Rather than talk 'at' students, I prefer to work with them, finding particular areas that they struggle with and working through them, showing the tips and tricks to answering the questions and finding solutions.
If the student could drop an email before a session with the topic they wish to work through, I can also access a huge range of questions and resources to use during our session.
I have worked in education for over a decade and feel that I have alot to give. I am also able to show how the principles you learn in one subject are fully transferable to others, meaning you get the benefit in your other subjects too.
My rate is £15 p/h however I do also run an email only service which is £10 p/term for unlimited email correspondence on physics.