Apparently not. So concludes a pair of studies, one focused on middle school mathematics, and the other on early reading.
Results after one year of providing teachers math professional development (PD) indicate no improvement on their students' math achievement when compared to teachers who did not receive the study-provided PD.
The result is surprising and disconcerting. The professional development provided by the study emphasized fractions, decimals, percents, and ratios. Education students self-report these very topics as their number one weaknesses. Nevertheless, education students are sure to graduate and enter the classroom with their weaknesses intact, even after completing the mandated mathematics coursework.
The early reading study came to a similar conclusion.
Although there were positive impacts on teacher’s knowledge of scientifically based reading instruction and on one of the three instructional practices promoted by the study PD, neither PD intervention resulted in significantly higher student test scores at the end of the one-year treatment.
Eric A. Hanushek, from Stanford University, concluded, "...you can't change ineffective teachers into effective ones." Hilda Borko, an education professor also from Stanford, counters with, "We know teacher change takes time."
The truth is probably a blend of both assertions. A competent, reflective teacher is quick to adopt useful new skills, approaches, or tactics. The discovery of well-designed materials and curriculum induces nearly instantaneous change. Effective teachers are always looking for new tools to add to their every growing collection. If possible, the teacher will roll out the new tool the very next day. If the teacher finds the the new tool requires a major or even minor redesign of lesson plans, materials, and handouts, well, so much for summer vacation travel plans. Being the best that they can be is a core value of effective teachers.
Please follow me to School Crossing for a discussion of underlying factors contributing to the failure of professional development, including
teacher engagement
speed of adoption
credentialing
student and teacher demographics