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Delta: Jurnal Ilmiah Pendidikan Matematika
Published by Universitas Pekalongan
ISSN : 23033983     EISSN : 25483994     DOI : -
Core Subject : Education,
Education Mathematics
Delta Jurnal Ilmiah Pendidikan Matematika menyajikan informasi mutakhir hasil kajian dan penelitian bidang matematika dan pendidikan. Lingkup matematika meliputi statistik, aljabar, geometri, analisis, komputer, terapan. Sedangkan lingkup pendidikan meliputi pembelajaran matematika, media pembelajaran matematika, hasil pembelajaran matematika, matematika sekolah.
Arjuna Subject : -
Articles 262 Documents
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Eksplorasi Ethnomatematika dan Nilai Pendidikan Karakter Pada Ornamen Masjid Gedhe Kauman Khusnul, Eva; Arfinanti, Nurul
Delta: Jurnal Ilmiah Pendidikan Matematika Vol. 13 No. 1 (2025): DELTA : JURNAL ILMIAH PENDIDIKAN MATEMATIKA
Publisher : Universitas Pekalongan

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Abstract

Cultural mathematics is an approach to designing mathematics that is relevant and closely related to cultural communities. Learning that focuses on cultural aspects becomes more interesting and enjoyable due to socio-cultural constructions, where mathematics has been integrated in human history and activities. This approach to learning that combines math and culture is known as ethnomathematics. One of the cultural and historical places is the Gedhe Kauman Mosque in Yogyakarta. This research aims to explore mathematical concepts based on the ornaments in the Kauman Gedhe Mosque and the value of character education for students. This research is qualitative research using ethnographic approach. Data were collected through interviews, field notes, observations, literature review, and documentation. Based on the results of the study, it was found that the concepts of mathematics in the Gedhe Kauman Mosque building in the form of flat geometry, geometric transformation, and character education values. This can be found in the ornaments of the gate, gate, front door of the mosque, side foundation of the foyer building, foundation of the main building, fort, main pillar of the foyer building, and the main door. Then character values include selflessness, hard work, responsibility, fortitude and wisdom, leader, and confidence.
Persepsi Distance Learning Ditinjau Dari Motivasi Belajar Mahasiswa Hikayat, Chairil; Latif, Ikhsan Abdul; Jana, Padrul
Delta: Jurnal Ilmiah Pendidikan Matematika Vol. 13 No. 1 (2025): DELTA : JURNAL ILMIAH PENDIDIKAN MATEMATIKA
Publisher : Universitas Pekalongan

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This research is motivated by the emergence of the transition to an increasingly massive distance learning process in Indonesia since the emergence of COVID-19 in Indonesia. The study aims to look at student perceptions of the distance learning process on student learning motivation. The design used in the research uses a type of quantitative research with a descriptive approach, the data collection process uses a questionnaire taken through Google Forms on active students of the ITBMP actuarial and digital business study program using descriptive data analysis. The data obtained is processed using the Likert method. The results of the study found from 11 statements that contained learning motivation indicators show that learning motivation is related to the process and methods in the learning process, the results of the questionnaire from six indicators obtained 16% got a positive response while 84% got a negative response. From the results of the research conducted by researchers, the results reveal that students have a low level of motivation towards distance learning.
Dampak React Berbantuan E-modul Terhadap Kemampuan Berpikir Reflektif Dan Kemampuan Numerik Sarum, Lia; Farida; Andriani, Siska
Delta: Jurnal Ilmiah Pendidikan Matematika Vol. 13 No. 1 (2025): DELTA : JURNAL ILMIAH PENDIDIKAN MATEMATIKA
Publisher : Universitas Pekalongan

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Abstract

Reflective thinking ability is the ability to make connections between new information and previous information to solve problems by drawing conclusions.  Meanwhile, numerical ability is the ability to calculate. Both are very important for students in studying mathematics. Based on the results of pre-research test instruments conducted in class X SMA Negeri 1 Sukau West Lampung, data obtained that reflective thinking ability and numerical ability are still relatively low. This is due to the choice of learning strategies which are still monotonous. Therefore, researchers are interested in implementing the REACT (Relating, Experiencing, Applying, Cooperative, Transferring) Learning Strategy Assisted by E-Modules on Students' Reflective Thinking and Numerical Abilities. The population in this study were all class X students at SMA Negeri 1 Sukau, while the samples were students from classes X C, X D, and X F. Class X C is experimental class 1, class X D is experimental class 2, and class X F is the control class. This research uses a quantitative approach in this research using Quasi Experiment Design. The sampling technique is Cluster Random Sampling. In this research, the data collection techniques are observation, documentation and tests. The data analysis used was Multivariate Analysis of Variance (MANOVA) with a significance level of 5%. Based on the results of MANOVA research, it shows that the REACT (Relating, Experiencing, Applying, Cooperative, Transferring) learning strategy assisted by e-modules has an impact on students' reflective thinking abilities and numerical abilities.
Analisis Prakseologi Terhadap Soal Limit Pada Materi Geometri: Kasus Membuat Dan Membuktikan Dugaan Aryuna, Dyah Ratri; Sujatmiko, Ponco
Delta: Jurnal Ilmiah Pendidikan Matematika Vol. 13 No. 1 (2025): DELTA : JURNAL ILMIAH PENDIDIKAN MATEMATIKA
Publisher : Universitas Pekalongan

