The hairdresser's profession tends to be a sensory education when teaching, and it is natural that what you are saying differs depending on the teacher.However, when learning the basics, I believe that the less hesitation you have, the faster you will grow.
I think that Polycarbonate fits the times of the beauty industry, which is said to be the current education industry. It is not just a cutting tool or teaching material, but a manual that applies brain science to match the most important "posture" and "standing position" for hairdressers. I think it's a "quite a must-have curriculum in this era" that can be taught correctly. If you learn it, it should make a big contribution to your company's technical curriculum.
In addition, you can use an item called Silhouette Sponge to create a development plan. A "development drawing" is like a blueprint for a cut, and if you don't understand it, you can't do an accurate cut. Cuts are considered in 3D (three-dimensional), so this will deepen your understanding.