In 2007, Swedish authorities introduced open publication of comparisons of students' results at the end of compulsory school. In this study, we investigated a municipality that had succeeded in breaking a negative trend from a bottom position in the ranking in 2007 to a top position in 2010, apparently through inclusive practices. The purpose of this study is to examine and isolate key elements that make a difference in schools and classrooms in the work with all students. Data were collected through interviews and classroom observations. Mary Douglas' cultural-cognitive perspective of institutional theory and the work of Ludwik Fleck are used to identify and analyse factors of importance to the increased goal fulfilment. The school's decision to end all segregated small group activities and to include all children in the normal classroom activity is examined. Moreover, the emphasis on teachers' reading and discussing of national and international research and focusing on all children's right to succeed in the classroom is analysed. The analysis suggests that focusing on goal fulfilment through inclusion gave a wider definition to the concept of successful schooling and changed the traditional thought style of the school.