Lucy Thacker 
When writing messages and posts in teams you can add tags, these are simply words or phrases with a # in front. By adding the tag to messages you can easily search for any message relating to that specific topic and then filter further.
Below is a short video demo explaining how to add and search with tags.
Now that you know about tags – go have a go yourself!
Please note: All information is accurate at the time of posting but the Brightspace / Teams layout may have updated.
For more help or information on this tool, check out the iPark website for handy how-to guides; or Brightspace Bytes on Brightspace for helpful screencast tutorials.
Usually I do not learn post on blogs, but I would like to say that
this write-up very forced me to try and do it!
Your writing style has been surprised me. Thanks, very nice article.