The document discusses the rationale for using group work in English courses to improve student performance and engagement. It proposes dividing classes into small groups to provide more opportunities for language practice, peer support, and targeted feedback. Two types of grouping are suggested: mixed-ability groups to foster collaboration between students of different levels, and grouping by achievement to better meet student needs and reduce inhibition. The objectives of group work are outlined as developing communicative competence, language skills, learning strategies, and social skills. A variety of task types are also listed.