The busy administrator’s guide to creating strong teams, changing culture, and improving performance Research shows that “teacher collective efficacy” can increase student learning more than any other strategy. In fact, using powerhouse teams can achieve four years of student growth in a single calendar year. Horton’s practical guide offers: Short activities that require little to no preparation that you can use to deepen conversation at your very next meeting Step-by-step tools to help your team move from identifying its biggest challenges to choosing and implementing successful reforms Strategies to enhance teamwork, trust, and collaboration so your team becomes as effective as possible