Combined teaching aid for economic management teaching

The invention discloses a combined teaching aid for economic management teaching, which comprises a blackboard and a control terminal. The control terminal comprises a machine body, the surface of the machine body is provided with an infrared emitter and a voice receiver, and the infrared emitter is used for emitting infrared signals; the blackboard comprises a board body; and the number of pixel boards is multiple, the multiple pixel boards are evenly and densely distributed on the board body in a matrix mode, each pixel board is provided with an infrared receiver and an indicator lamp, and the infrared receivers are used for receiving infrared signals sent by the infrared emitter. A teacher selects an area for displaying the blackboard writing on the blackboard, displays the blackboard writing to be displayed on the selected area of the blackboard in a voice input mode, and adjusts the font size according to the size of the selected area, so that the teacher can write the blackboard writing on the blackboar