As the single most powerful lever in improving student achievement (1.57 Effect Size), collective efficacy holds a critical role in closing the achievement gap. In Part 2 of this series, three educators dig more deeply into the "mechanics" of building collective efficacy. Listen in on Jennifer Crockett, Kim Duenas, and Amy Pendray of LBUSD as they discuss the enabling conditions, intentional actions, and developed beliefs that nurture powerful instructional teams that engage in rich cycles of team learning.