I have conducted English language training for Elementary, pre-intermediate and intermediate levels for the company’s professionals (managers, engineers) based on the Headway curriculum. Indeed I have taught English to 6-7 year old kids.

I would either conduct tailored English courses or based on books curriculum. I am used to Headway and Cambridge books. So I would meet your target level to improve your Engish. Individual English training means main focus on one student/trainee which means time and study management are effectively and timely accomplished.