This report compares average rates of frequent teacher absence (more than 10 days) for teachers with and without union or union-like contracts in traditional public schools and charter schools. The study's rationale is that such absences substantively harm students and cost taxpayers billions of dollars. It finds that teachers contractually…

Research confirms what common sense dictates: Students learn less when their teachers aren't there. According to multiple studies, a ten-day increase in teacher absence results in at least ten fewer days of learning for students. Clearly, some absences are unavoidable--teachers are only human. But compared to their counterparts in other industries…