Letter Box writes:
Hi,
Attention is a real problem. It sounds as though your son maybe finding the increased complexity of Kindergarten difficult. I say this because the lack of attention has only just started.
I would ask the teacher more questions about your child's academic levels, socialisation and emotional balance at school. He could be having difficulties in socialisation and this could be impacting on his ability to attend.
Once you have more information, I could help further.