5 year old despair!

[SunshineofRay]

I have a very lively 5yo DS, his listening and concentration skills are quite
Poor and I'm looking for tips to try and improve them.
He goes to a martial arts class which o thought would help but he just acts silly, chatting to other children(he's a chatterbox)
His concentration is very easily broken!
Does anyone experience similar and if so how do you manage it?

My DD is 6 and hers isn't great either. She's bright, articulate, very physical and very busy and sociable. I think it will naturally improve as they age. My DD is my second and with number one I worried so much about this sort of thing.

I've since learned that in the UK schools expect rather more than many are able to give in the infants.