Biologist with 10+ years of experience teaching privately all science-related topics - Math, Stats, Physics, Chemistry, and of course, Biology. I speak Spanish and French as well.

Sebastian has wonderful teaching skills. He is a passionated teacher. I have been her student twice, and I have always appreciated that his explanations are clear and he knows how to answer questions. His answers are also based on existing and reliable information. He has a lot of patience and makes students feel good and challenged with learning.

I had de oppotunity to participate in classes and talks led by Mr. Sebastian. He has gradually made a name for himself in the STEM world, and I had the opportunity to attend a talk of his that opened doors for me. He explained things clearly, passionately, and patiently and helped me understand topics I had previously struggled with. That's why, whenever I see his name in publications about talks or courses, I try to attend as many as possible.

Having been learning from Sebastian for a few years already, I can say with confidence that he is an excellent teacher, very attentive, with vast knowledge on plenty of subjects and flexible teaching methods.
He caters to your needs and does his utmost to make sure you understood the lessons and that you are ready to apply what you have learned. This, combined with his patience, his commitment to his students, and his kind demeanor, sets him apart from other teachers I have learned under.
I would recommend Sebastian in a heartbeat.