A golf teaching tool to provide instant user feedback, while explaining and encouraging proper ball impact. The golf teaching tool includes a rectangular plate with a cutout section. The golf teaching tool is placed on a playing surface with the cutout section pointed towards an intended target. A golf ball is placed on the playing surface within the cutout section and subsequently hit. Sound, impact, ball flight and movement of the golf teaching tool due to the golf club hitting the golf teaching tool, or no movement of the golf teaching tool provide the user immediate feedback regarding the correctness of the swing.

A golf swing alignment and swing-aiming device is disclosed. An embodiment of the device includes a main elongated member, an aim arm that is pivotally connected to the main elongated member, an aiming strip that is pivotally connected to the aim arm, and a ball positioning arm that is pivotally connected to the main member at a location near the second end of the main member. The device collapses so that it can fit inside a club sheath in a golf bag, and can be unfolded to allow the user to position the aiming strip in a parallel arrangement with the main member, so that the aiming strip can be used to guide the swing of a golf club while positioning one's feet along the main member.

A housing type golf simulation apparatus and features the housing that the internal space is available having front, rear, upper and left/right side; monitor installation section which is provided backward in the rear side direction from the said front housing so that the monitor can be seated in the said front housing; golf simulation computer which is provided in the said internal space; and the monitor to be seated in the said monitor installation section. Thus, it is advantageous to implement various additional functions in the housing while installing, managing and moving the entire golf simulation apparatus in an integrated module.

A golf teaching tool to provide instant user feedback, while explaining and encouraging proper ball impact. The golf teaching tool includes a rectangular plate with a cutout section. The golf teaching tool is placed on a playing surface with the cutout section pointed towards an intended target. A golf ball is placed on the playing surface within the cutout section and subsequently hit. Sound, impact, ball flight and movement of the golf teaching tool due to the golf club hitting the golf teaching tool, or no movement of the golf teaching tool provide the user immediate feedback regarding the correctness of the swing.

Device for indicating marking positions on a ground surface of a golf course, which device is arranged facing the ground surface, wherein a plurality of beams of light rays are output by at least one light source, which beams of light rays are directed onto the ground surface from a high point spaced apart from the ground surface, wherein a plurality of patterns are projected on the ground surface by individual beams of light rays, wherein an individual beam of light rays characterizes an individual marking position by an individual pattern of the plurality of patterns, wherein each beam of light rays comprises a main axis, which main axis is oriented at an acute angle alpha, beta with respect to the ground surface and/or to a horizontal axis.