Commentary Does the name Lynden Dorval sound familiar? It should. Lynden Dorval was the high school physics teacher who was fired ten years ago by the Edmonton Public School Board for defying his principal’s no-zeroes grading edict. Dorval thought it was ridiculous that teachers couldn’t penalize students who chose not to hand in assignments. He decided to push back. Most people agreed with Dorval. Not only did public opinion polls show overwhelming support for his position, but a provincial appeal board later ruled that he had been treated unfairly by his employer. In short, Dorval won his case, although it was far from easy. The good news is that no-zero policies are much less common today than they were ten years ago. Back in 2012, education consultants were pushing no-zero policies on schools across North America and many administrators decided to adopt this policy. In some provinces, notably Newfoundland and …