How do I know when I have a demerit/mark?

If you want to monitor the demerits/marks that you receive, you can check your slip in the student portal. If you are looking at today's date, you'll be able to see whatever behaviors you've earned. Behaviors will show up as soon as a teacher enters there. There is no delay for this. However, you'll have to be proactive and check on your own. Right now, Schoolrunner does not have a way to notify parents or students when a behavior is logged.