If you use Blogger and or your students use Blogger, you may have noticed that Blogger is now automatically posting to Google+ whenever you publish a new blog post. You can disable this feature in the Google+ menu on Blogger. In that same menu you can also enable or disable Google+ comments. The two screenshots below provide directions on how to enable or disable Google+ settings in Blogger.
(If you’re Google+ profile is not connected to Blogger then this isn’t relevant to you. If you’re in a Google Apps for Edu domain and Google+ is not active for you then this is also not relevant to you).