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All Journal International Journal of Evaluation and Research in Education (IJERE) Jurnal Pendidikan Matematika Journal of Education and Learning (EduLearn) Pharmaciana: Jurnal Kefarmasian Jurnal Infinity AKSIOMA: Jurnal Program Studi Pendidikan Matematika Mutiara Medika: Jurnal Kedokteran dan Kesehatan Science and Technology Indonesia Union: Jurnal Ilmiah Pendidikan Matematika REiD (Research and Evaluation in Education) Jurnal Surya Medika Jurnal Berkala Kesehatan JPKMI (Jurnal Publikasi Kesehatan Masyarakat Indonesia) Journal of Mathematics and Mathematics Education (JMME) Procediamath Media Ilmu Kesehatan Theorems (The Original Research of Mathematics) Malikussaleh Journal of Mathematics Learning (MJML) SJME (Supremum Journal of Mathematics Education) Gammath : Jurnal Ilmiah Program Studi Pendidikan Matematika Jurnal Didactical Mathematics Jurnal Penelitian Pembelajaran Matematika Sekolah Jurnal Ners An-Nadaa: Jurnal Kesehatan Masyarakat Jurnal Educatio FKIP UNMA BERNAS: Jurnal Pengabdian Kepada Masyarakat Southeast Asian Mathematics Education Journal Community Empowerment Mosharafa: Jurnal Pendidikan Matematika Plusminus: Jurnal Pendidikan Matematika Jurnal Neuroanestesi Indonesia Makara Journal of Technology Progressive of Cognitive and Ability Journal of Research in Science and Mathematics Education INCOME: Indonesian Journal of Community Service and Engagement Indonesian journal of teaching and learning International Journal of Contemporary Studies in Education JNPM (Jurnal Nasional Pendidikan Matematika) International Journal of Mathematics and Mathematics Education (IJMME) Journal of Community Service Journal of Literature Language and Academic Studies (J-LLANS) JRAMathEdu (Journal of Research and Advances in Mathematics Education) Jurnal Infinity International Journal of Applied Learning and Research in Algebra International Journal of Geometry Research and Inventions in Education Jurnal Pendidikan MIPA Jurnal Pendidikan Progresif Mathematics Education Journal SJME (Supremum Journal of Mathematics Education) Eduma : Mathematics Education Learning and Teaching Jurnal THEOREMS (The Original Research of Mathematics)
Nia Kania
Universitas Majalengka, Indonesia
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Assessing cognitive obstacles in learning number concepts: Insights from preservice mathematics teachers Kania, Nia; Saepudin, Aep; Gürbüz, Ferit
JRAMathEdu (Journal of Research and Advances in Mathematics Education) Volume 10 Issue 3 July 2025
Publisher : Lembaga Pengembangan Publikasi Ilmiah dan Buku Ajar, Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jramathedu.v10i3.8638

Abstract

Persistent difficulties in learning abstract algebraic concepts—particularly among preservice mathematics teachers—continue to hinder students’ mathematical development. While prior studies have documented general misconceptions, few have grounded their analysis in comprehensive learning theories. Addressing this gap, the present study adopts the APOS (Action, Process, Object, Schema) theoretical framework to examine the cognitive obstacles encountered in understanding logarithmic, matrix, and quadratic function concepts. This qualitative study employed a descriptive case study design involving six preservice mathematics teachers with varying levels of mathematical ability (high, moderate, and low). Data were collected through written responses, semi-structured interviews, classroom observations, and cognitive mapping. The findings revealed that most participants were at the action stage, relying on procedural steps without deep conceptual understanding. Key cognitive obstacles included errors in applying logarithmic properties, difficulties integrating logarithms with matrices, and an inability to perceive systems of equations as unified entities. Group discussions proved effective in helping participants transition through the learning stages. Collaborative interactions enabled participants to identify errors, correct misconceptions, and strengthen conceptual understanding through reflection and validation. Furthermore, the use of visual tools, graphical representations, and real-world contexts supported deeper conceptual integration. This study underscores the importance of implementing APOS-based instructional strategies, including group discussions, exploratory exercises, and problem-based learning, to facilitate transitions between stages. The implications of these findings highlight the need for developing APOS-based diagnostic tools and innovative instructional designs to address cognitive obstacles effectively.
Analisis Faktor Yang Berhubungan Dengan Konsumsi Sayur Dan Buah Pada Kelompok Wanita Tani (KWT) Esabilita, Monica; Herawati , Herawati; Istiqamah, Ermina Istiqamah; Kania, Nia; Shadiqi, Muhammad Abdan
Jurnal Ners Vol. 8 No. 1 (2024): APRIL 2024
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jn.v8i1.23371

