All lessons are online. I produce all the material for my presentations including graphics, animations, reading material etc. and I can always recommend textbooks, if necessary, to supplement the reading list provided by your high school or university. I encourage feedback from my students to make sure the teaching experience is always on target. I have used math all my life both as a student and as a professional and I enjoy covering a wide range of topics. I like to cover both pure and applied mathematics, anything from algebra to quantum mechanics! I can also help outside lessons subject to two constraints: my availability and the restriction that communication is limited to emails. I strongly believe that a teacher should be there to help students think and provide knowledge so except for the customary, polite exchanges at the beginning (and end) of a lesson I am not willing to discuss anything other than math. I expect my students to be totally focused on their subject during a lesson. Math is a subject that can only be learned by doing; so, after the lesson ends, I always make sure that I give my students plenty of work and then make sure that they get plenty of feedback regarding what they have done right and, much more important, what they have done wrong. Someone wise once said "experience is simply the name we give our mistakes" and my life has shown that this is true.