The content is biological science altered according to the exam board I am teaching for. The teaching will be interactive using presentation, videos, question and answers with the student. Past papers will be used prior to an exam that you the student are facing, with questions chosen based on what you are weakest on regarding topics.
I have taught in China, Libya & London. I am knowledgeable concerning biology with 3 degrees in the subject (1 honours degree & 2 Masters). The exams I have taught & tutored in are Cambridge International Exams IGCSE, AS-Level & A-Level biology, AQA A-level, Oxford AQA IGCSE to date.
The important thing is to assess where you are weakest in the biological topics, then focus on developing your understanding.