Two levels of privacy for posts (both because they are needed, but also because current is unclear):
1. Visible / Not Visible to other staff. This should be marked as visible by default.
2. Visible / Not Visible to parents. This should be marked as not visible by default.
This will allow the use of activity notes to really record anecdotal and running observations, which are a fundamental part of classroom tracking, and something teachers might otherwise need to do on paper (especially interns who need to present these notes to their supervisors)