The first online lesson would entail a series of questions to evaluate your individual goals and what curriculum you are following. From there I will create personal lesson plans to help you achieve your goal. I would hope to meet with the tutee once a week for 6-10 weeks to really allow for progression to occur. If more or less lessons would be preferable I am also able to do that.
Moreover, as I took four A-levels and am currently doing a maths degree, I have plenty of recent experience with revision. If the tutee is preparing for an exam date, I will support their revision in the following ways: I will identify their learning style whether that be kinaesthetic, auditory, visual ect.; work with them to create suitable revision materials and a revision timetable and walk through past exam papers with them.