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All Journal Kreano, Jurnal Matematika Kreatif-Inovatif Jurnal Pendidikan Matematika RAFA Jurnal Elemen EDU-MAT: Jurnal Pendidikan Matematika JPPM (JURNAL PENELITIAN DAN PEMBELAJARAN MATEMATIKA) AKSIOMA MaPan : Jurnal Matematika dan Pembelajaran Journal of Mathematics and Mathematics Education (JMME) PRISMA Cetta: Jurnal Ilmu Pendidikan Theorems (The Original Research of Mathematics) SJME (Supremum Journal of Mathematics Education) Jurnal Cendekia : Jurnal Pendidikan Matematika Prima: Jurnal Pendidikan Matematika FIBONACCI: Jurnal Pendidikan Matematika dan Matematika BIORMATIKA : JURNAL ILMIAH FAKULTAS KEGURUAN DAN ILMU PENDIDIKAN ALGORITMA : Journal of Mathematics Education JPMI (Jurnal Pembelajaran Matematika Inovatif) JP2M (Jurnal Pendidikan dan Pembelajaran Matematika) BERNAS: Jurnal Pengabdian Kepada Masyarakat JagoMIPA: Jurnal Pendidikan Matematika dan IPA FARABI: Jurnal Matematika dan Pendidikan Matematika ELIPS: Jurnal Pendidikan Matematika ACADEMIA: Jurnal Inovasi Riset Akademik Prosiding Sesiomadika Journal of Mathematics Instruction, Social Research and Opinion Journal of General Education and Humanities International Journal of Didactic Mathematics in Distance Education SJME (Supremum Journal of Mathematics Education)
Rika Mulyati Mustika Sari
Universitas Singaperbangsa Karawang
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Dentistry Education Environmental Science Languange, Linguistic, Communication & Media Mathematics Neuroscience Nursing Physics Public Health Social Sciences Veterinary Other

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Analisis kesulitan belajar siswa SMA pada pembelajaran geometri Sari, Rika Mulyati Mustika; Roesdiana, Lessa
AKSIOMA : Jurnal Matematika dan Pendidikan Matematika Vol 10, No 2 (2019): AKSIOMA: Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/aks.v10i2.4253

Abstract

Geometry is one branch of mathematics for high school level, one of which is cone slices which deal with circles, ellipses, parabola, and hyperbole. However, from the data obtained in the last few years from the PUSPENDIK the value of the students' mathematics at the Geometry branch is always lower than the other branches of the mathematics branch. This is what encourages researchers to conduct preliminary research that aims to analyze and describe student learning difficulties in learning geometry. The benefits of this research are a reference for research to develop appropriate mathematics teaching materials and in accordance with the characteristics of geometry. This research use desciptive qualitative approach. Methods of data collection are observation, interviews and questionnaires. Analysis of the data used is using the Miles and Huberman models which include: data reduction, data display, and conclusion drawing / verification. The results of this study are in the form of a description of learning difficulties faced by students in learning geometry.   Keywords: learning difficulties, Geometry 
Analyzing Students' Mathematical Spatial Literacy Using a Project-Based Blended Learning Model Priatna, Nanang; Mustika Sari, Rika Mulyati
Kreano, Jurnal Matematika Kreatif-Inovatif Vol 13, No 1 (2022): Kreano, Jurnal Matematika Kreatif-Inovatif
Publisher : Mathematics Dept, Math. and Science Faculty, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/kreano.v13i1.34995

