Play #1 is not covered in the rule book or case book. Perhaps that's why Dan wouldn't touch it!
The only thing in the rule book about rolling the ball is in 4-31 which says that it's a pass to roll the ball to another player. Obviously, in your play, another player is not involved. I would consider the ball to be loose, with no player control. Although it's obvious that the player is controlling the ball, rolling the ball on the floor does not meet the definition of player control.
BTW, I've never seen it happen. I would try to focus the kids on plays they're more likely to see.
