All subject in one is the definition of a form of learning in which a set of subjects can be taught, with great quality and dedication to the student. You cannot charge without doing what the client is looking for. I have worked at all levels as a private teacher, so I know each of the concerns that appear in each academic stage. You only have to ask and you will be answered in a way that the student understands, we do not follow fixed guidelines, but we adapt to each one.