Hendrick is now happily in his sixth month of life and is rolling, squirming, and practicing sitting. At this point in his development it is suggested that you introduce a ball if you have not already. The ball's motion encourages a desire to crawl. (The ball moves, the baby wants to get the ball.) Ideally the ball would be made of cloth so that it could not roll away too fast or far, just enough to keep H. interested. But on grandma's recent visit she gave H. a non-cloth ball and he seems to be enjoying it quite a bit. Sure enough when he first saw the ball rolling toward him and reached out to touch it it rolled away and he started working on getting his butt in the air and limbs moving. He has yet to figure out what to do with all of his limbs in order to crawl, but I am confident that he will figure it out eventually.