I am an art teacher in Jinan. My parents say I am responsible, but I have been in some trouble recently.

It's really sad. You can use many methods. You can cultivate feelings with him slowly ... well ... it seems impossible. By the way, you can use rewards, such as giving the child who draws first a piece of candy, which is not expensive, or giving him a decal after painting within a limited time. This is a big board with a dollar, or secretly make a video to discuss with his mother and tell him that it is not good.