Abstract
This study aims to reveal the condition of students' reasoning abilities based on the way students argue. This research uses a qualitative-descriptive approach. The subjects in this study were 3 students of junior high school with high reasoning abilities and 3 students with low reasoning abilities who viewed the reasoning ability scores when providing problem solving solutions on the written test. The data obtained in this study were in the form of students' written test scores and the results of student interviews. Interviews were conducted to bring up students 'ability to argue that describe and reveal the condition of students' reasoning abilities in the process of solving problems. The results of students 'arguments are analyzed and adjusted to the model of StephenToulmin's argument which reveals that there are 6 components of the argumentation to show the seriousness of students in arguing in order to obtain valid argument results to assess students' reasoning abilities. The arguments from students succeeded in uncovering 4 conditions that describe the conditions of students' mathematical reasoning abilities. These conditions are: 1) Students who show high reasoning ability in written tests and are able to show their reasoning process in the arguments that are brought up, 2) Students who show low reasoning abilities in written tests but are able to show their reasoning processes in the arguments that are brought up, 3) Students which shows a high reasoning ability in a written test but have not been able to demonstrate the reasoning process in the arguments that are brought up, and 4) Students who show a low reasoning ability in a written test and have not been able to demonstrate their reasoning process in the arguments that are brought up.
Highlights
Reasoning is an important thing that needs to be considered in understanding a problem, both daily life problems and math problems
The arguments raised by students can help prove students' mathematical reasoning abilities validly
Argument analysis adapted to the Sthepen Toulmin argumentation model can bring out a picture of the student's reasoning process as a whole
Summary
Reasoning is an important thing that needs to be considered in understanding a problem, both daily life problems and math problems. In the reasoning done by students, it will be seen that the process of students in thinking to work on a given problem. This is in accordance with the objectives of the curriculum that is applied in Indonesia. In the current 2013 curriculum, learning emphasizes a scientific approach and character that emphasizes the assessment of process characteristics. The learning objectives are: 1) Understanding mathematical concepts, 2) Using reasoning on patterns and characteristics in solving problems, 3) Solving problems and having the ability to understand problems, 4) Communicating work results, 5) Having an attitude of appreciating the usefulness of mathematics [8]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
