He even teaches college-level mathematics material. Until now, his followers have reached 2.9 million followers on social media. In his educational videos, the girl with the surname Gu stands in front of a whiteboard with a marker in her hand. Gu is very fluent in explaining various mathematical problems, ranging from geometry to functions and even calculus, and especially focuses on the typical difficulty level for first-year students.

"Thank you, Guru Gu, for helping me get five extra points," commented a student below his video. Gu's exceptional mathematical abilities at a young age stem from his deep interest in mathematics. He posts videos to share his approach to mathematics while exploring various learning methods."

"Now, more and more people are seeking advice from him, and he records the problem-solving process in daily videos that last three to five minutes. It is known that Gu is still attending elementary school and is considering competing in the International Mathematical Olympiad, a global mathematics competition for pre-university students. Source: SCMP"