| 摘要 |
The present invention relates to a studying material using a magnet. In a studying material provided with a textbook board which indicates numbers or letters, a plurality of holes (11) are formed at each of the numbers or letters and a ball (20) is installed at the lower side of each of the plurality of holes (11), wherein the ball is made from metal and capable of being attached to a magnet. Each of the plurality of holes (11) consists of an upper hole and a lower hole and has a funnel shape narrow at the top and wide at the bottom, wherein the upper hole has a smaller size than the lower hole. The diameter of the ball (20) corresponding to each of the plurality of holes (11) is formed to be larger than the upper hole and smaller than the lower hole, so that the ball (20) is induced to partially protrude upward from the upper hole (11) by allowing a magnetic pen (20) to approach each of the plurality of holes (11). Therefore, students are interested in the ball (20) protruding partially through each of the plurality of holes (11) and the learning process progresses in three dimensions, thereby increasing learning concentration and thus learning efficiency. |
