Another area where you can enter private notes is through student's and teacher's profile page while logged in as Admin.
There are 2 notes sections in their profile:
1. Private Notes for Admin Only
* Teacher's Profile - only admin can enter and view the notes.
* Student's Profile - admin and teacher can enter and view notes. Student cannot see the notes entered in this area.
2. Notes for teachers/ Notes for students – Admin, Teachers and students can view the notes entered here however, only admin can edit/enter the notes. Teachers and students can only view them.