> Schools in mainland China are allowed to only teach in Mandarin, not the local dialects This is not exactly true. Core subjects, like math, history, and sci

> Schools in mainland China are allowed to only teach in Mandarin, not the local dialects This is not exactly true. Core subjects, like math, history, and science must have a unified curriculum taught in Mandarin. However, there are language, art, and humanities classes that teach and preserve other Chinese dialects/languages.