Abstract

Low consumption of vegetables and fruit is ranked 10th as a risk factor for death in the world. Around 2.7 million people in the world die every year, the low consumption of vegetables and fruit is related to factors such as knowledge of the availability of vegetables and fruit and support from the Women's Farming Group (KWT). To determine the relationship between knowledge, availability and support from friends in the Women's Farmers Group (KWT) in the work area of ??the South Hulu Sungai Regency Food Security Service. This study used a cross sectional design. The research subjects consisted of 72 people from the Women's Farmers Group (KWT) in the work area of ??the Hulu Sungai Selatan Regency Food Security Service. Data analysis chi square test and multiple logistic regression test. The results of analysis using chi square show the p value of the variables knowledge (p= 0.000), availability (p= 0.001), and friend support (p= 0.008). The results of analysis using multiple logistic regression show the p and Exp B values ??of the knowledge variable (p= 0.011, Exp B= 1.572), the availability variable (p=0.014, Exp B= 1.451), and the friend support variable (p=0.037, Exp B= 1,243). There is a significant relationship between knowledge, availability and support from friends in the Women's Farmers Group (KWT) in the work area of ??the Hulu Sungai Selatan District Food Security Service. The most dominant variable is knowledge.
Analisis Kesulitan Calon Guru Sekolah Dasar Dalam Menyelesaikan Soal Pemecahan Masalah Matematis Berdasarkan Prosedur Newman Kania, Nia; Arifin, Zaenal
SJME (Supremum Journal of Mathematics Education) Vol 3 No 1 (2019): January 2019
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Singaperbangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35706/sjme.v3i1.1471

Abstract

Tujuan penelitian ini untuk: (1) Memberikan gambaran mengenai profil calon guru Sekolah Dasar dalam pemecahan masalah matematis berdasarkan prosedur Newman; (2) Mendeskripsikan faktor-faktor yang menjadi penyebab mahasiswa mengalami kesulitan dalam setiap langkah pemecahan masalah berdasarkan prosedur Newman; (3) Memaparkan dampak yang ditimbulkan dari kesulitan mahasiswa dalam pemecahan masalah matematis; (4) Menemukan cara yang tepat dalam mengatasi kesalahan mahasiswa dalam pemecahan masalah matematis.Populasi penelitan adalah Mahasiswa Calon Guru Sekolah Dasar Universitas Majalengka. Sampel adalah semester V pada matakuliah Pemecahan Masalah Matematika. Pengambilan data diperoleh dengan pedoman wawancara, lembar observasi mahasiswa dan lembar soal tes untuk melihak kemampuan pemecahan masalah matematis mahasiswa. yang kemudian dianalisis melalui langkah-langkah; (1) Reduksi Data; (2)Penyajian Data; (3) Verifikasi. Hasil penelitian adalah Jenis kesulitan yang dilakukan mahasiswa dalam menyelesaikan soal  pemecahan masalah berdasarkan prosedur Newman; (1) Terdapat 33,33% subjek penelitian mengalami jenis kesulitan pada tahap comprehension; (2) Terdapat 16,67%  subjek penelitian yang kesulitan pada tahap transformation; (3) Terdapat 16,67%  subjek penelitian yang kesulitan pada tahap process skill; (4) Terdapat 16,67%  subjek penelitian yang kesulitan pada tahap encoding; (5) terdapat 16,67%  subjek penelitian yang tidak menggunakan prosedur Newman dalam menyelesaikan masalahnya. DOI: https://doi.org/10.31235/osf.io/brwgs
The Role of Ethnomathematical Context in Geometric Reasoning: A Van Hiele-Based Analysis of Indonesian Eighth-Graders Wibawa, Fayza Sandya; Kania, Nia
Jurnal Pendidikan Progresif Vol 15, No 4 (2025): Jurnal Pendidikan Progresif
Publisher : FKIP Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jpp.v15i4.pp2400-2422

