Alberta Teachers' Association president Jason Schilling held a news conference on Monday as teachers are officially on strike. Schilling says it's not clear how long job action will last and urged the province to increase funding for education. Subscribe to CTV News to watch more videos: https://www.youtube.com/ctvnews Connect with CTV News: For live updates and latest headlines visit: http://www.ctvnews.ca/ For breaking news, fast, download the CTV News App: https://www.ctvnews.ca/app Must-