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Abstract

The experience of making and proving mathematical conjectures is valuable for students. The element of doubt in the conjecture gives students access to reasoning. All Calculus textbooks discuss limits, but most practice problems on the subject of limits are not specifically made as practice problems for making and proving conjectures. This study aims to describe problems on the subject of limits that can be used as practice questions to make and prove conjectures. The object of this research is the questions on the subject of limits related to geometry material in the book Calculus, 7th edition by James Stewart. This research method is a content analysis based on the praxeology model which consists of four elements of analysis, namely tasks, techniques, technology, and theory. The results show that the problems can be identified as exercises in making and proving conjectures, the steps in making and proving conjectures can be used to solve the problem, justification can be done to apply the steps in making and proving conjectures, and there is a theory used in justifying the steps in making and proving conjectures.
Pengembangan Game Edukasi Matematika Untuk Meningkatkan Kemampuan Berpikir Komputasional Siswa Kelas VII Yudi Hartawan, I Gusti Nyoman; Swarmantara, I Putu Adhitya; Suweken, Gede
Delta: Jurnal Ilmiah Pendidikan Matematika Vol. 13 No. 2 (2025): DELTA : JURNAL ILMIAH PENDIDIKAN MATEMATIKA
Publisher : Universitas Pekalongan

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Abstract

This study aims to develop a mathematics educational game to enhance the computational thinking skills of seventh-grade students in relation to data and diagram materials. The development of the educational game utilizes the ADDIE model, which was developed with the assistance of Construct 3 software. The validity of the material and media was evaluated by experts using the LORI questionnaire. Practicality was assessed through the User Experience Questionnaire (UEQ). Effectiveness was measured by calculating the average N-Gain score. The results of the material validity test showed a validity percentage of 95% with a feasible criterion. The media expert assessment obtained a validity percentage of 95% with a feasible criterion. The results of a limited trial on 44 students and one teacher showed that the responses of teachers and students on the aspects of attractiveness, accuracy, stimulation, and novelty were included in the superior criteria, while the aspects of clarity and efficiency were included in the good criteria. Then, the results of the educational game obtained an average N-Gain score of 0.71, which falls within a high category. Thus, the developed mathematics educational game is declared valid, feasible, practical, and effective. This mathematics educational game can improve students' computational thinking skills and create a fun learning environment.
Pengembangan Media Pembelajaran Interaktif Berbasis Website Untuk Meningkatkan Keterampilan Penalaran Matematis Nurimani; Zaman, Nurul; Warti , Erlis
Delta: Jurnal Ilmiah Pendidikan Matematika Vol. 13 No. 2 (2025): DELTA : JURNAL ILMIAH PENDIDIKAN MATEMATIKA
Publisher : Universitas Pekalongan

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Students often struggle to understand trigonometry due to its abstract nature and the need for strong visualization skills. This study aims to develop a web-based interactive learning media on trigonometry to enhance students’ mathematical reasoning ability in Grade X at Madrasah Aliyah Nurul Huda. The research employed the ADDIE development model, consisting of analysis, design, development, implementation, and evaluation stages. Validation results indicated that the developed media is highly feasible, with a score of 97% (very feasible) from subject matter and language experts, and 84% (feasible) from media experts. The product features concise content, interactive simulations for better visualization, evaluation exercises, and wordwall-based games accessible via smartphones or computers. Effectiveness tests showed an improvement in students’ reasoning skills with an average N-gain of 0.41 in small-scale trials and 0.54 in field trials (moderate category), along with a significant difference between pre-test and post-test scores (sig. 0.001 < 0.05). The findings imply that web-based interactive media can serve as an effective alternative to improve the quality of mathematics learning, especially in trigonometry
Pengembangan Instrumen Tes Pemikiran Statistik Siswa Yang Berorientasi Pada Kerangka Penilaian PISA Ulfah, Mediana Tri Maria; Nurhasanah, Siti; Andriani, Nabila; Salsabilla, Aulia; Nuary, Rusdi Hamdany
Delta: Jurnal Ilmiah Pendidikan Matematika Vol. 13 No. 2 (2025): DELTA : JURNAL ILMIAH PENDIDIKAN MATEMATIKA
Publisher : Universitas Pekalongan

