I studied BA Translation and Interpreting, specialised in English and Spanish, although I also know French. I am offering to teach Spanish (from A1 to C2 level), English for Spanish speakers (from A1

Methodology

Depending on the language I have different methodologies. For English, I like for my students to speak and listen before they start writing, particularly if they are children. With adults, I also follow this technique, although I complement it with grammar explanations along the way.
I use "Look, listen and learn" as the main book to teach English for beginners and then I start using different books to reach a certain level (A2, B1, B2...)
With Spanish I use books depending on the student's needs (A2, B1, B2,C1...). During the first week I will explain the basics in English and then I will use Spanish for my explanations and to express myself. Should the student not understand me, I will explain in English. But I do like my students to get used to listening and speaking Spanish in class.
With Latin, I use a translation-grammar approach, which means that the student will only know how to read and translate the language. As it is a dead language, there is no need to speak it, just to understand the grammar and sentence structures so as to translate and understand correctly.