Any school that offers you a job on a tourist visa for more than a limited period of time is risky and you could be fined for that. It is more preferable to have a proper degree and then migrate to Korea to teach or else it can cause problems later. A proper visa and a minimum qualification is a must, to work in Korea as a teacher.
How long can a person hide the facts from the world! A bachelor’s degree is the minimum qualification while opting for jobs in Korea. If without a degree you come over to Korea with a motive of teaching you cannot last long and will start facing problems very soon. You will not be paid the amount of salary which was offered to you when you signed the contract. It’s always good to go through the right path and enjoy the pleasures of work.
Incase you are caught the immigration will try to figure out how much money you are making and you would be fined accordingly. They will put you on hold till you pay the last penny. Although you can teach illegally in Korea with a tourist visa, you will be heavily penalized if caught.