Self-concept appears to be an important construct in most of psychology areas, although its impact on interpersonal relationships on specific groups wasn't always recognised. Its relational character and development tendency when cooperative experiences are promoted support our study which most important goal was to test an intervention program impact with 60 first grade students' participants. A pre-test/post-test research with experimental and control-group was performed with Piers-Harris Children's Self-Concept Scale (Veigas' Portuguese adaptation, 1989). Results point out to experimental group self-concept improvement between pre-test and post-test.
Self-concept improvement; Intervention program; Interpersonal interaction
