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All Journal Jurnal Pendidikan Matematika dan IPA Kreano, Jurnal Matematika Kreatif-Inovatif Pedagogia: Jurnal Pendidikan Suska Journal of Mathematics Education IRJE (Indonesian Research Journal in Education) Unnes Journal of Mathematics Education Research Southeast Asian Mathematics Education Journal Pasundan Journal of Mathematics Education : Jurnal Pendidikan Matematika International Journal of Didactic Mathematics in Distance Education
Tri Nopriana, Tri
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Agriculture, Biological Sciences & Forestry Humanities Chemistry Education Languange, Linguistic, Communication & Media Mathematics Physics Social Sciences Other

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Bahan Ajar Aljabar Linear Berbasis Kemampuan Pemahaman Matematis Dwi Rosita, Cita; Nopriana, Tri; Liliana Kusuma Dewi, Irmawati
Unnes Journal of Mathematics Education Research Vol 6 No 2 (2017): December 2017
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (553.977 KB)

Abstract

Penelitian ini secara khusus bertujuan untuk mendesain bahan ajar Aljabar Linear yang dapat memfasilitasi berkembangnya kemampuan pemahaman matematis mahasiswa. Metode Penelitian yang digunakan adalah Pengembangan (Research and Development) yang terdiri dari tiga tahap yaitu tahap pendahuluan, tahap pengembangan, dan tahap penyebaran. Agar diperoleh bahan ajar yang sesuai dengan harapan penelitian maka skema penelitian kali ini hanya sampai pada tahapan pengembangan. Pada tahapan pendahuluan dilakukan analisis profil mahasiswa meliputi analisis kemampuan awal matematis (KAM) mahasiswa dan motivasi belajar mahasiswa. Pada tahapan pengembangan dilakukan kegiatan validasi ahli dan uji praktikalitas terhadap bahan ajar. Hasil yang diperoleh pada tahap pengembangan adalah penilaian para ahli (validator) terhadap bahan ajar yang telah dirancang berada pada kategori valid dengan revisi kecil pada bagian soal-soal latihan. Hasil uji praktikalitas bahan ajar diperoleh persentase sebesar 87,81% dengan interpretasi sangat praktis. Sementara itu, hasil uji coba terbatas menunjukkan bahwa bahan ajar yang telah dikembangkan dapat menuntaskan kemampuan pemahaman matematis mahasiswa baik secara klasikal maupun individual. This research specifically aims to design a Linear Algebra courseware that can facilitate the development of students' mathematical understanding skills. Research Methods used are the Research and Development which consists of three stages are the preliminary stage, development stage, and the stage of dissemination. In order to obtain the material that is in accordance with the expectations of research, the research scheme this time only to the stage of development. In the preliminary stage, student profile analysis includes analysis of students' prior mathematical knowledge (PMK) and student achievement motivation. At the stage of development carried out expert validation activities and practicality test of courseware. The results showing that the development stage is the assessment of the experts (validator) that have been designed to be in a valid category with a small revision on the part of the exercise. The result of the experimental test of the courseware obtained the percentage of 87.81% with very practical interpretation. Meanwhile, the results of limited trials indicate that the courseware that have been developed to complete the skill of students' mathematical understanding both in classical and individual.
Self Efficacy Siswa: 7 Indikator Keyakinan Diri dan Tantangan dalam Pembelajaran Matematika SMP Rahmawati, Suci Rani; Nopriana, Tri
Suska Journal of mathematics Education Vol 10, No 2 (2024)
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/sjme.v10i2.32726

