We have some of the strongest dialects in the country, but that isn't stopping a head teacher from Teesside taking one of them on.
Sacred Heart Primary in Middlesbrough has written to parents asking them to correct their children's English.
They say that telling pupils when - and when not - to use their dialects, will help them in the future.
Watch the full report from Dan Ashby below.
More top news
Often very windy, especially as we head into Sunday, with rain or showers. Met Office 'Be Aware' warnings have been issued
Here is our essential guide to all things Christmas in the North East.
Trainees work with life sized childbirth simulators