These are some of the individual materials needed by students using the Comprehensive School Mathematics Program for the Upper Primary Grades, Part IV. The book of "Worksheets" contains materials that are labeled with the same letter and number as the lessons with which they are to be used. The four "Galaxy of Problems" booklets include exercises on addition and subtraction as well as practice with the Papy "minicomputer." The "Fishing for Numbers" and "Subtraction Problems" booklets also provide practice on whole number operations as well as work with geometric and measurement concepts. "To Picture" is a story-workbook which allows students to take a fanciful excursion in the world of numbers that actively involves the student in the acquisition of new mathematical insights. (Author/MK)