In order to shape a straight posture and improve a bad posture, ballet practice pays more attention to the use of body balance and the extension of movements. If you can correctly grasp the essentials of movements, it will not only help the growth of children's bones, but also stretch the ligaments of limbs, make the muscles slender and firm, and make the children's body develop in the direction of "long hands, long legs and long neck", which is conducive to correcting children's bad postures, such as hunchback and splayed feet.