I have been living and teaching English for the British Council for more than 20 years in Madrid and I am qualified with the CELTA and DELTA certificates. I have experience of teaching all age groups and most public exams like PET, First, Advanced, Proficiency, Aptis, IELTS and the Trinity ISE. Each student has different needs but in general I think it is important that you speak as much as possible during the class in order to improve your fluency and pronunciation above all. Of course, it is usually also necessary to expand your vocabulary and tidy up whatever grammar errors come up too.