RecruitingDevice studyA Novel Program Using Ride-on Toys to Improve Upper Extremity Function in Children With HemiplegiaThe purpose of this study is to assess the feasibility and utility of 2 types of play-based training programs co-delivered by researchers and caregivers within home/community settings to promote arm function among 3-to-8-year-old children with hemiplegia. Specifically, investigators will assess the feasibility of implementation and acceptance/satisfaction associated with a researcher-caregiver co-delivered community-based training program involving either joystick-operated powered ride-on toys (SPEED training) or creative upper extremity training (CRAFT training). The investigators will also compare the effects of these 2 types of training programs on children's arm motor function and spontaneous use of their affected arm during daily activities.