The present invention relates to a board game device, and particularly to a board game device whereby game boards may be separated or coupled. The present invention enables creating a single game board by coupling a plurality of game boards, thereby enabling the volume of the game board to be reduced when storing same. The present invention enables replacing section display boards on which sections are displayed, thereby enabling various kinds of games to be played by means of a single board game device. In addition, the present invention is provided with a transparent game board cover enabling the section display boards to be visible, and has protrusions inserted into structures formed on the upper part of the cover so as to prevent the structures from being easily separated.

A tabletop teaching device and a method of using the same may include a box having an interior housing, a top and a floor. The box may include within the interior housing, at least one printout of a scene placed on the floor of the box, at least one printout of a grid placed over the at least one printout of a scene, and at least one miniature item placed above the at least one printout of a grid, wherein each miniature item represents a potential victim, a fixed point, an object item, or a potential weapon. An instructor can then place a potential victim miniature item and a fixed point miniature item spaced apart along the at least one grid printout so as to instruct a first student to determine distances and angles between the potential victim utilizing the grid of the at least one printout of a grid.

A tabletop teaching device and a method of using the same may include a box having an interior housing, a top and a floor. The box may include within the interior housing, at least one printout of a scene placed on the floor of the box, at least one printout of a grid placed over the at least one printout of a scene, and at least one miniature item placed above the at least one printout of a grid, wherein each miniature item represents a potential victim, a fixed point, an object item, or a potential weapon. An instructor can then place a potential victim miniature item and a fixed point miniature item spaced apart along the at least one grid printout so as to instruct a first student to determine distances and angles between the potential victim utilizing the grid of the at least one printout of a grid.