This exercise focuses on engaging and strengthening the deep core muscles, crucial in ballet and athletics. It's designed to boost balance, improve body control, and solidify dancers' core strength – essential for the execution of complex movements.

Preparation:

• Ensure students understand the importance of core stability.

• Check the fusion ball is correctly positioned above the ankles.

• Emphasise the need for a solid plank position with parallel legs.

Steps:

1. Have students begin with the fusion ball placed between the calf of their left leg (in a plank position) and their right leg (on top of the ball in arabesque), ensuring even toe distribution on the supporting foot. Commence on the side of the mat.

2. Maintain hip squareness to the floor and an elongated spine.

3. Hold this position for six counts in sync with the music, breathing slowly and deeply.

4. Cue a roll to the right side, lifting into a rotated devant, with the right leg now under the fusion ball. Repeat 1 - 4.

5. Arms should be forward, palms up. Instruct students to modify by placing their hands behind their heads if they're experiencing neck strain.

6. Perform a scissor movement at the end of the phrase to finish with the right leg on top.

7. Repeat this sequence on the opposite side, starting with the left leg in arabesque. 

Focus:

Keep an eye on the students' hip alignment and spinal elongation. Ensure that the arabesque leg maintains a parallel position.