Being a parent is sometimes a serious task! When our child becomes a teenager, serious physical and mental changes begin. How to adapt to the changes? How can we help our child's development? Our children are sometimes childish, sometimes adult. They are moving forward on the path of becoming an adult. Their changeability and mood affect the life of the whole family, but our task remains the same: we must help them to develop healthily. Psychotricks for ages 9-12 addresses the questions of early adolescence and gives clear, unequivocal answers. Canadian psychologist Suzanne Vallières is the mother of three children. Since 1990, he has been working with children and adolescents as a psychotherapist and developmental teacher. Since 1996, he has been writing informative articles on child rearing and is also a regular expert on television programs.