The grand plié is a fundamental ballet movement that involves bending the knees while keeping the heels on the ground. It is performed in all five positions of the feet and is essential for developing strength and flexibility in the legs. Dancers lower their bodies into a deep squat, ensuring proper alignment and control throughout the movement. In a grand plié, the dancer typically begins in a standing position, then bends the knees while maintaining a straight back and engaged core. This movement is often used as a warm-up exercise and is crucial for executing more complex ballet techniques. Proper execution helps improve balance and coordination.