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This teacher makes waves on Pornhub—by teaching calculus

By PINKY S. ICAMEN Published Oct 27, 2021 10:13 pm

In the deep recesses of Pornhub, alongside millions of pornography videos, are over 200 calculus tutorial videos created by a 34-year-old teacher, who took the unconventional route of teaching math in the world’s biggest porn site.

Changshu, who has a master’s degree in mathematics, has been teaching online and in Taiwanese schools for 15 years. 

In the adult video platform, he goes under the handle changshumath666 and operates with a verified account with the tag line, “Play hard, study hard.” His NSFW-free content, he is seen wearing a gray hoodie or shirt and solving mathematical problems on a chalk board. Changshu teaches in his native language, which is Mandarin.

If you are keen on learning through his Pornhub channel, just know that his “Recommended” videos are definitely from the NSFW category—actual porn. (He also uploads content on his YouTube channel.)

Speaking with Mel Magazine, Changshu said he thought of uploading his videos on Pornhub because since this kind of website attracts many viewers, he thought a lot of people will see his videos, too. 

It was in 2020 when he created an account in the adult video platform, where he started uploading videos. As of this writing, his channel has over 1.7 million views and more than 6,000 subscribers. As for his “Model Rank,” he’s at 1,684. 

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A post shared by 數學老師張旭 (@changhsumath)

Changhsu said his videos in the site directs business to the online course that he offers, from which he earns some 7.5 million new taiwan dollars or about P12.7 million annually. The money he earns from his online courses he uses to pay his employees who help him with his online lessons in different platforms. “Many students who need a teacher who can teach math know me through Pornhub, and some of them buy my course.” 

He has also attempted to take his lessons to other adult sites but he says “those platforms know which kinds of videos are adult and which aren’t, and they forbid them.”

With all these, Changshu is aware that not everyone who views his videos come to learn calculus, some of those just drop by for some laughs.

“People may not be interested in my videos, but they’ll all know there’s a teacher who teaches calculus on an adult video platform,” he said.

“I didn’t want to teach math on Pornhub,” he told the magazine. “I wanted to let the world know that I’m a teacher from Taiwan who can teach calculus well.”