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This study aims to produce a statistical thinking test instrument that is valid, reliable, and feasible to use for SMK Permata 1 & 2 Bogor students. The instrument was developed through the ADDIE model involving the stages of analysis, design, development, implementation, and evaluation. This instrument is declared valid, reliable, and has adequate variations in difficulty levels and discrimination power. All test items are proven valid, with the r count value greater than r_table indicating that this instrument is able to measure what should be measured. The reliability of the instrument is also high in the first school with a coefficient of 0.774 and the second school with a coefficient value of 0.753, the average of both schools with a coefficient of 0.762, indicating measurement consistency. The level of difficulty in both schools shows that the questions vary, with most questions classified as difficult and one question classified as easy. The discrimination power of the questions in both schools is positive, indicating that each question is able to distinguish students' abilities well. Overall, this instrument is effective and feasible to use to measure students' statistical thinking abilities.
Pola Pikir Siswa Dalam Memecahkan Soal Geometri Berkaitan Dengan Kemampuan Ruang Puspitasari, Andini; Putra, Adhitya Pratama; Istiani, Dede; Nuriza, Rafa Dian; Ma’ruf, Abdul Hakim
Delta: Jurnal Ilmiah Pendidikan Matematika Vol. 13 No. 2 (2025): DELTA : JURNAL ILMIAH PENDIDIKAN MATEMATIKA
Publisher : Universitas Pekalongan

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This research aims to examine the mindset of students in solving geometry problems from the perspective of spatial ability. This type of research is descriptive qualitative research. The study is conducted to explore and elaborate on the thought processes of students when solving geometry problems in relation to their spatial abilities. The subjects of this research are twelfth-grade students at Perguruan Nasional Senior High School for the 2024/2025 academic year. The research instrument consists of four validated essay questions. Data collection techniques used include tests, interviews, and documentation. The results of the study indicate that subjects with high ability in solving three-dimensional problems have good visualization skills, can formulate problems, and can independently solve complex geometry problems. Students with moderate ability can use diagrams to solve problems, understand basic concepts, and solve questions well, except in the area of pattern recognition. Meanwhile, students with low ability face difficulties in nearly all aspects of testing, particularly in conceptualization, problem-solving, and pattern recognition. Keywords: Geometry problems, mindset, spatial ability
Implementasi Model Problem Based Learning (PBL) Untuk Meningkatkan Pemahaman Konsep Matematis Aprian, Reinaldi; Aulia, Hilyatul; Fauziah, Nazwa Rifa; Lestari, Amanah Puji; Budiyanto, Aris
Delta: Jurnal Ilmiah Pendidikan Matematika Vol. 13 No. 2 (2025): DELTA : JURNAL ILMIAH PENDIDIKAN MATEMATIKA
Publisher : Universitas Pekalongan

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Abstract

Understanding mathematical concepts is an important foundation for students in learning further material. However, many students still have difficulty with the concept of integers.This study aims to improve students' mathematical conceptual understanding of integers through the application of the Problem-Based Learning (PBL) model. The research was conducted at MTs Nurul Huda Depok with 27 seventh-grade students as participants. The method employed was Classroom Action Research (CAR), which consisted of two cycles, each comprising three meetings. The research instruments included a conceptual understanding test, observation sheets for teacher and student activities, interviews, and field notes. The results showed an improvement in students' mathematical conceptual understanding after the implementation of the PBL model. Initially, the average student score was 61%, indicating a low level of mastery. After the first cycle, the average score increased, although it had not yet met the success indicator. In the second cycle, however, the average score rose significantly, achieving over 80% classical mastery in line with the established success criteria. Thus, it can be concluded that the implementation of the Problem-Based Learning (PBL) model is effective in enhancing students' mathematical conceptual understanding of integers in the seventh grade at MTs Nurul Huda Depok Keywords: Classroom action research, conceptual understanding, problem based learning
The Use of Fraction Tiles as Manipulative Media in Fraction Learning to Improve Algebraic Thinking Skills of Fourth Grade Elementary School Students Putri Indah Sari, Cut; Salma Amira Miftahul Jannah; Talitha Lillian Harvani Santoso; Manggali Revalitanaya; Elsa Nurmala Sari; Evi Faujiah
Delta: Jurnal Ilmiah Pendidikan Matematika Vol. 13 No. 2 (2025): DELTA : JURNAL ILMIAH PENDIDIKAN MATEMATIKA
Publisher : Universitas Pekalongan

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Algebraic thinking is a fundamental mathematical ability that supports students’ understanding of relationships, patterns, and structures, particularly in learning fractions at the elementary school level. This study aimed to examine the effectiveness of using Fraction Tiles as manipulative media in fraction learning to enhance fourth-grade students’ algebraic thinking skills. A pre-experimental method with a one-group pretest–posttest design was employed involving 30 elementary school students. The learning activities emphasized concrete manipulation, visual representation, pattern exploration, and symbolic expression of fraction relationships using Fraction Tiles. Students’ algebraic thinking abilities were assessed across four indicators: identifying equivalence and relationships among fractions, representing fractions in multiple forms, drawing simple generalizations from fraction patterns, and using mathematical symbols to express relationships. Data were analyzed using descriptive statistics and a paired-samples t-test. The results revealed a substantial improvement in students’ algebraic thinking, as indicated by higher mean posttest scores compared to pretest scores. The paired-samples t-test showed a statistically significant difference (p < 0.001), accompanied by a very large effect size (Cohen’s d = −48.0), indicating strong practical effectiveness. These findings suggest that the use of Fraction Tiles is highly effective in fostering algebraic thinking and provides a meaningful instructional approach for fraction learning in elementary education.

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