I believe that Facebook is a great tool to use for connected learning and annotation. It can be used for communication and sharing information. Examples of these capabilities include sharing ideas, images, and videos. Its social aspects also allow for asking questions and commenting on posts.
Educators benefit from Facebook in communicating with colleagues all around the world while students can use it for an array of functions including group study, helping with homework, collaborating projects, test review, etc.
Are there any disadvantages of using Facebook? Yes there are. There are many disadvantages of Facebook especially to children and teens vulnerability, including but not limited to, password hacking, cyber addiction, and it is a gateway to the whole internet. There is also the threat of outside parties preying and abusing children on social media that must not be taken lightly. Because of these disadvantages, I think Facebook should not be used as a teaching tool for children or teenagers, but rather reserved as college level tool.