Social Progress Imperative data shows that in 2014 - 2017 intolerance in Indonesia tend to increase. In 2014, an intolerance score was 27.90 increased to 32.30 in 2015. Then, in 2016 decreased to 29.57 and rose to 35.47 in 2017. This data put Indonesia in rank 117 of 128 countries with category of intolerance. In diversity, tolerance is an attitude that needs to be developed early, both in family and school. School is an environment where children learn to understand diversity and develop positive attitudes in the face of diversity. Tolerance is one of the fundamental characters in children's education. There are 9 basic characters that must be embedded in children, they are: (a) the love of God and the universe and its contents, (b) responsibility, discipline and independence, (c) honesty, (d) respect and politeness, (e) affection, caring and cooperation (f) confidence, creative, hard work, and never give up, (g) justice and leadership, (h) kind-hearted and humble, (i) tolerance, peace, love and unity. Without tolerance, child's character will not be formed properly. Concrete operational development will increase their experience, logic and objective. The children can classify objects, commands, and solve problems in a concrete and systematic way, based on what is obtained from environment. At this stage, the thinking ability of the children is also rational, imaginative, and able to dig more objects to solve the problem. Children can remember past events and become aware of repetitive activities even though they may not be deep. At this stage, children also have begun to be able to judge things from the perspective of others. Refer to the stage of development, children are able to think logically of events that are real, understand the conversation with others and begin to argue and solve the problem so that the cultivation of tolerance will become easier, and then it will form a generation of multicultural nation that is tolerant, peaceful, and harmonious. Research question of this topic was whether there is a relation between tolerance and attitudes toward diversity in children in the concrete operational development? The purpose of this study was to analyze the relation between tolerance and attitudes toward diversity in children in the concrete operational development. This type of research was quantitative research. The research design was descriptive and correlational. The number of samples in this study were 100 elementary school students. Data collection methods in this study used questionnaire. This research instrument used tolerance scale (r = 0.786) and attitude scale toward diversity (r = 0.930) developed based on aspects of Interpersonal Tolerance Scale (IPTS) and Miville-Guzman Universality-Diversity Scale - Short Form (M- GUDS-S). Data analysis technique in this research used Pearson's product moment correlation analysis technique with SPSS software 22.0 for windows. The results showed that H₀ was rejected and H₁ received (α <0.05). Thus, there was a relation between tolerance with attitudes toward diversity in children in concrete operational development. Conclusion of this study showed that tolerance toward diversity caused by school environment which have activity to build character of children that tolerant toward diversity such as holding annual cultural show. Attitudes toward diversity were shown by mutual respect for ethnic and religious differences among friends and the desire to play without distinguish their background. The results of this study indicated that tolerance and attitudes toward diversity can be inculcated early but the method should be adjusted to the condition of the students. The value of tolerance is important to be raised and developed as a multicultural nation asset that is tolerant, peaceful, and harmonious. The results of this study are expected to be a literacy reference for educational institutions, practitioners, and academics in establishing early childhood education programs based on tolerance and multicultural.

Keywords: tolerance, multicultural education, concrete operational development.

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