To edit a teacher's Doodle account:
Log into the Teacher Dashboard
Select Manage > Teachers
Tap on the name of the teacher whose password you'd like to edit. A pop-up will then appear enabling you to edit their details.
Press Save in the bottom right-hand corner of the pop-up to confirm your changes
If a teacher leaves the school you should delete their Doodle account. To do this follow steps 1-3 above and then press Delete in the bottom left hand corner of the pop up that appears.