Social-emotional learning (SEL) involves the acquisition of skills necessary to identify and manage one's emotions, relate to and establish relationships with others, and make positive and health decisions. With only 40% of kindergarten students demonstrating the social-emotional skills needed to be both academically and socially successful upon school entrance, explicit instruction targeting SEL is needed. NYS elementary school principals have little familiarity, past use, or current use with CASEL-approved programs, suggesting a need for increased dissemination and professional development regarding these programs and resources.--from Abstract (page viii).