Canada's largest school board is poised to set tough targets to chop the alarming 40 per cent dropout rate among black students to 15 per cent within five years. Through mentors, teacher training and close tracking of the most needy students, the Toronto District School Board's sweeping new Urban Diversity Strategy – to be voted on tomorrow by a board committee and by all trustees next week – would aim to make all intermediate and high schools across the city more sensitive to the demographic roadblocks often facing students of differing backgrounds. The action plan would also target the 25...