The D (Developmental) part of the Model describes the building blocks of this foundation. Understanding where the child is developmentally is critical to planning a treatment program.
The I (Individual differences) part of the Model describes the unique biologically-based ways each child takes in, regulates, responds to, and comprehends sensations such as sound, touch, and the planning and sequencing of actions and ideas
The R (Relationship-based) part of the Model describes the learning relationships with caregivers, educators, therapists, peers, and others who tailor their affect based interactions to the child’s individual differences and developmental capacities to enable progress in mastering the essential foundations.