Gross Motor, Fine Motor, and Sensory-Motor Skills Watching your child master new skills is exciting and fun. Many questions arise throughout development, however, that can be difficult to find at times. “When should my child be able to do______” is a common question I get in my pediatric occupational therapy practice. Below is a checklist to serve as a resource for your child’s development of fine motor, gross motor, and sensory-motor skills. Age 13-18 months Scribbles on p