Rotary Table Pointer Type Probability Demonstration

Rotary Table Pointer Type Probability Demonstration

Gelsonlab HSMM-025 Primary school mathematics Turntable rotary table pointer type probability demonstration infant experiment

Specifications:

Its made of plastic , Dia 14cm, height , An instrument for mathematics educational, very good quality

The instrument is a rotating disk, which may stop at any position after rotating, and the color or number pointed by the position where the pointer stays will lay a foundation for learning probability theory and statistics.