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Mandalika Mathematics and Educations Journal
Published by Universitas Mataram
ISSN : 27158292     EISSN : 27151190     DOI : 10.29303/jm
Core Subject : Education,
Mathematics
Mandalika Mathematics and Education Journal adalah Jurnal Matematika dan Pendidikan Matematika yang dikelola oleh Program Studi S1 Pendidikan Matematika FKIP Universitas Mataram. Fokus dan ruang lingkup dari jurnal ini adalah artikel ilmiah baik berupa hasil penelitian, review artikel maupun kajian pustaka khusus bidang Matematika dan Pendidikan Matematika.
Arjuna Subject : Matematika - Matematika (Lain-Lain)
Articles 319 Documents
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Analisis Kemampuan Berpikir Kritis Matematis Siswa Berdasarkan Gender pada Materi Teorema Pythagoras di Kelas VIII SMP Negeri 1 Botupingge R. Pontoh, Nur Lillah; Pauweni, Khardiyawan A. Y.; Takaendengan, Bertu Rianto
Mandalika Mathematics and Educations Journal Vol 7 No 1 (2025): Edisi Maret
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jm.v7i1.8628

Abstract

Critical thinking is a reasoning proces aimed at concluding by first gathering clear data or information. This study aims to analyze the critical thinking skills or male and female students in the Pythagorean Theorem learning material in Class VIII A and Class VIII B at SMP Negeri 1 Botupingge. The study employed a qualitative method with a descriptive research design. The instruments used were tests and interviews. The findings show that in class VIII A, used for validation, empirical testing identified both valid and invalid test items, and the reliability test indicated a very high level of reliability. In class VIII B, where the actual study was conducted, the percentage of male students’ critical thinking skills was 8.33% (high), 75.00% (moderate), and 16.67% (low). Meanwhile, the percentage of famale students was 25.00% (high), 75.00% (moderate), and 0.00% (low).
Pengaruh Penggunaan Media Powerpoint Intetaktif dalam Pembelajaran Matematika terhadap Prestasi Belajar Siswa Kelas VIII SMPN 1 Gunungsari Tahun Ajaran 2024/2025 Lestari, Ayu; Sripatmi; Kurniawan, Eka; Sarjana, Ketut
Mandalika Mathematics and Educations Journal Vol 7 No 1 (2025): Edisi Maret
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jm.v7i1.8708

Abstract

This study aims to determine the effect of using interactive powerpoint media in mathematics learning on the academic achievement of eighth-grade students at SMPN 1 Gunungsari in the 2024/2025 academic year. This research is a quantitative study using a quasi-experimental method. The population in this study consists of eighth-grade students at SMPN 1 Gunungsari in the 2024/2025 academic year, totaling 295 students, comprising 140 male students and 156 female students, distributed across ten classes (VIII A to VIII J). The sample in this study includes class VIII G, consisting of 29 students as the control class, and class VIII J, consisting of 27 students as the experimental class, selected using cluster random sampling. Data collection techniques used in this study include observation, tests, and documentation. The data analysis techniques employed are descriptive and inferential statistics, including normality tests, homogeneity tests, t-tests, and effect size tests. Based on the t-test analysis, it was found that t_count > t_table (2.913 > 2.005) at a 5% significance level. This indicates a significant difference in academic achievement between the experimental and control groups, with the experimental group having a higher average score of 75,66 compared to the control group’s average score of 65,56. The effect size test yielded a value of d=0.78 indicating that the effect of using interactive powerpoint media falls into the medium category. Therefore, it can be concluded that the use of interactive PowerPoint media influences the mathematics learning achievement of eighth-grade students at SMPN 1 Gunungsari in the 2024/2025 academic year.
Analisis kemampuan pemecahan masalah matematika materi sistem persamaan linier dua variabel ditinjau dari gaya belajar siswa kelas VIII SMP Negeri 1 Aikmel Tahun Ajarn 2024/2025 Ardi, Arsista Ardi; Arjudin; Dwi Novitasari; Muhammad Turmuzi
Mandalika Mathematics and Educations Journal Vol 7 No 1 (2025): Edisi Maret
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jm.v7i1.8713

