Hello researchers, I have a question mainly on Finnish colleagues. In my PhD thesis I want to analyze teaching situations in mathematical education. As part of this analysis, I want to conduct research in my country as well as in Finland. I would like to use video as a research method, but the question is: what about the protection of pupils' personal data? I already have some experience with my diploma's research in Finland - it was difficult to submit just anonymous questionnaires. So will anyone advise me how is it with the new GDPR in Finland, and can I even think about my research plan? Thank you!