This publication supplements an earlier publication, "What Do You Like about Yourself? Developing a Positive Self-Concept" that presented an introduction to self-concept and included activities that could be used with students of all ages. This particular document, divided into two parts, includes additional ideas and activities that relate to self-concept development, with special emphasis on the importance of self-concept in relation to decision making and problem solving. Part I lists topics in which the relationship of self-concept and decision making can be integrated, lists teacher and student objectives, reviews definitions, and discusses the thinking process. Part II contains 43 activities, most of which are designed to be duplicated and handed out to students. The directions or notes to the teacher can be removed or covered when making student copies. The activities should be adapted to meet the needs and interests of students. Activities cover these representative topics: criticism within a context of positive reinforcements, brainstorming, triad thinking, alternatives, thinking skills, technology today, ethical dilemmas, assertiveness, community service, aging, differences, moods, your place and space, images, inner and outer self, self-image, and rewards. The appendix includes a 47-item bibliography, a matrix of all activities coded to the teacher and student objectives, a list of Future Homemakers of America/Home Economics Related Occupations activities, a page of suggestions for using teams in the classroom, a "lesson on leisure" module, and bulletin board ideas. (YLB)