Abstract

The application of project based blended learning in analyzing mathematical spatial literacy is described in this article. The research method used is descriptive quantitative. Participants in the study consisted of 33 students of class XI at one public high school in Bandung Regency. The type of research used is pre-experimental with a one-shot case study design, the subject is taken by simple random sampling using purposive sampling technique. Data analysis in this study is quantitative data analysis in the form of descriptive statistical tests and differential statistical tests. Based on the results of calculations using descriptive statistical tests that students in the high category were 10 students (3%), the medium category was 21 students (64%) and the low category was 2 students (6%). The results of the differential analysis for the normality test of the data are not normally distributed and from the results of the calculation of the median test obtained 0,0148782 ≥ 0,025, this means that the results of this test conclude that at a 95% confidence interval, the median mathematical spatial literacy ability of students after the Project based blended learning model is applied can reach KKM.Penerapan project based blended learning dalam menganalisis literasi spasial matematis dideskripsikan dalam artikel ini. Metode penelitian yang digunakan adalah deskriptif kuantitatif. Partisipan dalam penelitian terdiri dari 33 siswa kelas XI pada satu SMA Negeri Kabupaten Bandung. Jenis penelitian yang digunakan pre-experimental dengan desain one shot case study, subjek diambil secara simple random sampling dengan menggunakan teknik purposive sampling. Analisis data dalam penelitian ini adalah analisis data kuantitatif berupa uji statistik deskriptif dan uji statistik iferensial. Berdasarkan hasil perhitungan menggunakan uji statistik deskriptif bahwa siswa yang memiliki kategori tinggi 10 siswa (3%), kategori sedang 21 siswa (64%) dan kategori rendah 2 siswa (6%). Hasil analisis iferensial untuk uji normalitas data tidak berdistribusi normal dan dari hasil perhitungan uji median diperoleh 0,0148782 ≥ 0,025, ini berarti Hasil pengujian ini memberikan kesimpulan bahwa pada selang kepercayaan 95%, median kemampuan literasi spasial matematis siswa setela diterapkan model Project based blended learning dapat mencapai KKM.
The Effect Of STEM-Based Project-Based Learning In Improving High School Students' Visual Mathematical Ability Sari, Rika Mulyati Mustika; Sopiany, Hanifah
SJME (Supremum Journal of Mathematics Education) Vol 7 No 2 (2023): Supremum Journal of Mahematics Education
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Singaperbangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35706/sjme.v7i2.8934

Abstract

This research is based on the problem of the low mathematical visual thinking ability in learning mathematics. To overcome this, research was carried out using a STEM-based Project-Based Learning (PjBL-STEM) model. This study examines the problem of improving visual mathematical abilities among students who receive mathematics learning with the STEM-based Project-Based Learning (PjBL-STEM) model. This research is quasi-experimental, the design used is the Nonequivalent Control Group Design using the Purposive Sampling technique. The population in this study were high school students in Bandung Regency in the academic year 2021/2022, with the research sample being high school students in class X. The instrument used in the study was a visual mathematical ability test. Data analysis was carried out quantitatively by using the Independent Sample t-test. The results showed that (1) Overall the application of the PjBL-STEM learning model could improve students' mathematical visual thinking abilities, (2) Improved mathematical visual thinking skills of students whose learning using the PjBL-STEM learning model was significantly better than students who learned using conventional learning models.
Pengaruh Deep Learning terhadap Kemampuan Pemecahan Masalah Geometri Siswa Kelas IX Saeful Hamzah, Karto; Sari, Rika Mulyati Mustika; Zulkarnaen, Rafiq
Jurnal Pendidikan Matematika RAFA Vol 12 No 1 (2026): Jurnal Pendidikan Matematika RAFA
Publisher : Program Studi Pendidikan Matematika, Universitas Islam Negeri Raden Fatah Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19109/jpmrafa.v11i2.32146

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh penerapan pembelajaran deeplearning terhadap kemampuan pemecahan masalah matematika siswa pada materi geometri kelas IX SMP. Penelitian ini menggunakan pendekatan kuantitatif dengan metode ex post facto, yaitu penelitian yang mengkaji hubungan sebab-akibat berdasarkan data yang telah terjadi tanpa memberikan perlakuan langsung terhadap variabel. Subjek penelitian terdiri atas siswa kelas IX di SMPN Satu Atap 1 Jayakerta Kabupaten Karawang yang telah menerapkan pembelajaran mendalam dan sudah mempelajari materi geometri. Data dikumpulkan melalui tes kemampuan pemecahan masalah dan dokumentasi hasil belajar siswa. Hasil penelitian menunjukkan bahwa terdapat pengaruh signifikan penerapan pembelajaran deeplearning terhadap kemampuan pemecahan masalah geometri siswa. Hal ini menunjukkan bahwa pembelajaran mendalam memberikan pengaruh positif terhadap kemampuan analisis, penalaran, dan refleksi siswa dalam memahami konsep geometri.
Strategi Pemecahan Masalah Geometri Siswa SMP Berdasarkan Gender dan Fase Polya Suryaningsih, Eka Irmas; Zulkarnaen, Rapiq; Sari, Rika Mulyati Mustika; Nur, Iyan Rosita Dewi
JagoMIPA: Jurnal Pendidikan Matematika dan IPA Vol. 6 No. 2 (2026): JagoMIPA: Jurnal Pendidikan Matematika dan IPA
Publisher : Yayasan Pendidikan Bima Berilmu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53299/jagomipa.v6i2.4281

