ACT, GRE, IGCSE, IB, SAT Exam Preparation Help

I am a native English speaker with ten years of experience teaching Mathematics, Science, English and Philosophy to students from 11-20 years old in the United States, Germany and Spain.
     I have extensive training and experience plus a CELTA qualification for teaching English language. I am familiar with IGCSE and IB curricula in Mathematics and Science as well as ACT, GRE and SAT exam preparation.
     Please contact me to determine the extent to which I may be of help. I offer classes in-person and via Skype. I speak Spanish reasonably well but I only teach in English. Thank you.