Starting from this summer he joined the primary school. In the first week his teacher called me to express her concerns about my son's disruptive behaviors at school. She said he doesn't want to join group activities and makes noise from time to time.
I asked my son why he did such things, he told me he's bored. Sometimes he didn't understand what the teacher was saying in German class, sometimes he felt bored because "it was too easy" (e.g. counting numbers in math class -- he said he didn't understand the verbal part but understand the math part easily).
Seems to me he would feel better if he could know more about German, so I started learning German with or without him (I couldn't speak any German before). Then I started to realize he's extremely reluctant to learn it for reasons I don't know. He's energetic and smart, but somehow when we study German, he seemed totally absent-minded and did not learn much when we study together.
His German teacher told me he's not cooperative when she tried to teach him alone. Most of the kids learn 10 words per day, but my son still couldn't remember the words taught in the first week. She didn't feel he's making any progress on German and told me there's nothing she could do if he doesn't want to learn.
He has a twins brother and sister at similar ages so they play together at all times. I think that's probably why he thinks he doesn't really need German at all. A couple of month ago a boy in my community approaches him and they seem to get along well except they don't talk. They ride bike, wander around in the community, watch cartoon together, but they don't understand each other's native languages. They simply play without talking.
This week his teacher told me they'll have a science camp next week, and based on his behaviors so far, she suggests me to keep him at home and not let him join others at school. The request does bother me a bit since I don't want him to be isolated from other students but on the other hand I don't want to cause too much trouble for his teacher.
Overall I think he's still interested in school. I asked him if he wants to try other schools, and he said no. I'm running out of ideas and don't know what to do to help. Does anyone have similar experience that can be shared?