Teacher influenced by child's behaviour

[NOMA0512]

My son just turned 6 and is in last year of kindergarden.He is very impulsive and has gotten into trouble with the teacher in the past 4 weeks.  These are the things he got up to in the past 4 weeks(the ones I know about):
-He was playing in the garden at school and he made a wee right there whilst playing with his friends.  The teacher was very cross and called me about this.  
-He broke wind in class and said excuse me and the teacher said it is very rude especially sitting next to a girl.I also think it is impolite but how do you get a child to control that.
-He and three friends poured sand over the bicycle track and the teacher was cross.
-He likes to talk in class.
After giving you this "brief' background one can see that my child is not the teacher's pet.  Anyway this morning i dropped him off at school and the teacher said she has been meaning to talk to me about the fact that his math knowledge is weak. I told her that I find that puzzling unless he memorises the answers when I ask him additions and stuff.  She told me to use objects instead of just asking him.  She then demonstrated her method and quizzed him in front of me.  My son got all the five answers right, and she then said he took too long to give  two answers out of the five and he must practice(I think she was embarassed that her initial assessment was incorrect). I do not know what to think because my son has been complaining that his teacher is harsh on him and he is such a sensitive soul even though I know he is not always an "angel".  This morning he greeted her and she responded in a very cold manner.

[Kevin Kennedy, Ph.D.]

Is this worth investing any energy at this point? He is nearly done with this year and will then move on. My sense is to leave the situation alone and simply support him as he completes the year, setting limits (e.g., re: urinating outside) when necessary.

[Kevin Kennedy, Ph.D.]

Yes, your approach sounds wise. You clarified for me that ther actrually is time to address the matter with the teacher, but I think your plan is good. It capitalizes on the benefit your son will recieve by adhering to whatever guidelines the teacher establishes.

[NOMA0512]

thanks for the advice. The academic year starts in January here so I suppose it's only six more months if I look at the positive side of things.  I will continue to support him and also try and set the limits so that he can try and stay out of trouble.  With these things once you are branded, it is difficult but I will also concentrate on boosting his self-esteem.

[NOMA0512]

With the math assessment it could be that it was done once and/or perhaps at a bad time or in a speedy method OR the teacher is just bias due to his behaviour at times.  I once wrote about him being sensory processing disorder(SPD) and he has improved a lot.  This has not interferred with his academic progress and it is just the impulsive behaviour that I am sure would irritate most teachers
Has anyone experienced this from a teacher and any advice on how to handle it in an assertive but yet sensivitive manner.