Understanding and accepting diversity means respecting and honoring every human being and his rights for independence and life without discrimination on every basis. The educational policy of Republic of Croatia encourages education in coherence with human rights and children's rights and its goal is to enable students for respecting diversity, tolerance, and life in a multicultural world. The key role in it has educational workers, teachers the most, whose task is to promote an inclusive culture where every student will savor its rights and accomplish the full growth of its potential no matter the psychophysical, social, or cultural specificity or its ethnical or other difference. To be able to succeed in it, the teacher should develop its professional competencies and include methods in a teaching process that will develop class community and tolerant environment that create a path towards embracing diversity, that is inclusion of every student regardless of its difference. Taken into consideration that the family has the most influence on shaping the child's pattern of behavior, which involves respecting diversity, the goal of this graduate thesis is to examine the role of a teacher in understanding and accepting diversity among students. For this purpose, a survey was conducted in one elementary school which included 2 classes. In the survey participated 18 students of 2nd grade and 19 students of 4th grade. The survey was conducted through pedagogical workshops and the data was collected using sociometric tests. The analysis of sociometric tests gave results that pointed out great opportunities for the teacher in understanding and accepting diversity among students. Also, the results of the survey indicate the significant role of the teacher in the development of the class community.