This Teacher's Guide for first-grade mathematics is an outgrowth of an extended pilot project conducted nationwide 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 guide emphasizes that a topic may provide children with intuitive leaps which might help them acquire successive pieces of information. The Teacher's Guides for first grade are bound in two volumes. This part is the second volume and includes eighty lessons for the second semester. Each lesson is summarized, described, and illustrated. Materials for the student and the teacher are given. Suggestions for organizing the lessons on a month-to-month basis reflect the experiences of the CSMP staff in developing the curriculum. In the appendix, the teacher is provided with information to enable him/her to teach the String Game, a game which is developed and reinforced throughout the CSMP curriculum. Worksheets for the students accompany the guide. (Author/SA)