Unfortunately, child abuse in the family is widespread. Associations with children from disadvantaged strata of society do not always justify themselves: more and more often a similar problem manifests itself in "normal" families.
Pay attention to the child's behavior - whether there have been any changes in his character. Perhaps isolation and alienation have appeared instead of the former sociability and friendliness. See how he interacts with peers - whether there is excessive aggressiveness in his behavior or, conversely, cowardice.
Apply testing techniques to measure family well-being. You can give an assignment to all group members or individually ask to draw a family. Study the students' work carefully. If the picture shows only one parent or no mom and dad at all, there is reason to think. Also, the drawings in which mom or dad are shaded with a dark color or are located in the corner of the sheet, have huge sizes, etc. should cause vigilance.
Talk to your child. Try not directly, but indirectly to learn about the situation in the family. You may ask: "What is your mother's job?" and "When is her birthday, what will you give?" etc. Similar questions can be asked about dad. Already by the way in which the child will talk about the parents, you can identify his attitude.
If you see bruises on the child's body, do not remain indifferent - actively ask where they came from. If the child tries to lie, you will feel it. Do not scold him for telling a lie - perhaps he has no other choice.
Visit the child's family if you suspect that they are being abused. Do not tell your parents the purpose of the visit. We can say that bypass all the families of pupils on the instructions of the school administration, etc. Try to learn little by little about the relationship between family members. Pay attention to the conditions in which the family lives, what moral values prevail.