The third of a three-volume set, this career education instructional manual for grades 7-12 was developed primarily by teachers. The broad goals of the twenty-five teaching units presented are to provide each student with an awareness of the various career fields in the world of work and to instill in each individual the worthiness of work. Based on fifteen occupational clusters, these units are intended as guides or references and not as restricted entities. To aid the teacher in the manual's use, the following topics are discussed before the teaching units are presented: the teacher's function, the objectives, the unit method in presenting occupational information, suggested steps in developing a unit plan, evaluation, and correlation of subject areas. Each teaching unit first presents the instructional objectives and then the motivational and correlational techniques, descriptions of the activities, predicted outcomes and evaluation strategies, and resources for each unit activity. A compiled list of resources is found at the end of each unit. Other additional information, such as sample field trip permission forms and instructions for specific activities, are included in the last segment of the document. (BM)