LEARNING OR AMUSEMENT DEVICE

摘要

PURPOSE: To provide a learning or amusement device which can intuitively understand the judgment of a right answer or a wrong answer. CONSTITUTION: A printed matter where a right area is printed in the state of a small infrared reflection rate and areas except for the right area are printed in the state of larger infrared reflection rate compared to the right area, and an infrared detector 5 are provided. A signal informing the right answer is displayed when the infrared detector 5 is applied to the right area and a signal informing the wrong answer is displayed when the infrared detector 5 is applied to the area except for the right area.