The purpose of this article is to present a theory-driven blended intervention model that integrates evidence-based interventions to support language and social development of young children. We (1) provide an overview of practices that are designed to support language and social-emotional development, (2) present a theory of change model that outlines the theoretical basis for our proposed approach, and (3) provide an example of the conceptual model via the blending of Tier 1 interventions that provide class-wide language and behavioral support for young children. (author abstract)