The difference between Traditional School Grammar ” TSG” and Grammar in context is that TSG was being used to best educate students to learn grammar in an understandable pace by making errors and learning from them. However, grammar in context is description of language structure, it is different than TSG because of it has a history of using grammar as a way to understand speech. I have thought of grammar as something that changes because as you grow older your grammar starts to change and you start to learn more and more about the grammar we use in our daily life. I think the rules of now are understandable, it helps your writing to be better and makes you learn how to apply those rules in your writing.
