Toyota Kata, described by Mike Rother, is a pair of practice routines: the Improvement Kata — a four-step pattern of understanding direction, grasping the current condition, setting a target condition, and iterating experiments toward it — and the Coaching Kata by which leaders develop that habit in others.
The point is to build a scientific-thinking mindset through repetition, making continuous improvement a daily skill rather than an occasional event. It operationalizes PDCA at the individual level.