Background: As more schools begin to include preschool classrooms, teachers and administrators may need physical activity (PA) curricula that are inclusive, specially designed for young children, and linked to PA curricula used with elementary students. Purpose: The purpose of this study was to pilot an elementary PA curriculum (i.e., "Children and Teachers [CATs] on the Move") with preschoolers to identify curricular adaptations to design a PA curriculum for preschoolers that is feasible for, and acceptable to, inclusive early childhood teachers. Methods: Focus groups were held with early childhood teachers and PA program leaders after the curriculum was used with preschoolers with and without disabilities across 13 weeks. Results: Teachers and program leaders identified changes to the program's structure, rules, activities, and the creation of enhancements to promote children's participation in the curriculum (e.g., visual supports). Discussion: Several fundamental changes were necessary for the CATs program to be feasible in early childhood classrooms. Teacher and program leader feedback led to a new curriculum (i.e., "Kiddie CATs on the Move"). Translation to Health Education Practice: It is crucial to choose an appropriate and inclusive PA curriculum specifically created for young children.