To concretely and correctly explain tactics to each player by providing an animation reproducing function for smoothly and simultaneously progressing the movement of each player or a ball or the like when the tactics are explained.

The designated tactics are reproduced by animation based on previously inputted data. The reproduction speed of the animation is changed by the operation of an upper part scroll and also stopped. Besides, the player to be concerned is marked, the direction of the player is moved after obtaining a still picture or an arrow or a space is indicated by a writing function. Moreover, a basic item such as the change of a team color, the erasion of the player who is not required in tactics explanation or the change of a uniform number is inputted by a cursor concerning an input work by an input parameter. Besides, the movement of each player is inputted by the drag operation of the cursor and designation in the movement of a curved line in accordance with a movement position such as a large or small detour is freely executed by adjusting the curved line by the cursor.