The AIM Observational Assessment has defined and operationalized 60 signifiers of knowledge and skills essential for kindergarten within the domains of social-emotional, language, cognitive, and physical development. These signifiers, or “learning progressions,” emerge at infancy or toddlerhood and continue to develop in complexity and scope into the kindergarten year.

Over 200 strategies and activities for differentiating instruction provide developmentally-appropriate adaptations and suggestions to help teachers guide children’s learning.