The present disclosure relates to a teaching system and a corresponding method. The teaching system includes a robot having a robot flange coupled to a first workpiece; and a teaching device having a teaching flange coupled to a second workpiece, the teaching device is configured to move in a route with a set of parameters. The second workpiece is the same with the first workpiece and the teaching flange is the same with the robot flange such that the robot can move by following the same route of the teaching device with the same set of parameters.