This study evaluates a consultation coaching model aimed to improve positive-learning environment practices and teachers' instructional style and affect in early childhood (EC) classrooms. Teachers in 15 EC classrooms participated as consultees. The consultative coaches received training that included learning (a) specific content based on evidence-based practices in positive and preventative classroom strategies, (b) coaching practices, and (c) implementation processes. Consultative coaching targeting research-based Tier I positive support environments and instructional social-emotional learning strategies occurred over an 8-week period, and included baseline and ongoing observations, feedback, and joint planning with the EC teachers. Observations using multiple measures examined the influence of coaching. Pre- to post-consultation data suggest this model holds potential for (a) increasing positive, preventative classroom qualities and (b) fostering positive change in teachers' instruction. Implications and future directions for an efficacy trial to confirm causal hypotheses regarding the role of consultative coaching practices in EC classrooms are addressed.