I am a doctor in Biochemistry and I have extensive teaching experience. I have taught high school and high school reinforcement classes for over 10 years. I have also helped as a test preparer with very good results. In addition, I have held university seminars and directed final degree and master work. I seek to help you in those subjects that resist you the most in the area of science, in Spanish or English. I have great experience as a scientist and I know the subjects in depth