Dukhunt, try telling her that when she pushes off she should lift her heel up over her toes so that the foot ends up pointing straight down. That should help stop all or most of it. Right now when she drives out she leaves her toes behind and brings her heel forward instead.
(A tip of the Hatlo hat to Javasource for that cue, by the way. I've used it with a couple of girls who had the same issue and it cleaned them up pretty quickly.)
(A tip of the Hatlo hat to Javasource for that cue, by the way. I've used it with a couple of girls who had the same issue and it cleaned them up pretty quickly.)