Novel teaching compass

The utility model relates to a novel teaching compass which comprises a chalk clamp 1, a guide rod 2, reverse scales 3, a locking screw 4, a rotating support 5, a rubber sucker 6 and a chalk protecting device 7. The novel teaching compass is characterized in that the chalk clamp 1 is fixedly connected with one end of the guide rod 2, the chalk protecting device 7 is arranged on the lower portion of the chalk clamp 1 and made by an elastic material, the rotating support 5 sleeves the guide rod 2 which is adjusted and fixed through the locking screw 4, the reverse scales 3 are arranged on the upper surface of the guide rod 2, and the rubber sucker 6 is arranged on the lower portion of the rotating support 5. The novel teaching compass has the advantages that radius of the novel teaching compass is easy to adjust and control while circle center of the same is less prone to deviation, and chalk can be protected effectively.