A deductive approach to teaching language starts by giving learners rules, then examples, then practice. It is a teacher-centred approach to presenting new content.
In the move away from teachers following one specific methodology, the eclectic approach is the label given to a teacher's use of techniques and activities from a range of language teaching approaches and methodologies.
The lexical approach is a way of analysing and teaching language based on the idea that it is made up of lexical units rather than grammatical structures.
There are several ways to approach writing in the classroom. It should be said at the beginning that there is not necessarily any 'right' or 'best' way to teach writing skills.