An instructor-use device (7) is provided with the following: a reception unit (50) that receives position data relating to the position of a motorcycle at certain times; a display control unit (55) that specifies an evaluation position, which is a position to which a motorcycle (3) has traveled during an evaluation period, on the basis of the position data and evaluation results pertaining to motorcycle operating skill during the evaluation period, and that generates results display data (A) in which the evaluation results and the evaluation position are associated; and a display (44) that displays the results display data (A).
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