Which technique is commonly used to achieve a layered haircut?

The technique commonly used to achieve a layered haircut is slide cutting. This method involves using the scissors to slide along the hair strands, which helps create movement and texture within the layers. Slide cutting allows for a soft transition between different lengths and helps to remove bulk without creating harsh lines, making it ideal for layering.

In contrast, point cutting is another technique that, while useful for adding texture and softening the tips of the hair, does not specifically create the layered effect. It is primarily used on the ends of the hair to create a feathered or more textured look, rather than establishing layers throughout the hairstyle.

Clippers are typically used for shorter styles or men's haircuts, and they provide a blunt edge rather than the soft, blended look that layers require. Rock cutting is less commonly referenced and may not be recognized as a standard technique in layered haircuts.

Thus, slide cutting is the technique that most effectively creates and shapes layers in a haircut.