Mathematics is with safe device of imparting knowledge to students

The utility model provides a mathematics is with safe device of imparting knowledge to students, including demonstration platform, last stand I and the stand II of being equipped with of demonstrationplatform, stand I and stand are equipped with the ejector pin between II, be equipped with the spring on the ejector pin, and the spring lower extreme is connected with the stopper, is equipped withdisplacement sensor below the stopper, displacement sensor includes transmitter and receiver, the lower extreme at the stopper is connected to the transmitter, the receiver is arranged demonstration platform in and is gone up, is corresponded the setting from top to bottom with the transmitter, displacement sensor links to each other with the controller. The utility model discloses combine physicsand mathematical education, utilize the spring oscillator experiment that physics is traditional, explain mathematical education sinusoidal function's notion, the utility model discloses can guarantee about the spring skewly a