Students' Arguments in Solving Probability Theory Problems Based on The Toulmin Argumentation Model

The role of arguments in solving mathematical problems is very important. Students must use valid and concepts that have been learned the Probability Theory material to build their arguments. An argument can be analyzed using Toulmin scheme. Therefore, purpose this study describe built based on Argumentation Model. instrument used collect data a test question related material. Of 32 students who worked questions, three were selected as research subjects. selection subjects ability students' level working questions. It was found construct an starting with correct data. However, they did not give any Warrant even Claim argument. This makes by invalid