower the student population.This era saw the retirement or transfer of many dedicated teachers, the firing and hiring of new department heads, frequent curriculum changes, the discontinuing of many specialty courses as the OAC program (Grade 13) was eliminated, frequent labour unrest and other disruptions
Edited sentence: In the mid-'90s it had an enrolment of over 2300 students and a staff of perhaps 150.This era was marked by upheaval caused by the misguided educational policies of Mike Harris' Conservative provincial government, which saw the retirement or transfer of many dedicated teachers, the senseless firing and hiring of new department heads, frequent curriculum changes, the discontinuance of many specialty courses as the OAC program (Grade 13) was eliminated, frequent labour unrest and other disruptions.Thornlea was known for its Grade 9 and 10 Gifted Program, Talented Athlete Program, and its musicals and other arts programs, all of which were cut or starved in the late '90s as a result of political pressures in the Board, and ostensibly due to an effort to lower the student population