Presented is the task analysis for "Developing Mathematical Processes, Arithmetic, Book 1: Comparing and Equalizing Objects and Sets." This task analysis consists of identifying the behavioral objectives necessary for comparing and equalizing objects and sets and arranging them in a logical sequence for instruction. The 52 items in this task analysis may be grouped into five major topic areas. The two initial areas are "Counting and Writing Numerals" and "Description and Classification of Sets and Objects." These two areas are prerequisite of the next two areas, "Comparison of Discrete Sets on the Property of Numerousness" and "Comparison of Objects on Continuous Properties." These two areas are prerequisites for the final area "Ordering and Equalizing Sets and Objects." The booklet contains specific descriptions of each of the 52 items comprising the task analysis. [Not available in hardcopy due to marginal legibility of original document.] (Author/CT)