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All Journal Union: Jurnal Ilmiah Pendidikan Matematika International Journal of Research in Mathematics Education
Muhammad 'Azmi Nuha
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Education Mathematics

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Perbedaan Kemampuan Pemecahan Masalah Matematika pada Setiap Rentang Usia Muhammad 'Azmi Nuha; Ragil Meita Alfathy
UNION : Jurnal Ilmiah Pendidikan Matematika Vol 9 No 2 (2021)
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/union.v9i2.10119

Abstract

Mathematics is a basic science which is about logic regarding form, structure, quantity and other related concepts. The ability to solve problems is basically the main goal of the mathematics learning process. The purpose of this study was to determine (1) whether there are differences in math problem solving abilities in each age range and (2) how to describe the ability to solve math problems in each age range. The method used in this research is quantitative research methods with a survey research approach. The instrument in this study was a questionnaire containing 3 mathematical problem solving questions related to everyday life which were uploaded to google form. The number of people who filled out the survey on the google form is 2085 people. The results showed that (1) there were differences in math problem solving abilities in each age range group, and (2) the age range group that had the highest problem solving ability was 43-48 years old, while the age range group that had the lowest problem solving ability was 43-48 years old. 55-60 years old.
Teachers’ Experiences with Students’ Learning Obstacles in Geometric Thinking: Insights from the van Hiele Framework Muhassanah, Nur'aini; Muhammad 'Azmi Nuha; Riski Aspriyani
International Journal of Research in Mathematics Education Vol. 3 No. 2 (2025)
Publisher : Faculty of Tarbiya and Teacher Trainning, Universitas Islam Negeri Prof. K.H. Saifuddin Zuhri Purwokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24090/ijrme.v3i2.15429

Abstract

Understanding geometric concepts is often a challenge for students because it requires spatial thinking and deductive reasoning skills that develop gradually. This study aims to describe the barriers to student learning in geometric thinking based on teacher perceptions using van Hiele's theoretical framework. The research approach used was qualitative with a phenomenological design, involving 49 junior high school mathematics teachers from 35 schools across seven districts. Data were collected through questionnaires and in-depth interviews, then analyzed thematically. Interview data was collected from only six teachers selected through purposive sampling. The results of the study showed that students' learning barriers increased as their geometric thinking level increased. At level 0 (Visualization), the barriers were low (58.63%) because students were still able to recognize shapes visually. At level 1 (Analysis), the barriers increased to 64.61% (high category) because students had difficulty finding relationships between the properties of shapes. At level 2 (Informal Deduction), the barriers reached 72.48% (high category), especially in the use of formal mathematical language and the preparation of logical arguments. In addition, the results showed that epistemological barriers were related to weak mastery of basic concepts, ontological barriers were related to misclassification of geometric objects, and didactic barriers stemmed from external factors such as learning strategies and learning motivation. Overall, these results emphasize the need for contextual, tiered, and exploratory geometry learning designs to reduce learning barriers at every level of student thinking.
Co-Authors Muhassanah, Nur'aini Ragil Meita Alfathy Riski Aspriyani