I have taught English online and offline. I taught grammar, TOEIC, Business Englsih, OPIC and TOEFL. My previous students were mostly business people. I helped them improve their speaking skills which they needed on their business trips and also for their promotion. I had Chinese, Spanish, Japanese and Korean students. I was a teacher offline teaching Korean middle school students for 1 year and online teacher for 8 years handling Koreans, Chinese, Japanese and Spanish students.