Abstract

Studi ini difokuskan untuk mengkaji adanya perbedaan kapabilitas murid laki-laki dan perempuan dalam menuntaskan permasalahan matematika pada topik geometri bangun datar dengan mengacu pada langkah-langkah pemecahan masalah menurut Polya. Metode yang diterapkan adalah pendekatan kuantitatif dengan rancangan komparatif berbasis potong lintang (cross-sectional). Partisipan penelitian berjumlah 158 murid kelas VIII SMP, yang terdiri dari 79 murid laki-laki serta 79 murid perempuan. Alat pengumpulan data yang digunakan berupa tes esai pemecahan masalah matematika yang dirancang sesuai dengan empat fasean Polya, meliputi fase memahami permasalahan, menyusun rencana penyelesaian, melaksanakan strategi yang telah dirancang, serta melakukan peninjauan ulang terhadap hasil yang diperoleh. Selanjutnya, data diolah melalui analisis statistik deskriptif, pengujian normalitas memakai Shapiro–Wilk, serta uji beda Mann–Whitney U. Temuan penelitian mengindikasikan jika ada perbedaan yang bermakna dalam kapabilitas dalam pemecahan masalah matematika antara murid laki-laki dan perempuan pada tingkat signifikansi 0,05 dengan kategori effect size sedang. Perbedaan tersebut paling menonjol pada fase memahami persoalan dan mengevaluasi kembali hasil, sementara pada fase pelaksanaan rencana, kedua kelompok memperlihatkan tingkat kapabilitas dalam yang cenderung setara. Murid perempuan cenderung lebih konsisten dalam mengidentifikasi informasi penting pada soal dan melakukan verifikasi terhadap jawaban yang diperoleh. Temuan ini memperlihatkan jika variasi kapabilitas dalam pemecahan masalah matematis tidak hanya berkaitan dengan penguasaan prosedur, tetapi juga dipengaruhi oleh strategi kognitif dan metakognitif. Sebabnya, kegiatan edukasi matematika perlu dirancang dengan menekankan aktivitas reflektif dan penguatan strategi penyelesaian masalah secara sistematis.
Comparative Study: Differences in Students' Geometric Reasoning Viewed from Van Hiele's Levels of Geometric Thinking Thiara Ayu Sheila; Rika Mulyati Mustika Sari; Rafiq Zulkarnaen; Iyan Rosita Dewi Nur
PRISMA Vol. 15 No. 1 (2026): PRISMA
Publisher : Universitas Suryakancana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35194/jp.v15i1.6225

Abstract

This study aims to determine the differences in students' geometric reasoning in terms of Van Hiele's thinking levels in spatial geometry. This study used an ex post facto method with a quantitative approach. The population of this study was ninth-grade female students at SMP Negeri 2 Majalaya, with a sample of 86 students selected using simple random sampling. Data were obtained through diagnostic tests, geometric reasoning tests, and unstructured interviews with several samples. This study uses several inferential statistical tests such as normality tests, homogeneity tests, and ANOVA. The results of this study indicate that there are significant differences between the geometric reasoning abilities of students at level 0 and level 1, as well as between level 0 and level 2. The number of students classified as level 0 (visualization) is 69.77%; level 1 (analysis) is 24.42%; and level 2 (informal deduction) is 5.81%. No students were classified as level 3 or 4.
Creative Thinking Ability of Vocational School Students in Contextual Trigonometry Learning Using Futsal Adinda Sahira; Kiki Nia Sania Effendi; Rika Mulyati Mustika Sari
Journal of General Education and Humanities Vol. 5 No. 2 (2026): April
Publisher : MASI Mandiri Edukasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58421/gehu.v5i2.1264

