The use of mother language in foreign language teaching and strategies of avoiding it

For many years, the principle of not using the intermediate language, either mother tongue, has prevailed in the process of teaching foreign languages to teachers, but its use is allowed only as a last resort. However, research shows that teachers make extensive use of the intermediate language. This article tries to identify the root causes of the difference between principle and fact and to address the issue. The development of guidelines for maintaining the norm between the languages being taught and the intermediate language used in the course and some strategies for teachers to make full use of the foreign language without abandoning the intermediate language are suggested.