France scrambles to deploy supply teachers, but will it be enough to quell student anger?

Student unions in France are hailing what they see as a major concession from the French government after more than two weeks of often violent nationwide student protests: the urgent deployment of some 3,000 supply teachers to schools with the greatest staffing needs. But where exactly are these teachers coming from? And will the move be enough to quell fresh protests, especially amid a renewed debate about overzealous policing tactics?