Biology; Chemistry: revision classes;

I'm a British teacher actually based in Madrid but I am up to organising ONLINE classes in either Biology or Chemistry. I could help you with your syllabus material, especially, but not necessarily, if you are at an international school following the UK or Spanish syllabi. I have many years experience at Upper Primary or at Secondary level (till A'level in Biology) in General Science subjects and have given my classes in both English and Spanish. I have also worked at schools in Poland.