Economist trains special electronic stylus of explanation

The utility model discloses an economist trains special electronic stylus of explanation, including handwriting and rolling disc, the front end of handwriting is provided with the cap, be provided with the transmitting circuit board in the cap, be provided with the power in the handwriting, the power with characterized by is connected to transmitting circuit board electricity: the activity of the front end of handwriting cap be provided with the rolling disc, the edge of rolling disc corresponds the setting with the cap, is provided with central pivot on the rolling disc, central pivot is passed through the connecting rod and is fixed on the lateral wall of handwriting. Be provided with the projection figure of a plurality of different shapes on rolling disc and the marginal circumference that the cap corresponds, the adjustment rolling disc can change and projects the supratentorial figure of screen, the outstanding regional content of marking of being convenient for, and easily the student grasps the focus,