Fixed feedback has been the focus of SLA research over the past few years and is an important part of learner's language acquisition. Ellis (1994) states that feedback "provides information to learners who can use it to change between their languages." He also distinguishes between two different types of feedback, positive feedback; positive feedback is related to information indicating false assumptions. Ellis is also responsible for other forms, such as direct or corrective, indirect or structural requirements, records providing "direct negative evidence", and unrecorded provision of "indirect negative feedback" I also mentioned feedback.
Correction feedback, negative evidence and negative feedback are the terms used in the field of language education, language acquisition and cognitive psychology, respectively, as explained by Schachter (1991) cited by Dabaghi (2006) . Most researchers can use these terms interchangeably. In current research, error correction and correction feedback can be used interchangeably as long as the general meaning of the feedback clause is included. Clues as clues: Provide comments and information on the formation of students' discourse without presenting the question or teacher's suggested by the teacher, such as "Do we say this?" Meta-linguistic clues include comments, information, or questions about the proper structure of the student's speech without explicitly providing the correct form. A meta-language review usually indicates that there is an error somewhere
There are different terms when providing feedback in response to learner errors in second language acquisition. These are repair, treatment, feedback, negative evidence and correction. Brown (2007, p. 388) defines repair as a discourse where learners correct errors through spontaneous repair or response feedback. Chadron (1988) quoted in Dabaghi (2006) defines handling as a teacher's behavior that tracks errors and shows errors to learners. Ellis (1994a), cited by Dabaghi (2006), also identifies feedback as a generic press coverage in which the listener provides information about the reception and understanding of the message.