Too Many Professional Development ‘Horror Stories’ is the headline of my latest Education Week Teacher column.

This four-part series on professional development is wrapping-up with responses from PJ Caposey, Laura Robb, Dr. Barbara Blackburn, Pete Hall, Fred Ende, Emily Phillips Galloway, Paola Uccelli,Nonie K. Lesaux, and Meredith Allen.

Here are some excerpts: