Constructional engineering cost teaching demonstration device

The utility model discloses a constructional engineering cost teaching demonstration device, and particularly relates to the field of building teaching aids, which comprises universal wheels, a base,a support column, a fixing frame, a calculator and writing cloth, a fixing bottom box is fixedly mounted in the middle of the base, and a switch button is fixedly mounted on one side of the top of thefixing bottom box. A control line is fixedly connected to the side face of the switch button, a rotating plate is fixedly installed on one side of the fixing frame, and a rotating button is movably installed at the bottom of the rotating plate. According to the utility model, the multilayer plate device is arranged, so that in the teaching process, if a student does not understand the demonstration, but the plate is updated too fast, the teaching quality is reduced, at the moment, the multilayer plate device can completely retain the teaching content in the demonstration process, and the teaching content is convenient