Just make sure you leave before they read the headline findings. TNTP estimates that, on average, districts spend a whopping $18,000 on professional development per teacher per year (cue coffee spit-take). One would think all that spending would provide some decent returns. Not so—few teachers showed improvement, and no clear connections emerged between professional development and teachers' improvement. When planning next year's budget, districts may want to think about whether all this cost is going to result in much benefit.
Want our take? Find it here: TQB