What is the use of history? Is it a semantical phenomenon? How can it be a powerful knowledge for students? This study aims to give some answers to these questions by doing interventions studies in the classroom, called Study Designs. The study is going to be carry out in Middle and High School in Sweden. The use of history is a meta-concept which is interested in how current societies use the past. And it exists in the national curriculum of social studies and history. In this direction, the aim of the study is to design exercises to be implemented in the classrooms, a quasi-experiment. Moreover, I intend to make a semantical analysis of central concepts in History instruction and examine how teaching on their different nuances can enhance students´ historical understanding and self-reflectivity. At this moment, I do not have results, as I am in the planning phase of the project, but hopefully at the conference, I will present some preliminary results.