An Online Learning Platform for Students Aged 3 to 18 As the longest-running online education brand under the TAL, Xueersi a leading online learning platform for elementary and secondary school students and is among the first to integrate the Internet and education in China. We offer more than 230,000 high-quality courses with over 6 million students, from more than 200 cities in China. We were one of the first to adopt technologies such as facial recognition, sound recognition, and tactile interaction in online courses to generate more online learning data in order to reduce the gap between online and offline learning