Calculus by GUO CHENGXI (aged 11)(434)

https://youtu.be/iuFoJ7-7mr8



Instructor:
GUO CHENGXI( 11 years old, Primary 5 from QIFA Primary School)
开讲者：
郭承曦（11岁，启发小学五年级）
Telegram: +65 92315167
Blog: https://chengguangchengxi.blogspot.com/
Wechat（微信）: Go-Singapore
E-mail: forstudentsg@gmail.com
Lessons In Mathematics and Science (Physics, Chemistry and Biology) From Primary to University Presented By Guo Cheng Guang and Guo Chengxi In English. Your comment or suggestion is very much appreciated.
https://www.youtube.com/channel/UC2dG5T9SJkUFTy-h0KbVbkw
更多关于承光（13岁）和承曦（11岁）用英文开讲从小学到大学的数学和科学（物理，化学和生物）视频. 欢迎您来点评赐教。
https://www.youtube.com/channel/UC2dG5T9SJkUFTy-h0KbVbkw