Review of a book about the history of grammar rules and prescription - most relevant to A2 students when their research project is done, so pop back and read it later. They did get cross about their linguisticals.
Grappling Grammarians
http://online.wsj.com/article/SB10001424052970204224604577028243560830070.html
Grappling Grammarians
http://online.wsj.com/article/SB10001424052970204224604577028243560830070.html