When someone breaks a child's toy or something, you need to make out with the child and understand his experience. For example, "Are you sad that your glass is broken? If someone breaks mom's cup, mom will be sad, too. Come on, let's hug. " When the child's mood is stable, communicate with the child about feasible solutions. I saw this method in Miao Jie's early education theory, and it is really feasible after personal use. I hope it helps you.