Inquiry (采购产品): New math manipulative idea I seek a manufacturer for a math manipulative product. It would require the fabrication of containers (cubes in the prototype version) each of which have a number afixed to the surface (2, 16, etc.) approximately 2 inches in diameter. These containers would be hollow, with the capacity to hold small weights, after which they would be permanently sealed. Thus each container would have number and a corresponding precisely determined weight. In all, each kit contains approximately twenty containers. Plastic seems like the most obvious material to use. **** Hidden Message ***** Bruce Ratcliffe 93728 Company: MathMagic Blocks E-mail: ehsratcliffe@sbcglobal.net **** Hidden Message ***** ehsratcliffe@sbcglobal.net