Isaac first rolled over from his belly to his back when he was five and a half weeks old, and he has been rolling non-stop ever since then when he's placed on his belly. But, he is still working on rolling over from his back to his belly. He can twist himself into a backwards "C" and he twists his hips over, but he hasn't quite completed the movement to get himself all the way over on his belly. It's very entertaining to try to get him to roll over. Noah and I put all his toys on one side and try to tempt him to go over onto his belly. Isaac likes the game and twists himself up to see all the toys. He gets so close to fully rolling over that I think he considers the job done! Here's some more pictures.