• Yenny Anggreini Sarumaha

Kata Kunci:

justification, communication, learning mathematics, reasoning.


Justification is a core in leaning mathematics. Justification builds up students’ reasoning with a better way. It happens because in justifying, students are not only asked to explain their answer from solving mathematics problems, moreover, students are asked to explain whay those solution can be used and their answer is right. Albeit the purpose of justification in mathematics community has been studied, only little information can be gained about how its role in learning mathematics. This writing is an academic writing that being done by the writer based on the results of some research which implementing justification in learning process. The purposes of this writing divided into three parts, namely to know the role of justification in learning mathematics, to know the way that can be used by the teacher to support students to justify, and to know the way that can be used by the teacher in assess justification by the students.


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