I agree with all of the above. If you want to help your student to get good writing skills, the first thing is that she should learn how to type with ten fingers. Most people don't seem to be able to do that hence a lot of typos.

Reading a lot is also good for enhancing writing skills, but the one and only thing that really gets one into writing is DOING it. You become a good writer by writing, so I was told. I was always a good letter writer, and had a couple of articles published in England, but writing to make money is yet another issue. So I wrote and wrote and wrote. I started on Wikinut.com until I was able to write star articles there each and every time.

Blogging is excellent to enhance writing skills!

Let's face it, it wasn't really fun to do all the essays in school or college and since we are not taught to have fun writing, even hate it subconsciously because of school or teachers, the biggest help will probably anything that is fun to write and where one can earn a bit of money maybe, like on the various writing platforms available.

As I fancied to do a writing course online, the only one I found back then was for writing children stories. So I took the course and thought, well, the basics will be the same for all writing. That proved to be correct.

Another thing I had to overcome at first was the "opinionated" writing. I'm very opinionated at the best of times, but journalism is "reporting" an issue without letting personal opinion flow in. For that are columns, books and blogs or websites.

So yes, if you could make it fun for your student, I think that would be the best help. Also check out YouTube, there are a lot of videos that teach writing.