Why this matters
The knife, food, board, and guiding hand work as one system. If any part slides, wobbles, or leaves fingertips exposed, the motion is no longer controlled. Even pieces also cook at a similar rate, so safe knife work improves texture as well as appearance. Work below your maximum speed; smooth repetitions build useful pace naturally.
How to do it
Put a nonslip mat beneath the board, or wring out a clean towel and lay it flat underneath. Press each corner before cutting; a board that rocks or slides is not ready.
What to look, hear, or feel for
The board should stay planted when you push it from several directions. Keep the damp towel contained under the board so it does not trail toward a burner.
When something goes wrong
If the board moves during prep, stop immediately with the knife flat on the board. Reset the towel or switch to a larger, heavier board before continuing.
Try it in a real meal
Practice with one sturdy vegetable at a time, without a hot pan waiting, and stop whenever the setup feels unstable.