I'm Dàlia, a sixth grade medical student. I have been teaching revision classes in mathematics, English, biology, history ... to children between 11 and 16 years old for five years. I have no problem getting around, and classes can be in both Catalan and Spanish (or English!). Normally I use the material provided by the school as a guide and base, working on the difficulties and doubts that have arisen about the content taught in the classroom. However, I adapt to the needs of the student, so other resources can always be explored.