As a pediatric occupational therapist, Iâm always looking for movement-based strategies to support my studentsâ motor skills, focus, and overall learning. One activity that often comes up in conversations about movement and brain development is Brain Gymâs Cross Crawls. While Brain Gym as a whole is not evidence-based, cross crawls themselves are well-supported by research and can be a fantastic tool for improving coordination, attention, executive functioning, and motor skills.