Mathematics probability event teaching presentation device of university

The utility model discloses a teaching equipment technical field's of university a mathematics probability event teaching presentation device of university, including the inspection box, the top leftand right sides of inspection box all is provided with support, left side the right wall of support and right side frame's left wall all are provided with installation ball piece, and be two sets of install demonstration box between the installation ball piece, demonstration box's top is provided with agitator motor, the bearing frame is installed at demonstration box's inner chamber top, carry the outer wall of ball dish evenly to set up the ball groove, this kind of mathematics probability event teaching presentation device of university sets up the puddler and stirs the demonstration ball in demonstration box, guaranteed the homogeneity of demonstration ball in demonstration box to the assurance is to the accuracy of probability experiment, then through carrying the ball dish will demonstrate in the ball transp