PENGEMBANGAN DESAIN TUGAS PENALARAN MATEMATIS MELALUI COUNTER EXAMPLE UNTUK MENUMBUHKAN KEMAMPUAN BERPIKIR KRITIS SISWA

Abstract

Abstract

This research is background by the lack of integration between mathematical reasoning
and students' critical thinking skills in mathematics. The facts obtained from interviews
showed that the assignments were given to students still use the questions contained in
the books, so that students have not fully used their reasoning to think critically. A good
assignment should be a task designed with attention to student response patterns so that
epistemological obstacles that often arise can be overcome. This study aims to develop a
mathematical reasoning assignment design by providing a counter example (CE), with
CE students can explore related assignments so that they can foster students' critical
thinking skills. This research was didactical design research which involved six students
using written tests and interviews. The results of the study revealed that the assignment
design with CE could reveal the presence of learning obstacle that hindered students'
critical thinking skills and able to overcome the learning obstacle. The conclusion is that
students' critical thinking skills have developed after being given a mathematical
reasoning design through the provision of CE, this is shown by the post-test average score
(62.56) which is higher than the pre-test average (15.03).
Keywords: Task Design, Counter Example, Critical Thinking Skills, Mathematical

Reasoning