Interesting resources on how other countries are teaching native languages or English

https://edsource.org/2016/preserving-native-american-languages-by-teaching-the-youngest-students/565007

https://www.theguardian.com/teacher-network/teacher-blog/2013/may/14/best-way-teach-language-schools

http://www.iosrjournals.org/iosr-jrme/papers/Vol-5%20Issue-2/Version-1/E05212630.pdf