This study explores the impact of the transition from primary to secondary school, using data from 98 Dutch primary education children. We focus on the child’s point of view and gender differences in this. The results show that, before the transition, children are mostly worried about the continuity of relationships. Furthermore, girls are particularly interested in the social environment, where boys mostly think it is important to know someone at secondary school. After the transition most children realise that they have underestimated the social emotional aspect. Many felt unprepared for the new social environment and were dependent on external support.