Portable teaching aid for teaching

The utility model discloses a portable teaching aid for teaching, which comprises an upper box body and a lower box body, the rear ends of the upper box body and the lower box body are rotatably connected through a hinge, the surface of the outer wall of the lower box body is provided with a sliding chute, the rear end of the sliding chute is provided with a clamping groove, the clamping groove is positioned below the rear end of the sliding chute, a shaft is arranged in the sliding chute, the shaft is connected in a through groove in a sliding manner, and the through groove is provided with a through hole. The shaft is rotationally connected with one end of the third supporting rod, the other end of the third supporting rod is rotationally connected to the shaft in the hole formed in the upper box body, when the box is opened, the shaft can slide into the clamping groove to be fixed, a tool storage layer is formed in the inner space of the lower box body, and the sealing bag is arranged on the lower surface