Photo 1 of Dalton Board/Galton Board, Effective Statistical Law Demonstration,Experiment Model for PhysicalSchool Laboratory Teaching Demonstration Teaching (Red)

Double tap image to zoom

Photo 1 of Dalton Board/Galton Board, Effective Statistical Law Demonstration,Experiment Model for PhysicalSchool Laboratory Teaching Demonstration Teaching (Red)Photo 2 of Dalton Board/Galton Board, Effective Statistical Law Demonstration,Experiment Model for PhysicalSchool Laboratory Teaching Demonstration Teaching (Red)