Abstract: A pocket-sized golf backswing training device is provided having an elongated hinged tee which has a rod-like lower portion insertable into the ground. A ball is secured to a top of the hinged tee. The tee is movably retained in a predetermined upright position by a positioning means such as a cooperative engagement between upper and lower tee portions. In an embodiment, the upper and lower tee portions are pivotally hinged together by a pin extending through overlapping narrowed segments of the respective tee portions. The device is planted in the ground, positioning the ball in a desired backswing path of a golf club. A practicing golfer then swings the club rearwardly. When a proper backswing is executed, the ball is struck by the club head, tipping the device to a pivoted position. The pivoting of the tee indicates to the golfer that a proper backswing has been executed.