Abstract

Tingkat self efficacy siswa dapat mempengaruhi cara mereka menyelesaikan tugas, mengatasi tantangan, dan berpartisipasi dalam proses belajar. Penelitian ini bertujuan untuk menganalisis self efficacy siswa kelas VIII di salah satu SMP yang berada di Cirebon dalam pembelajaran matematika. Penelitian dilakukan dengan pendekatan deskriptif kuantitatif, dengan melibatkan sebanyak 32 siswa dari populasi keseluruhan siswa kelas VIII. Instrumen utama dalam penelitian ini adalah angket self efficacy sebanyak 20 pernyataan yang mencakup tujuh indikator self efficacy diantarnya; kemampuan mengatasi masalah, keyakinan akan keberhasilan diri, keberanian menghadapi tantangan, keberanian mengambil resiko, kesadaran akan kekuatan dan kelemahan diri, kemampuan berinteraksi dengan orang lain, dan ketangguhan atau tidak mudah menyerah. Hasil penelitian menunjukkan bahwa self efficacy siswa secara keseluruhan berada pada kategori tinggi. Secara khusus, siswa menunjukkan indikator self efficacy sangat tinggi dalam hal keyakinan akan keberhasilan. Siswa juga memiliki self efficacy yang tinggi dalam mengtasi masalah, keberanian mengambil resiko serta kesadaran akan kekuatan dan kelemahan diri. Temuan ini mengindikasikan bahwa siswa SMP Kelas VII memiliki keyakinan diri yang kuat akan keberhasilannya ditunjukkan dengan siswa mengetahui kekuatan dan kelemahannya serta mampu mengambil resiko. Hasil penelitian ini dapat membantu pendidik dan peneliti lainnya dalam mengembangkan desain pembelajaran yang mendukung self efficacy siswa yang sudah baik.
Investigating ontogenic and didactical obstacles faced by vocational high school students in solving counting rules problems Nopriana, Tri; Asnawati, Sri; Herman, Tatang; Martadiputra, Bambang Avip Priatna; Dejarlo, Jenisus O.
International Journal of Didactic Mathematics in Distance Education Vol. 1 No. 2 (2024): ijdmde
Publisher : Universitas Terbuka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33830/ijdmde.v1i2.9524

Abstract

Research on the ontogenic and didactical obstacles vocational high school students face in solving counting rule problems has been limited. Ontogenic obstacles involve students' readiness, while didactical obstacles concern the sequence and presentation of instructional materials. Therefore, teachers must consider both when developing effective materials. This research aims to describe the ontogenic and didactical obstacles experienced by vocational high school students in solving counting rule problems. The participants of this study were 24 grade XII students from a public vocational high school in Cirebon. Using a Didactical Design Research (DDR) approach, this qualitative study focuses on the prospective analysis stage, examining these obstacles. The research instrument included five diagnostic essay questions and interview guidelines. The results revealed that students encountered instrumental-type ontogenic obstacles, particularly in understanding factorial operations. Additionally, didactical obstacles arose from incomplete teaching materials and improper notation, which led to learning barriers. This research offers valuable insights for teachers and researchers in designing instructional materials, especially for counting rules in vocational schools.
Phenomenological Hermeneutic Study on the Epistemological Obstacles of High School Students in Solving Combinatorics Problems Nopriana, Tri; Asnawati, Sri; Kania, Nia
Southeast Asian Mathematics Education Journal Vol 15, No 1 (2025)
Publisher : SEAMEO Regional Centre for QITEP in Mathematics

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46517/seamej.v15i1.468

Abstract

This study employs a hermeneutic phenomenological approach to explore students' epistemological obstacles in solving permutation and combination problems, with the goal of supporting the development of more effective teaching materials. The research involved 24 12th-grade high school students (14 males and 10 females) and used qualitative methods. Data were collected through five diagnostic essay questions and semi-structured interviews to identify epistemological obstacles in combinatorics. Students’ written responses and interview transcripts were analyzed and interpreted to uncover the underlying obstacles. The findings revealed several epistemological obstacles: (1) students were unable to identify all possible answers from a given problem; (2) students could not differentiate between problems requiring the concept of permutation and those requiring the concept of combination; (3) students struggled to solve problems that differed from the example problems provided; and (4) challenges in formulating a complete solution when faced with multiple conditions, despite being able to calculate partial results. These insights suggest that teachers and future researchers should consider students' epistemological obstacles when designing instructional materials, particularly for topics in combinatorics such as permutations and combinations. Developing learning resources based on these findings may enhance conceptual understanding and problem-solving skills among students.
Model Group Investigation dan Kemampuan Komunikasi Matematik dalam Pembelajaran Matematika Siswa Kelas XI IPA SMA Negeri 2 Cirebon Nopriana, Tri
Pasundan Journal of Mathematics Education : Jurnal Pendidikan Matematika Vol. 2 No. 1 (2012): Pasundan Journal of Mathematics Education : Jurnal Pendidikan Matematika
Publisher : Program Magister Pendidikan Matematika, Pascasarjana, Universitas Pasundan in collaboration with Asosiasi Guru Matematika Indonesia (AGMI) and Indonesian Mathematics Educators' Society (IMES)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/pjme.v2i1.2451

