To decide if a Korean lesson or course is suitable for you, you can first refer to the Korean instructor's qualifications. Besides deciding to learn Korean from Korean native speakers and "Korean as second language" speakers, students interested in learning Korean can ask for the tutor's examination qualifications. In the TOPIK examination system, TOPIK II Level 6 is the highest. Also, students can see if the prepared teaching materials are of high quality. You should also be aware of teachers who charge an unreasonably low fee.