This guide represents the final experimental version of an extended pilot project which was conducted in the United States between 1973 and 1976. The manner of presentation and pedagogical ideas and tools are based on the works of George and Frederique Papy. They are recognized as having introduced colored arrow drawings ("papygrams") and models of our numeration system (the Papy "minicomputer") into the teaching of mathematics at the elementary and secondary level in Belgium. This program follows the "spiral approach." The series emphasizes that a topic may provide children with intuitive leaps which might help them acquire successive pieces of information. Suggestions are presented for obtaining and preparing materials for lessons. Some are available from CSMP. The seven books of the Teacher's Guide for this level are bound into three volumes. This volume contains the General Introduction and the six workbooks. (Author/SA)