00500    a2200169   4500082001500000100002100015100002000036245007700056260003300133300002200166504002800188650002300216650003400239650002500273651000700298653002500305  a372bJ881m  aJudd, Dorothy H.  aJudd, Robert C.  aMastering the MICRO:busing the microcomputer in the elementry classroom  aDallasbScott Foresmanc1984  aviii,152p. illus.  aIncludes bibliographies  aComputer programms  aComputer assisted instruction  aComputer application  aUS  aElementary education