divorced child

i am a divorced parent of two boys two and five my five year old boy goes to kindergarden they have what they call red light he is a very smart child but likes to talk when told to lisen he comes home with yellow light or red light a lot i have puneshed hem in several ways and he promesh me he will be good but comes home agin with a bad report should i keep punishing hem are is this just a five year old boy

He is just 5 years old, but he will soon be in school. Pay interest to his behavior in kindergarten and admire him whenever he is able to adjust to the wishes of the teachers. Have som funny games at home, where he gets rewards, if he manage to listen instead of talking.