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 the pedagogical ideas and tools are based on the works of Georges 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. The CSMP curriculum 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. An introduction is given to the Language of Strings and Arrows. In the String Game, students are to deal with divisors of numbers. A chapter on logical thinking deals with precise terms in English used to discuss statements concerning various sets. Composition Games reiterates what the students experienced earlier in CSMP. Geometry and Measurement and Probability and Statistics are other topics within the guide. (Author/SA)