Abstract

The Role of Ethnomathematical Context in Geometric Reasoning: A Van Hiele-Based Analysis of Indonesian Seventh-Graders. Objective: This study aims to analyze students' geometric thinking skills on plane geometry material based on Van Hiele's theory. An ethnomathematics approach was employed, focusing on the geometric patterns and shapes found in the ornaments, windows, and domes of local mosques, which serve as representations of plane geometry. This study is intended to describe the profile of students' thinking levels and the difficulties that arise at each stage of geometric thinking, without testing the improvement or influence of specific interventions. Methods: The study employed a qualitative descriptive approach with 22 eighth-grader students from a public junior high school in Majalengka Regency, Indonesia, as participants. The instruments used included a diagnostic test based on Van Hiele's theory and unstructured interviews to explore students' reasoning patterns. Data were analyzed using thematic analysis through the stages of reduction, presentation, and conclusion drawing, and validated through triangulation between test and interview results. Classification of thinking levels was carried out by matching students' answers and explanations to the indicators of each Van Hiele level. Findings: The study's results showed a significant decline in the achievement of each level of geometric thinking. All students reached the visualization stage; 81.8% reached the analysis stage, 22.7% reached informal deduction, and only 9.09% reached formal deduction, while no students reached the rigor stage. The sharp decline from the analysis to the deduction stage indicates students' limited ability to connect the properties of shapes and reason logistically. Interviews revealed that the local cultural context facilitated the visualization of shapes, but did not fully encourage higher deductive abilities. Conclusion: Students’ geometric thinking skills are primarily at the stages of visualization and analysis. The use of ethnomathematical contexts has the potential to act as an early cognitive bridge, facilitating students’ recognition of shapes and their properties. Compared to standard geometry problems, ethnomathematical problems better facilitate initial conceptual understanding through their connection to students’ cultural experiences, but their contribution to formal deduction remains limited. Keywords: geometric thinking skills, van hiele's theory, ethnomathematics.
Analysis of Factors Associated with The Incidence of Hypertension in Menopausal Women in The Teluk Tiram Health Center Working Area Ariani, Risna; Noor, Meitira Syahadatina; Sauqi, Hardyan; Illiandri, Oski; Kania, Nia
Jurnal Publikasi Kesehatan Masyarakat Indonesia Vol 12, No 3 (2025): Jurnal Publikasi Kesehatan Masyarakat Indonesia
Publisher : Lambung Mangkurat University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jpkmi.v12i3.23130

Abstract

This study analyzes the distribution of characteristics and factors associated with hypertension among menopausal women in the Teluk Tiram Health Center area. Hypertension is a significant health issue affecting postmenopausal women, yet local evidence from community-based health care in Indonesia is limited. A cross-sectional design was used, involving 105 menopausal women. Data collection included structured surveys assessing age at menopause, Body Mass Index (BMI), physical activity, stress levels, sleep quality, and history of hormonal contraceptive use. Bivariate analysis, utilizing chi-square tests, along with multivariate analysis through logistic regression, was conducted to identify associated factors. The findings indicated that early menopause, high BMI, low physical activity, elevated stress levels, poor sleep quality, and a history of combined hormonal contraceptive use were significantly related to hypertension. Multivariate analysis further identified BMI as the most influential factor, succeeded by low physical activity and high stress levels. These results underscore the importance of weight management, promotion of physical activity, and stress reduction strategies to lower the risk of hypertension in menopausal women. Ultimately, this research emphasizes the multifactorial nature of hypertension during menopause and calls for comprehensive prevention strategies in primary care settings.
Exploring Creative Thinking in Probability Through Polya’s Framework and Contextual Learning Mahmudah, Hilda; Kania, Nia
Mosharafa: Jurnal Pendidikan Matematika Vol. 14 No. 4 (2025): October
Publisher : Department of Mathematics Education Program IPI Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31980/mosharafa.v14i4.3452

