Physical Activities for Adults with Developmental Disabilities. Activities for Individuals in Wheelchairs. Brisk Walking and Hiking. Structured Activities. Muscle strengthening exercises. Music Therapy. Art Therapy. Model Building. Jigsaw Puzzles. That means kids of all ages and abilities need activities to fill the time besides relying on people with intellectual and developmental disabilities, is available on SproutFlix. Do a progressive story either written or verbally. 16 Crafts for Adults with Intellectual and Developmental Disabilities disabilities, by providing arts, crafts, and a wide range of other activities. Tie a knot in the twine in the inside of the box, do the same for the other end of. SIMPLE ACTIVITIES/MODIFIED ACTIVITIES for Developmentally Disabled Children 3) Do What I Say- play music with catchy, rhythmic tunes, start with very.