This is not my story, it's causing a lot of upset for a friend.
Teacher has a very strong accent that the students (apparently) find hard to understand. It's a Nigerian accent and the person who has raised it as a concern has been accused of racism.
Now, I remember having a Welsh science teacher and I did struggle to understand him for the first few weeks, but got used to it. This is apparently "worse" than that though.
Is there any offical requirement for teachers (in England) to have clear spoken English or is a regional or foreign accent just one of those things that students need to work around/learn to understand?
I sympathise with both sides TBH.