Student at RUG, studying mathematics and physics. Offer high level mathematics and physics classes, as well as high school level chemistry classes.

Guillermo is a very kind, loyal and intelligent person and friend who has helped me immensely in his mentoring of me in mathematics throughout my high school years through patience, and thoughtful explanations tailored to me, allowing me to understand making concepts in unique ways that I had never preivously considered making him a very adaptable teacher who can change his style depending on the student. Furthermore his great passion for mathematics and physics made the learning experience very enjoyable.
Noa Buck

I know Guillermo as we shared both physics and math class during our IB diploma. I was always impressed by Guillermos understanding of both math and physics aswell as how he is able to show you how he is able to understand these concepts. He will not make you memoize, but will go through the process of why something works by the use of deriving formulas or visualisation making it alot easier to remember, followed by practice questions so he can be confident in your understanding. He creates a very calm and stress free environment with no expectation of you to understand something the first time. This is because while teaching, you can see his deep interests and love of physics and mathematics and he always tries to share this with others.

I met guillermo due to familiy links. Guillermo helped me with my igcse math exam. Great teacher and easy to connect with. His teaching methods are entertaining but serious at the same time. We would first follow a theoretical explanation of a concept and he would explain it in different ways until I got it. Additionally he also used interactive apps like desmos to get a better feeling on what I was actually learning. I got an A* at the end, would definitively recommend for more young people. (He speaks English and spanish fluently and quite a lot of german too).

I bad troubles in all types of physics and math's f.e. calculus, mechanics, quantum mechanics etc. And Guillermo not only helped me learn these party of Math and physics really well, he also became a very good friend as he is kind, caring and has a lot of empathy. He is not only a tutor for math but also a friend who helps and listens. We started by searching for my problems and then Guillermo directly knew how he could teach them completely different to the book. Guillermo does not only have a very good sense of physics and math's but he has a very good sense of teaching. I hope to see him become a professor or teacher one day as he should use this talent for good use . Thank you again Guillermo for your service and time I hope we will stay in touch.

He has great understanding of problems and teaches his understanding in a way that every individual can understand. Personally he has helped me understand and improve my mathematical knowledge.

Guillermo is an amazing tutor, he will explain everything calmly and slowly if you need more time to understand! He is amazing in explaining various mathematical formulas and physics concepts, he helped me learn for my final exams in IB and I couldn’t have done it without him:)

Guillermo was an excellent math teacher for me because he made a subject that often feels intimidating much more approachable and clear. He had a way of breaking down complex problems into smaller, understandable steps, which helped me feel more confident as I worked through challenging material.

One of the best Math teachers I met in my life. If you are struggling with something, please do me a favor and ask my teacher Guillermo