Would it be inappropriate to tag a former teacher in a facebook post?

[Canadian]

So I had this really great teacher junior year of high school (I'm now in my junior year of college).

When I started college we became facebook friends. I'm posting a thing about banned book week, and wanted to mention/tag her in it, but i don't know if that would be bothersome or inappropriate.

[Tj Ulrich]

As long as the post isn't sexual or anything like that, this is perfectly fine unless the (facebook friend) says don't tag me again or something along that line!