The Peel District School Board straddles the outskirts of the Greater Toronto Area, with more than 150,000 students enrolled in its elementary and secondary schools. Visible minorities make up more than half of this culturally and linguistically rich catchment area. And occasionally, local controversy erupts when the progressive mandate of the provincially-run education system accelerates headlong into the more conservative attitudes of local parents, especially when it comes to sex education. Indeed, Ontario Premier Doug Ford campaigned successfully on a promise to roll back the most progressive elements of the curriculum put in place by the previous (Liberal) government. But the problem runs deeper than discussions of birth control and safe sex: A recent Peel District controversy over Harper Lee’s classic 1960 novel To Kill a Mockingbird shows how wide this gulf has grown between ordinary parents and the professional class that presumes to oversee the educational system. “To Kill a Mockingbird may only be taught in Peel secondary schools, beginning this school year, if instruction occurs through a critical, anti-oppression lens,” declared the School …