This learning module is designed to provide the prospective second-language teacher with an overview of the social and psychological factors affecting second-language learning and practical classroom application of this knowledge. The specific objectives of the module are to: (a) enable the student to explain the roles of attitude, age, aptitude, and teaching method, in the success of second-language acquisition; (b) define bilingual balance, linguistic dominance, and compound bilingualism; (c) explain second-language learning motivation of the Puerto Rican on the mainland in terms of cultural pluralism, integrative orientation, and instrumental orientation; and (d) design a teaching activity based on the major points considered in the module. Optional and required enabling activities are listed and pre- and post-assessment instruments are included. (HMD)