Abstract

This study explores the limited use of contextual approaches in fostering creative thinking in trigonometry learning. This study aims to determine the difference in creative thinking test scores of vocational high school students before and after learning trigonometry in the context of futsal. This study used a quantitative method with a pre-experimental design and a one-group pretest-posttest form, with 27 tenth-grade students as the sample. The instrument used was a mathematical creative thinking ability test with futsal-contexted trigonometry material. Data analysis included descriptive statistics, the Shapiro-Wilk normality test, the Wilcoxon test, and N-Gain. Descriptive results showed that creative thinking ability was in the moderate range (63%) and increased from 41.81 to 77.26 between the pretest and posttest. The Wilcoxon test showed that Ho was rejected and Ha accepted, indicating a difference in creative thinking skills before and after the treatment (0.000 < 0.05), with an N-Gain score of 0.77. Therefore, it was concluded that the futsal sports context in trigonometry material yielded good results, with a noticeable difference before and after classroom learning.
The Relationship between Self-Directed Learning and Problem-Solving Ability in Trigonometry Iim Muhijah; Rika Mulyati Mustika Sari; Rafiq Zulkarnaen; Kiki Nia Sania Effendi
Journal of Mathematics Instruction, Social Research and Opinion Vol. 4 No. 4 (2025): December
Publisher : MASI Mandiri Edukasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58421/misro.v4i4.824

Abstract

Mathematical problem-solving abilities in trigonometry material remain a challenge for many students, partly because they lack self-directed learning skills to manage the learning process. This research aims to analyze the relationship between self-directed learning and students' mathematical problem-solving abilities in trigonometry material. The research approach is quantitative, using a correlational method. The research sample consists of 62 vocational high school students in Karawang Regency, selected through random sampling. The research instruments include a self-directed learning questionnaire and an essay test of problem-solving abilities. The questionnaire measures initiative, responsibility, self-regulation, and students' evaluative abilities in the learning process, while the problem-solving ability test assesses students' abilities to understand, plan, execute, and evaluate trigonometry problem solutions. Data analysis was conducted using the Pearson correlation test. The research results show a strong, significant positive relationship between self-directed learning and mathematical problem-solving abilities, with a correlation coefficient of r = 0.679 and a significance value of < 0.001. These findings indicate that increased self-directed learning tends to be followed by greater ability to solve mathematical problems.
The Influence of Self-Efficacy and Gender on Students' Mathematical Learning Outcomes on the Topic of Circle Equations Ibrahim Hasan; Rika Mulyati Mustika Sari; Kiki Nia Sania Effendi; Rafiq Zulkarnaen
Journal of Mathematics Instruction, Social Research and Opinion Vol. 4 No. 4 (2025): December
Publisher : MASI Mandiri Edukasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58421/misro.v4i4.830

Abstract

This quantitative study aimed to examine the simultaneous and partial effects of self-efficacy and gender on mathematics learning outcomes related to circle equations among high school students. Employing a multiple regression design, the research involved 139 twelfth-grade students from SMA Negeri 7 Tambun Selatan, selected via simple random sampling. Data were collected through a self-efficacy questionnaire analyzed using the Successive Interval Method and an essay-based test for learning outcomes. Multiple regression analysis, after fulfilling classical assumptions, revealed that self-efficacy and gender significantly influenced learning outcomes simultaneously (F = 1025, p < 0.00). Partially, self-efficacy emerged as a significant predictor, with a positive coefficient (β = 0.585, t = 5.969, p < 0.001), indicating that higher self-efficacy is associated with improved cognitive achievement. Conversely, gender showed no significant partial effect (p > 0.05). Additional correlation analysis indicated a stronger relationship between self-efficacy and learning outcomes in male students (  = 0.545) compared to female students (  = 0.348). Nonetheless, self-efficacy remained the primary explanatory factor for cognitive achievement in both groups. These findings underscore the dominant role of self-efficacy as the key determinant of success in learning circle equations, surpassing the influence of gender.
HUBUNGAN SELF-EFFICACY DENGAN KEMAMPUAN BERPIKIR KREATIF MATEMATIS SISWA SMK PADA MATERI TRIGONOMETRI Nopiyanti Dara Lestari; Rika Mulyati Mustika Sari; Rafiq Zulkarnaen; Indrie Noor Aini
EDU-MAT: Jurnal Pendidikan Matematika Vol 14, No 1 (2026)
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/edumat.v14i1.24471

