Online English tutor, TEFL certified

I am a research scientist in biology, working now as a freelancer scientist.
I am resident in France, however, lately, being more time in Romania.
English is one of the most easy to learn languages, being some 66% of Latin origin, therefore easier for native Latin origin language and those using Latin alphabet. However, In my long experience with people from Asia, it is still easy due to a relatively easy grammar and writing.
My teaching online experience in English is of more than 5 years, having thought more than 13,000 classes, with both children and adults of many nationalities and cultures. I have TEFL 120 hour certification since 4 years.
I speak at native level (C2) English, French and Romanian and currently (C1 level) Spanish and Italian.
I also used to teach biology and sciences in Universities, as well as in high schools, using different languages when teaching, according to the students and country.
I really enjoy teaching languages and biology, as well as other topics such as geography, astronomy, geology and talk about traveling and sports, or any topic the student would like to. The easiest way to learn about an attractive topic and developing it the lesson, using intuition and adapting permanently to the student's level.
I do a lot of sports like high level cave and open water SCUBA diving, sailing, horse riding, mountain hiking, tennis, and others. I like friendly and "cool" classes, being relaxed and informal, yet rigorous on learning, loving also to have fun and make jokes.