Standing and walking for prolonged periods; frequent bending, kneeling, stooping, reaching, which may include sitting on the floor to effectively engage with students; The use of hands and fingers to operate computers, instructional technology, and classroom materials. The program's methodology of teaching relies heavily on the philosophy of Applied Behavior Analysis (ABA) through the utilization of various strategies including discrete trial training (DTT), errorless learning, prompting hierarchies, and incidental teaching.