It's no secret that South Korea is obsessed about education, but who knew that teachers could profit so much from that craze? Cha Kil Yong is an online math tutor who is so successful, he reportedly earned around 8 million USD last year!

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Cha Kil Yong runs an online hagwon, or cram school, called SevenEdu where he prepares students for the math portion of the College Scholastic Ability Tests (CSATs). An average of 300,000 students take his class at any given time and pay $39 USD for his 20-hour courses. 20 hours is a long time, but he uses various props to engage his students, such as bunny hats and batman masks. He told the Washington Post that, as a teacher, "You're not only teaching a subject, you also have to be a multitalented entertainer."

Cha is a popular math tutor to the point of being a celebrity. He does TV ads and endorses products that claim to help students with their studying. He also recruits K-Pop stars to help him cheer on students taking the college entrance exams.

CSAT cheer with Clara

CSAT cheer with Brown Eyed Girls

CSAT cheer with Crayon Pop

Cha is not the only private teacher raking in the fame and fortune. Kwon Kyu Ho is a literature tutor who also makes appearances with K-Pop stars and gives lessons on Etoos and VitaEdu. He makes several millions of dollars per year.

According to the Washington Post, Kwon believes that private tutors have an edge compared to regular school teachers. He said, "I think one of the benefits of private education is that teachers compete with one another and try to develop higher quality content." He continued, "We have money. We can invest in ways that normal schoolteachers can not."

Image: Washington Post