Abstract

Kemampuan berpikir kreatif matematis merupakan keterampilan penting bagi siswa dalam menghadapi berbagai situasi yang menantang pada abad ke-21. Penelitian ini bertujuan untuk menganalisis bagaimana siswa menerapkan empat tahap pemecahan masalah Polya dalam menyelesaikan soal peluang kontekstual secara kreatif. Sebanyak 32 siswa kelas XII di salah satu SMA negeri di Majalengka terlibat sebagai subjek penelitian dengan pendekatan kualitatif deskriptif, dengan berdasarkan hasil tes tertulis, tiga siswa dipilih secara purposif untuk mengikuti wawancara mendalam, yang masing-masing mewakili kategori kemampuan berpikir kreatif tinggi, sedang, dan rendah. Data dikumpulkan melalui tes uraian kontekstual, observasi, dan wawancara semi-terstruktur. Hasil penelitian menunjukkan bahwa sebagian besar siswa mampu melaksanakan rencana penyelesaian secara sistematis, namun masih mengalami kesulitan pada tahap memahami masalah dan memeriksa kembali hasil. Hanya 16% siswa yang melakukan refleksi akhir secara efektif. Temuan ini menunjukkan bahwa sebagian besar siswa mampu melaksanakan strategi penyelesaian, yang mencerminkan kelancaran dan elaborasi dalam berpikir kreatif matematis. Namun, keterbatasan siswa dalam memahami konteks permasalahan membatasi keluwesan dan keaslian mereka dalam menghasilkan berbagai pendekatan penyelesaian masalah. The ability to think creatively in mathematics is crucial for pupils to deal with a variety of difficult problems in the twenty-first century. The purpose of this study is to examine how students creatively solve contextual probability questions using Polya's four stages of problem-solving. Using a descriptive qualitative approach, 32 twelfth-grade students from a Majalengka public high school served as research subjects based on the written exam results, three students were purposefully chosen to participate in in-depth interviews, each of whom represented the categories of high, medium, and poor creative thinking abilities. Semi-structured interviews, observations, and contextual essay examinations were used to gather data. The study's findings indicate that while most students can follow the solution plan methodically, they still struggle with comprehending the issue and analyzing the findings. Just 16% of students completed their final reflection successfully. based on the written exam results, three students were purposefully chosen to participate in in-depth interviews, each of whom represented the categories of high, medium, and poor creative thinking abilities.
ANALISIS KESALAHAN MAHASISWA PGSD DALAM MENYELESAIKAN SOAL PEMECAHAN MASALAH MATEMATIS BERDASARKAN GEORGE POLYA Nia Kania
EduMa: Mathematics education learning and teaching Vol. 7 No. 1 (2018)
Publisher : Jurusan Tadris Matematika UIN Siber Syekh Nurjati Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24235/eduma.v7i1.2711

