AIBU to feedback to school about teachers use of glottal stops

@NeverDropYourMooncup , In the case of the child being used to make a point, it's as likely that a hearing check (or a reminder to pay attention instead of thinking about random cooking ingredients in primary school) would be a more appropriate response than criticising the staff member.
The child was asked to spell cloves and spelt it correctly.

@RaraRachael , I think your definition of 'a posh accent' might be a generic Surrey accent and not a well-spoken version of English.

@Slightyamusedandsilly , I don't hear the 'extra letter (r)'. Some people say bath with the long way, some don't. If I hear the r then it is incorrect.

Drawer said as draw - incorrect.
Drawer said as draw-uh/draw-uhr - both correct
Drawing said as draw-ing - correct
Drawing said as draw-ring - incorrect

Clearly - because you're the person discriminating against them and seeking to affect their career. (It's affect, by the way. Did your accent prevent you from using the correct word?)

By the way, with the cloves/clothes distinction, I lipread following hearing loss. The differential between the two visually is tiny and aurally, practically nothing. It's also generally perfectly clear that you aren't adding socks to a Christmas cake mix or adorning oneself with a string of dried flower buds instead of a t shirt in order to leave the house. In the case of the child being used to make a point, it's as likely that a hearing check (or a reminder to pay attention instead of thinking about random cooking ingredients in primary school) would be a more appropriate response than criticising the staff member.

@YYYDlilah I lived in Surrey and the majority of people I came across had what I'd call a posh accent .

Obviously not everyone in SE England does.

If you do, I would pay good money to hear the talk in the staff rooms afterwards.

What about the southern long vowel sound? Sounds like there is an extra letter (r) in many words.

Barth instead of the short bath.
Farther instead of father.

Should that be corrected too?

'Posh' and well-spoken aren't the same. @RaraRachael . I understand your point about the r in year, but it isn't sounded in RP.
Who would be an example of 'SE 'posh' people'?

If a teacher was conducting a spelling test, I'd expect them to say sixth and year as siksth and yee-ur.

Err, the OP is a parent, not a school child.

Differing pronunciation of vowels between accents is one thing, but dropping letters isn't on. How children choose to speak informally is up to them, but they shouldn't be taught to drop letter sounds as though this is standard English.

Seriously as a teacher yourself, you must know how that 'complaint' to the school would be treated and viewed.
Pick your school battles. This isn't one!

To my ear all SE 'posh' people say yah as they don't pronounce the r at the end of the word.
Hope that's makes sense.

@RaraRachael , but the pp said 'well spoken'.
They are not well-spoken if they say sikth and yah.

@GarlicBreadStan , @Slightyamusedandsilly , OP isn't saying the teacher should use RP. She's saying the teacher should enunciate clearly. There's a difference.

A lot of SE English people say sikth instead of sixth and yah instead of year.

Where I live we say Granda rather than Grandad. I wouldn't have welcomed a parent telling me I was pronouncing it incorrectly by missing out the final d.

This is so bad...

People are fallible. Teachers have different accents. My DC speaks in a way that isn't pleasing to my ear because the local accent is not the one I grew up with and that until now DC has spoken in. It sounds incorrect to me.

But I'm not going to the school to demand they use my preferred enunciation. Even if it would enhance his phonic ability.

If you have a specific preference about the voices your child is surrounded by and therefore what they inculcate, I think maybe you need a private school who place value on the use of RP.

Otherwise, I'd stick to just reinforcing the bits you disapprove of quietly at home.

The thing that amuses me about your annoyance, OP, is that unless your child stays in one town for their whole life, they will hear loads of different accents and dialects (and even that isn't guaranteed, because of tourists and people who have moved to the area from a different part of the country), so you can't avoid this anyway. You're going to criticise a teacher, while being (or having been) one yourself, for most likely using their regional dialect, but how do you know that people don't judge you for yours? How you speak might sound "wrong" to me if I ever heard you, but I wouldn't say anything because I know that you're likely from a different area of the country than I am and truthfully, it doesn't matter.

Which area is this in? I understand you don't want to be specific to the town, but NE, SE, Scottish borders?

AND is the teacher native to the area?

Oh I fully agree! I have a mix of accents due to my mum being from Dover, my stepdad being from Essex and my dad being from Hull, and I've lived in Manchester before, but I'm originally from Hull myself 😂 most people can tell I'm from Yorkshire, but I also code-switch a lot depending on who I'm talking to, so some people struggle with guessing where I'm from. Generally I can understand what most people are saying regardless of their dialect. Just because people have a certain accent or dialect, it doesn't make them stupid, despite what OP thinks

No. It is a phonics lesson. How can the kids learn their phonics properly if the teacher doesn’t model the correct sound in their everyday speech? They won’t spell “letter” properly if they don’t hear “letter” properly.

Precisely. I can't tell you how weird 'well spoken' South Eastern pronunciation still sounds to my Irish ears, but I don't complain that sixth and year are pronounced incorrectly.
How are they mispronouncing sixth and year if they're well-spoken?

Yep. And that's all there is to it :)

Why is the use of the glottal stop, in an area where it is part of the local accent/dialect, failure, in your POV?

Classist?

Precisely. I can't tell you how weird 'well spoken' South Eastern pronunciation still sounds to my Irish ears, but I don't complain that sixth and year are pronounced incorrectly.

Spoiler - every accent is regional and has its quirks.