Abstract

Background : Abductive reasoning is the process of making conjectures to explain surprising observations. Although this conjecture is not certain to be true, in solving a problem, this reasoning is very helpful to determine the best solution strategy. Objectives : The study aims to investigate whether all types of abductive reasoning lead to the formation of new schemes. Design : This research used a qualitative approach with a descriptive exploratory design. Setting and Participants : A total of 41 students of the bachelor of mathematics education program were involved in solving a task and then 8 persons were chosen to be deeply interviewed which representing the types of undercoded and overcoded abductive reasoning. Data collection and analysis : The collected data were the results of the students’ works and task-based interviews. Piaget's schema theory was used to analyze students' thinking processes using abductive reasoning. The analysis was carried out at all steps of problem solving, namely understanding the problem, devising a plan, carrying out the plan, and looking back. Results : Those who carried out overcoded abductive reasoning used this reasoning to determine problem solving strategies. Meanwhile, those who carried out undercoded abductive reasoning used it to determine problem solving strategies as well as to form new schemes. Conclusions : The results showed that students who did abductive reasoning did not always produce new schemes. This study also notes that the truth value of answers from the application of abductive reasoning in problem solving was open and the importance of the look back step to perform accommodation.

Highlights

  • Problem solving ability is one part of higher-order thinking skills (HOTS) which is very useful for students to have to face their real life’s challenges

  • The purpose of this study is to investigate whether all types of abductive reasoning lead to the formation of new schemes

  • S1 found an oddity by a mismatch of information on the problem to be solved with what was known beforehand. It showed that S1 recognizes the existence of abductive problems as the initial stage of abductive reasoning

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Summary

Introduction

Problem solving ability is one part of higher-order thinking skills (HOTS) which is very useful for students to have to face their real life’s challenges. Cifarelli (2016) shows the important role of abductive reasoning in solving mathematical problems. Norton (2008) has shown the role of abductive reasoning in solving problems and building new schemes on students’ cognitive processes. Abductive reasoning is the process of making conjectures to explain surprising observations This conjecture is not certain to be true, in solving a problem, this reasoning is very helpful to determine the best solution strategy. Conclusions: The results showed that students who did abductive reasoning did not always produce new schemes. This study notes that the truth value of answers from the application of abductive reasoning in problem solving was open and the importance of the look back step to perform accommodation

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