The document discusses feedback in language teaching. It provides definitions of feedback and describes its two main components: corrections and assessment. Corrections provide explanations or alternatives to improve performance, while assessment simply informs learners of their performance level. The document also examines different approaches to the nature and function of feedback, including how to provide oral and written feedback and correct mistakes. It offers practical hints for teachers to maintain discipline in the classroom, such as being well prepared, moving around, and treating students with respect.