. ♪ ♪ >> gyal lo (speaking tibetan): >> narrator: gyal lo is a sociologist and advocate who was born ♪ ♪ >> lo: >> narrator: gyal lo set out to investigate what was happening in schools across tibet. >> lo: (papers rustling) >> narrator: keeping a low profile, he visited more than 50 kindergarten boarding schools for tibetan children. he says he discovered that despite official claims, there was often little teaching of tibetan language or culture. >> lo: yeah. >> narrator: there have also been concerns raised about episodes of abuse at schools. like in this video from one boarding school. and this cctv footage that prompted chinese authorities to suspend the teacher. (girl speaking mandarin) >> narrator: in this video, uploaded on chinese social media, as part of a boarding school assignment, a young tibetan girl has a message for other children. >> (speaking mandarin): >> (speaking tibetan): >> (speaking mandarin): >> (speaking mandarin): >> lo: >> narrator: gyal lo became outspoken about the need to preserve tibetan language and culture. but he says he eventually lost his universit