Teaching display board

The utility model discloses a teaching display board, relates to the technical field of teaching aids, and solves the problem that a teacher needs to manually draw function images on a blackboard. According to the technical scheme, the blackboard is characterized by comprising a blackboard body which is fixed to a wall; the bracket is positioned on the right side of the blackboard; the drawing device is arranged on the support and comprises a first sliding rail, a first sliding block, a first electric telescopic rod and a chalk clamp, the first sliding rail is arranged on the left end face of the support, the first sliding block is slidably connected with the first sliding rail, one end of the first electric telescopic rod is connected with the first sliding block, and the other end of the first electric telescopic rod is connected with the chalk clamp; the cleaning device is arranged on the bracket; and the LED lamp is positioned above the blackboard. The function image drawing device is mainly used for auto