Abstract: A bank shot teaching or training device including a pair of arms pivotally supported on a base and positionable relative to teach other by means of indicia formed on the base and the arms such that the angle on the interior face of each arm will be equal relative to an imaginary center line normal to the base and equidistant between the pivot points. The base and arms are positionable on the playing surface of the billiard or pool table with an edge of the base being positionable along the cushion rail beneath the point of impact of a ball with the cushion.