Diane Staehr Fenner is president of DSF Consulting, LLC, and blogger for Colorin Colorado. Her most recent book, coauthored with Peter Kozik and Ayanna Cooper, is Evaluating All Teachers of English Learners and Students with Disabilities: Supporting Great Teaching (2015, Corwin). She is also the author of Advocating for English Learners: A Guide for Educators (2014, Corwin).