I have taught in different countries: USA, Japan, Asia and UK Having taught in different countries, helps me to understand students' mentality in learning Physics from different background. For example, some non-native speaker(English) understands the concept very well but they struggle to understand what the question actually means. Being an examiner, I am able to advise on the common mistakes student make in answering questions. Some of my students were surprised that they were actually losing marks on questions which they answered with full confident just because they missed the keywords and key concepts.