Abstract

Kemampuan berpikir kreatif matematis merupakan salah satu keterampilan berpikir tingkat tinggi (HOTS), yang penting dikembangkan dalam pembelajaran abad ke-21. Namun, kemampuan tersebut masih tergolong rendah dan diduga berkaitan dengan faktor psikologis siswa, salah satunya self-efficacy. Penelitian ini bertujuan untuk mengetahui hubungan antara self-efficacy dengan kemampuan berpikir kreatif matematis siswa SMK materi trigonometri. Penelitian menggunakan penedekatan kuantitatif dengan desain korelasional. Populasi penelitian adalah 288 siswa kelas X SMK Negeri Batujaya Kabupaten Karawang tahun ajaran 2025/2026, dengan sampel sebanyak 167 siswa menggunakan rumus Slovin. Instrumen penelitian meliputi tes kemampuan berpikir kreatif matematis dan angket self-efficacy yang telah teruji validitas serta reliabilitasnya serta wawancara semi terstruktur. Analisis data menggunakan uji korelasi Product Moment Pearson. Hasil penelitian menunjukkan adanya hubungan positif yang sangat kuat antara self-efficacy dan kemampuan berpikir kreatif matematis siswa, dengan nilai koefisien korelasi ? = 0,854 dan signifikansi ? < 0,001. Hal ini menunjukkan bahwa semakin tinggi self-efficacy siswa, semakin tinggi pula kemampuan berpikir kreatif matematisnya.   Kata kunci: Self-efficacy, kemampuan berpikir kreatif matematis, korelasi, trigonometri Abstract: Mathematical creative thinking ability is one of the higher-order thinking skills (HOTS) that needs to be developed in 21st-century learning. However, this ability is still relatively low and is assumed to be related to students’ psychological factors, particularly self-efficacy. This study aims to determine the relationship between self-efficacy and vocational high school students’ mathematical creative thinking ability on trigonometry material. The research employed a quantitative approach with a correlational design. The population consisted of 288 tenth-grade students of SMK Negeri Batujaya, Karawang Regency, in the 2025/2026 academic year, with a sample of 167 students selected using the Slovin formula. The research instruments included a mathematical creative thinking test, a self-efficacy questionnaire that had met validity and reliability criteria, and semi-structured interviews. Data were analyzed using the Pearson Product-Moment correlation test. The results showed a very strong positive relationship between self-efficacy and students’ mathematical creative thinking ability, with a correlation coefficient of r = 0.854 and a significance level of p < 0.001. This indicates that higher self-efficacy is associated with higher mathematical creative thinking ability. Keywords: self-efficacy, mathematical creative thinking ability, correlation, trigonometry.
Co-Authors Abidah, Iffah Adinda Sahira Ardiyanti, Yusi Bambang Avip Barkah, Siti Chandra Zuliady Dadang Fakhruddin Dadang Fakhruddin Dadang Juandi Dewi Nur, Iyan Rosita Dori Lukman Hakim Effendi, Kiki Nia Sania Elna Mar'atussholihah Elna Mar’atussholihah firliani Ginda M.A.Siregar Haerudin Hanifah Nurus Sopiany Hanifah Sopiany Hendra Kartika, Hendra Ibrahim Hasan Iik Nurhikmayati Iim Muhijah Ika Yunitasari Indrie Noor Aini Irena Puji Luritawaty Iyan Rosita Dewi Nur Jarnawi Afgani Dahlan Juniantika, Muhammad Ikhsan Juniantika, Muhammad Ikhsan Karina Chintya Lestari Kiki Nia sania Effendi Krida Singgih Kuncoro Latifah Tazkiyatunnisa Lessa Roesdiana Mochammad Imron Awalludin Muhammad Ikhsan Juniantika Nanang Priatna Nenden Suciyati Sartika Nopiyanti Dara Lestari Nur, Iyan Rosita Dewi Nurtiana, Nadya Nurul Isnani Setyaningrum Rafiq Zulkarnaen Rahman, Ratu Firdausi Rahmat Iqbal Roesdiana, Lessa Saeful Hamzah, Karto Safitri, Ajeng Dwiyani Sahira, Adinda Saripudin Saripudin SENDI FAUZAN Sopiany, Hanifah Sopiyani, Hanifah Nurus Suheni, Eni Suryaningsih, Eka Irmas Thiara Ayu Sheila Yadav, Dharmendra Kumar Zulkarnaen, Rapiq Zulnaidi, Hutkemri