How's teaching general English different from teaching business English?

There are several differences between general teaching English and teaching business English as following:

1-Differences in the role of teacher > The role of teacher is very important in developing the process of teaching English .The teacher should achieve all the different language activities and he should be able  to identify the current language level of the learner and to select materials and set tasks that are appropriate in level as well as in context. They also need to be able to set course objectives and devise course program. In order to achieve this it is essential for the teacher to have an in-depth knowledge of the language system in terms of skills functions, structures and vocabulary

Business English teacher, as a language teacher, should perform the basic functions required for a language teacher, specifically as organizer, assessor, prompter, participant, controller as well as knowledge-resource. However, to be a qualified Business English teacher more is needed.

It is preferred to select for teaching business nglish the teachers who has worked in in companies themselves and have useful knowledge of the way in which companies are organized and run. it is great importance that the trainer should be seen as an expert in presenting and explaining the language, in diagnosing the learners’ language problems, and in providing them with certain awareness of Business English. Besides the qualifications and a background in business, a right balance of personal skills carries the same weight of importance

2- Differences in Course Design

3- Differences in teaching models

4- Differences in teaching skills