Principals must develop and sustain school structures and cultures that foster individual and group learning. That is, principals must stimulate an environment in which new information and practices are eagerly incorporated into the system. Teachers are more likely to pursue their group and individual learning when there are supportive conditions in the school, such as particularly effective leadership (English, 2008; Northouse, 2010). Schools where teachers collaborate in discussing issues related to student learning are more likely to be able to take advantage of internally and externally generated information. Teachers can become willing recipients of research information if they are embedded in a setting where meaningful and sustained interaction with researchers occurs in an egalitarian context