The course in Applied Number is designed to be covered with the course in Pure Number (see SE 012 723 to 725). The aims of this course are stated to be: "the development of (1) comparison: as exemplified by measurement; (2) exploration of the environment; (3) skills: among these, estimation and computation; and (4) language: as a medium for accurate description." This development takes place through continuous experiences with concrete materials, participation in planned activities, and opportunities for individual discovery. Each section of the guide contains notes on content and method, and suggested materials, equipment and activities relevant to six concept areas: length, volume and capacity, weight, time, money, and spatial relations. Under the first three headings, Section A develops the idea of comparison; Section B discusses the idea of a unit, using informal units; and Section C introduces the standard units foot, pint and pound. Concepts of time are developed more slowly, and money activities relate mainly to an appreciation of buying and selling. The sections concerned with spatial relations develop awareness of space through recognition and naming of common shapes, classification, and creative construction. The growth of vocabulary is stressed throughout the guide. (MM)