Abstract

Tujuan penelitian ini adalah untuk membandingkan kemampuan komunikasi matematika siswa pada tingkat Sekolah Menengah Atas. Penelitian dilakukan di SMA Negeri 2 Cirebon dengan metode quasi eksperimen dengan melibatkan 62 Siswa Kelas XI sebagai sampel. Pemilihan sampel menggunakan cluster random sampling. Instrumen yang dugunakan dalam mengumpulkan data adalah tes essay. Hasil penelitian menyimpulkan bahwa: (1) Kemampuan komunikasi matematika siswa setelah diterapkan model pembelajaran kooperatif tipe Group Investigation lebih baik dari pada kemampuan komunikasi matematika siswa yang menggunakan pembelajaran konvensinal. (2) Rata-rata kemampuan komunikasi matematika siswa yang menggunakan pembelajaran kooperatif tipe Group Investigation lebih tinggi dari rata-rata kemampuan komunikasi matematika siswa yang menggunakan pembelajaran konvensional.
DEVELOPMENT OF AN E-MODULE CONTAINING ICARE (INSTRUCTION, CONNECTION, APPLICATION, REFLECTION, AND EXTENSION) IN THE TOPIC OF TRIANGLES FOR EIGHTH GRADE Nurfaojah, Ojah Siti; Wahyuni, Sulis; Dewi, Irmawati Liliana Kusuma; Nopriana, Tri
Jurnal Pendidikan Matematika dan IPA Vol 16, No 3 (2025): September 2025
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jpmipa.v16i3.95132

Abstract

The development of mathematics e-modules to support learning has been widely conducted; however, e-modules designed with ICARE components on the topic of triangles remain limited. This study aims to develop mathematics teaching materials in the form of an ICARE-based e-module for the topic of triangles for eighth-grade students. The research type used is development or Research and Development (R&D) employing the ADDIE development model. However, the implementation was limited to three stages: Analysis, Design, and Development. The subjects of this study were two mathematics teachers. The e-module was validated by content experts and design experts. Instruments used to collect data included interviews, validation questionnaires, and educator response questionnaires. The analysis stage results indicate that students require alternative digital teaching materials to support learning. In the design stage, an ICARE-approach mathematics e-module on triangles was developed to facilitate student understanding. The development stage included validation tests by content and design experts, yielding highly valid results. The e-module"™s content validity reached 91.35%, categorized as very valid, while its design validity reached 87.21%, also categorized as very valid. Additionally, a practicality test by educators yielded a result of 66.80%, categorized as sufficiently practical. Thus, this e-module is expected to serve as an alternative digital teaching material that effectively supports the mathematics learning process and acts as a self-learning medium for students, thereby increasing student motivation. It is also expected that future research will consider this e-module as an additional learning resource for teachers that can support differentiated instruction.
Mathematics Teachers' Understanding in Developing Learning Indicators in Preparing Lesson Plans: Pemahaman Guru Matematika dalam Mengembangkan Indikator Pembelajaran dalam Menyusun Rencana Pelaksanaan Pembelajaran (RPP) Nopriana, Tri; Dian Nopitasari; Dahlan, Jarnawi Afgani
Pedagogia : Jurnal Pendidikan Vol. 10 No. 1 (2021): February
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/pedagogia.v10i1.859

