Got a gripe with your child's school? Don't mention it on Facebook. The Victorian Education Department has issued a warning that "inappropriately" complaining about schools on social media will not be tolerated.

Last month the department sent a "statement of values" to state schools outlining expectations of staff, student and parent behaviour.

The Education Department says 'inappropriately' complaining about schools on social media will not be tolerated.

The statement warns, in a general section, that a person who "inappropriately uses social media as a forum to raise concerns/makes complaints against the school" will have contravened the expectations.

It said principals would be responsible for "what constitutes reasonable and unreasonable behaviour".