Cooperation between the Appalachia Educational Laboratory, International Business Machines, and the Computer Assisted Instruction Laboratory of the Pennsylvania State University led to an attempt to provide inservice education in modern mathematics for elementary school teachers throughout Appalachia and other areas which are geographically difficult to reach. Mobile vans were used, with computer assisted instruction mounted in them. The first eight weeks of implementation of this project are reported here, including a description of the program, evaluations of achievement and attitudes towards mathematics and computer-assisted instruction, curriculum revisions, and computer system operation and utilization. (EM 011 037 through EM 011 043, EM 011 046, EM 011 047, EM 011 049 through EM 011 058 are related documents.) (RH)