Abstract

Penelitian ini bertujuan untuk mengetahui (1) Faktor-faktor apa sajakah yang menjadi penyebab mahasiswa melakukan kesalahan-kesalahan dalam setiap langkah pemecahan masalah George Polya; (2) Bagaimana cara mengatasi kesalahan mahamahasiswa dalam pemecahan masalah matematis? Subjek penelitian ini adalah mahasiswa semester V pada Program Studi Guru Sekolah Dasar Universitas Majalengka. Instrumen yang digunakan dalam penelitian ini berupa tes kemampuan pemecahan masalah matematis dan wawancara serta observasi.. Berdasarkan analisis data hasil penelitian, diperoleh kesimpulan bahwa (1) Faktor yang menyebabkan kesulitan mahasiswa yaitu (a) masih kurangnya pemahaman mahasiswa dengan materi yang diajarkan; (b) mahasiswa belum menguasai materi bangun ruang; (c) kurangnya daya ingat mahasiswa untuk mengingat kembali materi yang telah disampaikan; (2) Langkah-langkah penyelesaian yang ditemukan yaitu (a) membaca dan memahami; (b) menggali serta menuliskan informasi yang dapat dimunculkan dari soal; (c) memilih strategi penyelesaian; (d) mengerjakannya serta meneliti kembali jawabannya.  Keywords: Analisis Kesalahan, Pemecahan Masalah Matematis, Goerge Polya
Analysis of Student's Geometry Thinking Ability Based on Van Hiele's Theory Kania, Nia; Sudianto, Sudianto; Hanipah, Hani
Journal of Mathematics and Mathematics Education Vol 12, No 1 (2022): Journal of Mathematics and Mathematics Education (JMME)
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jmme.v12i1.62273

Abstract

The purpose of this study was to analyze students' geometric thinking skills in solving geometric problems based on Van Hiele's thinking stages. This research is a qualitative research. The subjects of this study were students of class XII MIPA 2 SMA Negeri Tomo, totaling 29 students. With purposive sampling obtained 6 research subjects representing the stages of thinking Van Hiele, data collection methods with test questions and interviews. Analysis of research data is data collection, data reduction, data presentation, and drawing conclusions. The results of the study are: no student can reach the rigor stage
Algebra essay questions: A validated instrument for evaluating the students' higher-order thinking skills Nia Kania; Florence M. Kyaruzi; Lilis Marina Angraini
UNION : Jurnal Ilmiah Pendidikan Matematika Vol 11 No 3 (2023)
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/union.v11i3.15688

Abstract

Indonesian pupils need help solving problems, particularly in mathematics, due to the need for practice questions with the higher-order thinking (HOT) type. This research aims to develop a reliable and valid tool for assessing students' higher-order thinking skills in mathematics. Developing a test involves gathering requirements, creating questions, assessing answers, running trials, analyzing data, making adjustments, and finally putting everything together. The instrument trial was conducted at SMAN at Majalengka, West Java. The total number of test subjects was 32 students. Research data were collected using a description test. The test instrument consists of 10 descriptions, but only 6 had good validity based on the value of V on the V-Aiken. In addition, the test package produces reliable questions based on Cronbach's Alpha scores. The test results of the instrument showed that the HOTS of mathematics for Grade X students was good. This step provides an overview to teachers in designing valid and relevant instruments.
The effect of learning interest on students' mathematical critical thinking ability in vocational high school Anggun Apriliani; Nia Kania; Iik Nurhikmayati
UNION : Jurnal Ilmiah Pendidikan Matematika Vol 11 No 3 (2023)
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/union.v11i3.15796

