The aim of the study is to explore the characteristics of social problem-solving, coping strategies and assertive communication among 5^th- and 7^th-grade students (N = 378). Communication is assessed with the Assertiveness Questionnaire (AQ, Gaumer Erickson et al., 2016), social problem-solving with the Social Problem-Solving Inventory–Revised (SPSI–R, D’Zurilla et al., 2002) and coping strategies with the Ways of Coping Questionnaire (WCQ, Lazarus & Folkman, 1988). The results show that mostly significant differences can be found between pre-adolescents and early adolescents in the three social fields. Low belief in problem-solving is more common among older students, and–besides the age difference–there are a number of areas where boys and girls differ, even among younger students. The SEM clearly identifies strong links between communication, coping strategies and problem solving. The results provide a more nuanced picture of boys’ social problem-solving, coping strategies and communication and the relation between them than before.