This is the first and basic dance position. Ballet dancers turn the feet out so that the toes face away from each other. The heels should be together, but not necessarily touching. The sole and toes should completely touch the floor. They do not have to form a straight line.
This is the position that dancers move to next in a warm-up, moving their feet from first position to second position. The feet turn out as in first position, but one foot is away from the other foot so that the dancer stands with feet spread apart. The distance between the feet should be comfortable, about one and a half the length of the dancer's foot apart.
Dancers typically move straight from second position into third by sliding one foot from second position. This foot's heel touches the inside arch of the other foot. The dancer turns out the feet as in the first two positions. The feet are in a position similar to first, but with one foot more in front of the other foot.
Dancers move from third position to fourth by sliding the front foot forward. This foot is the one that in third position touches the other foot's arch. The dancer should turn out the feet comfortably and the front foot should be about as far away from the other foot as the length of the dancer's foot.
This is the final position. Dancers move from fourth to fifth position by sliding the front foot back so that the heel is in front of the toe of the other foot. This is similar to third and first position, but the feet overlap each other more. The ideal of this position is for the feet to turn out enough so that the front foot completely hides the other foot, and they line up toe-to-heel. However, the dancer should turn out the feet only as far as is comfortable for the dancer's level of training.