For decades, the fields of early childhood intervention and early childhood special education (EI/ECSE) have been promoting child participation in naturally occurring family and classroom activities and routines as the context for intervention and the use of caregiver coaching as a capacity-building, family-centered interaction style. The "Child Interest Activity Plan (CIAP)" is an implementation guide to help early intervention practitioners use natural learning environment practices and a capacity-building coaching style of interaction when working with families of young children. It is not a curriculum or an intervention, but rather a guide to help practitioners operationalize the cross-disciplinary, key features of evidence-based EI/ECSE family-centered practices. The "CIAP" is a mechanism for bridging the research-to-practice gap in EI/ECSE by providing concrete supports to help operationalize the evidence-based practices following training. The "CIAP" provides the structure and support to help translate knowledge to application. The "CIAP" fills a need by providing in-the-moment support practitioners may find helpful to implement evidence-based practices with greater fidelity and more quickly following training. Developing implementation tools for evidence-based practices such as the "CIAP" is paramount given the link between use of those practices and positive child and family outcomes.