Preventing Injury: A Safety Curriculum. Grades 3 and 4.The focus of this curriculum is on prevention of spinal cord injury (SCI) and traumatic brain injury (TBI). The program is aimed at young children because it is during the early years that behavioral patterns are formed which become increasingly more difficult to modify as the child enters adolescence. The curriculum includes behavioral rehearsal, practice, and interactive elements with reinforcement to enhance learning. This guide for Grades 3 and 4 is organized into 8 units: Spinal Cord and Brain Injury Awareness, Motor Vehicle Safety, Pedestrian Safety, Bike Safety, Playground and Recreational Sports Safety, Preventing Falls, Weapons Safety, and Water Safety.