Abstract

This research investigates the impact of students' interest in learning critical mathematical thinking skills in the context of vocational high schools (SMK) by using a quantitative approach with correlational research methods. This research involved all class XI students of Ma'arif Al-Ghozali Vocational School as the population. Purposive sampling was used to select a sample of 30 students. Data analysis includes various statistical tests, including normality, linearity, correlation, and simple regression tests. The findings of this study reveal an essential relationship between students' learning interests and their mathematical critical thinking abilities. In particular, there is a significant favorable influence between interest in learning and students' critical mathematical thinking abilities. These results underscore the importance of nurturing and improving their mathematical critical thinking skills. This study contributes to our understanding of the factors influencing mathematical critical thinking skills in vocational high school students. It offers valuable insights for educators and policymakers seeking to improve mathematics education in such settings.
Co-Authors Aep Saepudin Aep Sunendar Agung Ary Wibowo, Agung Ary Agus Suhendar, Agus Akhmad Gazali Alexandro, Garry Amat Hidayat Anggraini, Farida Anggun Apriliani Angra Meta Ruswana Annaba, Aziz Anton Nasrullah, Anton Arcat Ariani, Risna Aulia Nisa Trisna Ihsani Azma Rosida, Azma Azmiyannoor, Muhammad Betty Kusumaningrum Budiwinata, Winardi Cut Fitriani Dadang Juandi Dede Eti Nurhasanah Devi, Wivina Riza Dewi Damayanti Hariri Dian Ana Mutriqah Didi Suryadi Didik Priyandoko Ebenezer Bonyah Ebenezer Bonyah Ebenezer Bonyah Ebrahim E. Elsayed Edi Hartoyo Eka Yudha Rahman Eko Suhartono Elah Nurlaelah Elah Nurlaelah Elis Rosmawati Elis Rosmawati Erik Santoso Erik Santoso Ermina Istiqomah, Ermina Esabilita, Monica Fahdyanoor, Fahdyanoor Fath, Tri Putra Nuur Fatharoni, Gusti Dicky Fayza Sandya Wibawa Febriana Kristanti Ferit Gí¼rbí¼z Ferit Gürbüz Fitria Sulistyowati Florence Kyaruzi Florence M. Kyaruzi Gürbüz, Ferit Hadiprasetyo, Dhanar Septyawan hanipah, Hani Harapan Parlindungan Ringoringo, Harapan Parlindungan Hardyan Sauqi Hariri, Dewi Damayanti Haryanti, Yuyun Dwi Hendriyanto, Agus Herawati , Herawati Hilda Mahmudah Huldani Huldani Iik Nurhikmayati Iik Nurhikmayati, Iik Ilham Muhammad Isma Nurhasanah Istiqamah, Ermina Istiqamah Iva Faridayanti Jajang Rahmatudin Jarnawi Afgani Dahlan Jarnawi Afgani Dahlan Julia, Rida Khairunnisa Khairunnisa Krida Singgih Kuncoro Krida Singgih Kuncoro Lilis Marina Angraini Lilis Marina Angraini M. Arif Hakim M. Gilar Jatisunda Mahmudah, Hilda Mardini, Heni Melis Rosdiani Mijani Rahman, Mijani Mira Sagita Mohamad Gilar Jatisunda Mohammad Bakhriansyah Mohammad Rudiansyah Muhammad Abdan Shadiqi Muhammad Azam Muthia Elma Nasir Umar Nelly Al Audhah Neneng Aminah Nila Nirmalasari, Nila Noor, M. Hafidhuddin Noor, Meitira Syahadatina Nunuy Ratnawulan Nunuy Ratnawulan Nunuy Ratnawulan Oski Illiandri Perdias, Antonio Poerwosusanta, Hery Pratama, Muhammad Noor Aditya Pratiwi, Amalia E. Rachman, M. Fathur Rahma, Aulia Rampun, Erdina L.A. Rika Septianingsih Rismawati, Silvyra Rismayani Rismayani Rismayani Rismayani Rismayani Rismayani Rizal Azis Roselina Panghiyangani Sabrina, Adilah Hafizha Nur Sanyoto, Didik Dwi Silvia Kristanti Tri Febriana Skripsiana, Nika Sterina Sri Asnawati, Sri Suci Trian Meliana Sudianto Sudianto Sudianto, Sudianto Suhana, Nono Sutapa, Hendra Tasya Indri Rangkuti Tri Nopriana, Tri Triawanti Triawanti Triawanti Vahid Norouzi Larsari Vahid Norouzi Larsari Vici Suciawati WAHYU WIDOWATI Wibawa, Fayza Sandya Yasir Yasir Yaya S. Kusumah Yaya S. Kusumah Yeni dwi Kurino Yonanda, Devi Afriyuni Yulizar, Deddy Rasyidan Yusup Maulana Zaenal Arifin Zaenal Arifin Zaenal Arifin Zaenal Arifin Zaenal Arifin Zaenal Arifin Zainal Abidin Zairin Noor