Meimei (left) and Keke in cartoons on science. [Photo provided to China Daily]

As of January, more than 2,700 teachers nationwide had registered on the platform, which is totally free of charge for teachers in remote regions, he says.

Fascinated by all kinds of chemistry experiments, Liang studied chemistry at Tsinghua University for his bachelor's and master's degrees, and then obtained a doctorate in materials science from the University of Minnesota in 2011.

Liang is also an associate professor at the School of Humanities and Social Science at the University of Science and Technology of China, focusing on science communication and science policy. Moreover, he takes part in writing textbooks related to physical science.

Liang imports science videos from British education company, Twig Education, which help children to experience everything from the ocean to outer space in class.

Liang's team also makes cartoon films to help students better understand science. Two figures, elder brother Keke (meaning science) and younger sister Meimei (meaning beauty) tell stories in the cartoon that explain complicated scientific principles in an easy-to-understand way.