This study report begins with a profile of marginal learners based on current research. It continues with a question-by-question analysis of a survey which was completed by 22 teachers identified as effective in working with marginal learners. The survey gathered information concerning: (1) teacher descriptions of marginal learners, including student classroom behavior, attitudes, and learning and environmental deficits; (2) qualities of effective teachers of marginal learners, addressing personal qualities and philosophy and instructional strategies; (3) classroom organization, such as seat assignments, instructional groupings, teacher proximity, and classroom procedures; (4) organization of instructional time; (5) learning activities which provide structure and enhance affective development; and (6) specific strategies for concept review, questioning, reinforcement, motivation, self-esteem enhancement, discipline, evaluation, homework, outside class assistance, and parental contact. The report includes a copy of the survey instrument, a bibliography of 83 items, and descriptions of 15 specific instructional activities especially effective with marginal learners. (JDD)