Abstract: A golfer's stance for correctly addressing a golf ball using different clubs is taught by using a mat having a ball line on it with markings showing the different locations at which the ball should be put. The mat has on it either a single detachable strip or different sets of detachable or permanent strips. The or each strip indicates optimum stance lines with which the golfer's feet should be aligned when using a club of weight or number associated with the strip being used at any one time.