Abstract: A system for aiding basketball players to improve their skill at successfully shooting the basketball from any place on the basketball court, by application of the principle of successive approximation. The system incorporates a three piece floor mat that covers one half of a basketball court, and a height adjustable basketball goal mounted upon a wheeled frame. The mat maps the floor of the half court with equidistantly spaced semicircles so that the distance to the basket can be readily determined. The semicircles radiate from the center of an imaginary point falling directly under the hoop and extending to both the endline and the side lines of the court. The basketball goal may be raised or lowered to allow application of the successive approximation principle. The wheeled frame also serves to store and move the mat.