Abstract

Research on teachers' ability to prepare lesson plans has not shown good results, whereas there have been many studies on efforts to improve teachers in preparing lesson plans. Still, no research explicitly describes the ability of teachers to develop indicators. This research aims to describe the understanding of mathematics teachers in creating learning indicators. This research is quantitative research with a survey method. The sur- vey was conducted on 51 Mathematics Teachers in Cirebon City. The research instrument used was in the form of a questionnaire regarding the indicators of developing learning indicators. The results showed that (1) most teachers still did not understand the steps of developing learning indicators (2) teachers still had difficulty determining operational verbs (KKO) of knowledge, conducting processes, implementation, and evaluation, (3) there were still teachers who thought the affective and psychomotor aspects could not be assessed in mathematics, (4) most teachers have developed at least three indicators in a basic competency, while almost half of the sample assumes the characteristics of students and schools do not affect developing learning indicators.
Computational thinking Skills from the perspective of students’ self-confidence in mathematics learning Firmasari, Siska; Nopriana, Tri; Pujiana, Firda
Indonesian Research Journal in Education |IRJE| Vol. 9 No. 01 (2025): IRJE |Indonesian Research Journal in Education|
Publisher : Universitas Jambi, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/irje.v9i01.37228

Abstract

This research aimed to analyze computational thinking skills from the perspective of students' self-confidence in mathematics learning, employing a qualitative approach and a case study method. The subjects of this research consisted of thirty-five students from tenth grade, selected based on self-confidence—categorized as high, moderate, and low. Data collection techniques included a computational thinking skills test focused on systems of linear equations in two variables, a self-confidence questionnaire, and interviews. The findings reveal that students with high self-confidence demonstrated the ability to meet all indicators of computational thinking skills. In contrast, students with moderate self-confidence could only fulfill two indicators—decomposition and algorithmic thinking—indicating that they struggled with pattern recognition and abstraction. Meanwhile, students with low self-confidence exhibited limited computational thinking skills, with some meeting only the decomposition indicator and others failing to meet any expected indicators.
Implementation of Didactical Design on Circle Material at Junior High School Nopriana, Tri; Rosita, Cita Dwi; Halbi, Diana
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.v13i1.32620

Abstract

This study aimed to implement a didactic situation design to overcome learning obstacles in the circumference and area of the circle. The method used is qualitative research with Didactical Design Research which goes through the last two stages, namely metapedadidactic analysis and retrospective analysis. The instrument used is a didactic situation design prepared by Rosita, Maharani, Tonah Munfi (2020) and interview guidelines. Based on the implementation results, the didactic situation that has been designed has not been able to overcome students' learning obstacles fully. In addition, a new learning obstacle appears in the concept of the circumference of a circle. Not all students can measure the length of the curvature of a circle because there are inaccurate measurement results. In this study, the didactic design was revised regarding the circumference and area of a circle based on metapedadidactic and retrospective analysis.Penelitian ini bertujuan untuk mengimplementasikan rancangan situasi didaktis sebagai upaya mengatasi learning obstacle pada materi keliling dan luas lingkaran. Metode yang digunakan adalah penelitian kualitatif dengan Didactical Design Research yang melalui dua tahap terakhir yaitu analisis metapedadidaktik dan analisis retrospektif. Instrumen yang digunakan berupa rancangan situasi didaktis yang telah disusun oleh Rosita, Maharani, Tonah Munfi (2020) serta pedoman wawancara. Berdasarkan hasil implementasi, situasi didaktis yang telah dirancang belum sepenuhnya dapat mengatasi learning obstacle siswa. Selain itu, terdapat learning obstacle baru yang muncul pada konsep keliling lingkaran yaitu tidak semua siswa mampu mengukur panjang lengkungan lingkaran karena terdapat hasil pengukuran yang kurang akurat.Pada penelitian ini, dilakukan perbaikan kembali desain didaktis mengenai konsep keliling dan luas lingkaran yang disusun berdasarkan analisis metapedadidaktik dan retrospektif.
Co-Authors Bambang Avip Priatna Martadiputra cakrawala Cita Dwi Rosita Dejarlo, Jenisus O. Dewi, Irmawati Liliana Kusuma Dian Nopitasari Halbi, Diana Jarnawi Afgani Dahlan Liliana Kusuma Dewi, Irmawati Mohammad Dadan Sundawan, Mohammad Dadan Nia Kania Nurfaojah, Ojah Siti Pujiana, Firda Rahmawati, Suci Rani Siska Firmasari, Siska Sri Asnawati, Sri Tatang Herman, Tatang Tonah, Tonah Wahyuni, Sulis