Experienced teacher currently working as Head of Biology and Spanish teacher in an independent college in London. I offer A-level and GCSE Biology lessons. 10+ years experience.

Guillermo is excellent. He has a very structured, highly adaptable approach to teaching, and most importantly, he makes the classes easy and fun, no matter how challenging they can be.
I am still having lessons with him. Highly recommended.

Super professional and reliable. The one teacher you can trust for you kids to learn biology and science in general and as a bonus as a Spanish native speaker he can also teach Spanish! One of the best tutors you could choose!

Great Spanish tutor!! Guillermo helped me pass my DELE certification with great success!! He has great teaching abilities, very available and he is really invested for you to reach your goal!! Highly recommend

really good teacher and better person!

I highly recommend Guillermo. My child has improved a lot and also enjoy his lessons.

Amazing teacher! Makes lessons super dynamic. Thanks to him I managed to achieve an A on my assessments!

My son is enjoying his lessons with Guillermo, he is an excellent tutor! I would highly recommend to anyone looking for a Biology tutor.

Guillermo is a very dedicated teacher with over ten years experience teaching Biology and Spanish to a high standard in secondary education. His passion and love for teaching has not only helped most of his students achieve good results, but he has provided them with tools to succeed.