Abstract

This study aims to analyze mathematical problem-solving abilities on the topic of Systems of Linear Equations in Two Variables (SPLDV) from the perspective of learning styles among eighth-grade students at SMP Negeri 1 Aikmel in the 2024/2025 academic year. This study employs a descriptive qualitative approach. The subjects of the study consist of 6 students, selected using purposive sampling, comprising 2 students each with auditory, visual, and kinesthetic learning styles. Data collection instruments used in this study include learning style questionnaires, mathematical problem-solving tests, and interviews. Data were analyzed using descriptive qualitative analysis. The results of the study indicate that: 1) students with a visual learning style tend to solve problems presented in graphical form more quickly because they find it easier to understand concepts and ideas clearly when the problems are presented visually rather than in text; 2) students with an auditory learning style tend to experience difficulties and require more time to solve problems in graphical form because they are more accustomed to understanding information through listening rather than through visual representation; 3) students with kinesthetic and visual learning styles tend to have difficulty writing conclusions, as kinesthetic learners are more focused on the process of solving problems rather than formulating conclusions from the solutions obtained; 4) students with visual and auditory learning style are able to complete all four stages of Polya’s priblem-solving process, whereas students with kinestheticc learning style can only complete three out of four stages: understanding the problem, devising a plan, and carrying out the plan. Keywords: Mathematical Problem Solving, Learning Style, SPLDV
EKSPLORASI MODEL PEMBELAJARAN BERDIFERENSIASI DALAM MATEMATIKA Moh. Supratman; I M. Ardana; I G. Putu Suharta; I W. Puja Astawa
Mandalika Mathematics and Educations Journal Vol 7 No 1 (2025): Edisi Maret
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jm.v7i1.8719

Abstract

This study is a systematic literature review (SLR) study that explores the application and effectiveness of differentiated learning models in mathematics learning. Differentiated learning involves tailoring content, processes, products, and learning environments to meet students' individual needs, with the goal of improving students' concept understanding, problem-solving skills, creativity, motivation, and engagement. This study identifies various differentiation approaches used in mathematics learning, such as subject-based learning, the use of educational technology, and flexibility in evaluation. The results show that differentiated learning is effective in improving learning outcomes, but its implementation is faced with challenges such as time constraints, teacher workload, variations in student abilities, and lack of training. The proposed solutions include increasing teacher training, more flexible time allocation, and developing varied and inclusive resources. The review also provides practical steps for the application of differentiated learning in mathematics classrooms, and recommends further research that integrates differentiated learning with open-ended problem-solving to improve mathematical creative thinking.
Pengembangan Media Powerpoint Interaktif Untuk Meningkatkan Kemampuan Komunikasi Matematis Siswa Kelas VIII SMP Negeri 2 Terara Tahun Ajaran 2024/2025 Dinisa Putri, Baiq Elda; Azmi, Syahrul; Primajati, Gilang; Baidowi, Baidowi
Mandalika Mathematics and Educations Journal Vol 7 No 1 (2025): Edisi Maret
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jm.v7i1.8720

Abstract

This research aims to develop interactive powerpoint media based on the classpoint application that was feasible, practical and effective to improve the mathematical communication skills of class VIII students at SMP Negeri 2 Terara on the Pythagorean theorem material. This development research uses a 4D model, namely Define, Design, Development and Disseminate. Data in this research are obtained from the results of instrument validation by experts to measure the suitability of the media, the results of teacher and student response questionnaires to measure the practicality of the media, and the results of students' mathematical communication ability tests to measure the effectiveness of the media. The sample in the research are 28 students in class VIII D. Interactive powerpoint media is tested to be very feasible with a validation score of 0,86 and obtained a practicality percentage of 90% and 96.5% with a very practical category. The average student pretest and posttest scores are 70.75 and 88.32, the t-test results showing that there is  a difference in the average between the students' pretest and posttest results. The level of media effectiveness is categorized as very effective with an effect size score of 2.0001. Based on the research results, it can be concluded that the development of interactive powerpoint media is feasible, practical and effective for improving the mathematical communication skills of class VIII students at SMPN 2 Terara for the 2024/2025 academic year.
pengaruh Pengaruh Kemampuan Numerik dan Kemampuan Spasial Terhadap Kemampuan Menyelesaikan Soal Matematika Siswa Kelas IX SMP Negeri 4 Gerung Tahun Ajaran 2024/2025 Sartika, Luwy; Nurul Hikmah; Ulfa Lu’luilmaknun; Syahrul Azmi
Mandalika Mathematics and Educations Journal Vol 7 No 1 (2025): Edisi Maret
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jm.v7i1.8734

Abstract

This research is motivated by students’ difficulties in solving mathematical problems, which are caused by their low numerical and spatial abilities. These difficulties are caused by the low numerical and spatial abilities. Numerical ability is related to understanding and performing basic arithmetic operations, while spatial ability involves understanding relationship, visualization, and spatial orientation. Therefore, the aim of this study is to determine the influence of numerical and spatial abilities on the mathematical problem solving skills of IX grade students at SMP Negeri 4 Gerung in the 2024/2025 academic year. This research is a quantitative study using the ex post facto method. The population consists of all IX grade students, totaling 173, with a purposive sampling technique used to select 36 students as the sample. Data collection was conducted through numerical ability test, spatial ability test, and mathematics problem solving test. D ata analysis techniques included descriptive statistical analysis and inferential statistical analysis. The results of the study indicate a significant influences of numerical and spatial abilities on mathematical problem solving skill. Simultaneously, these two variables contributed 64,7% to students’ problem solving abilities. Thus, improving numerical and spatial abilities can be an effective strategy for enhancing students’ mathematical problem solving skills.
Pengaruh model pembelajaran kooperatif tipe team games tournament (TGT) terhadap kemampuan komunikasi matematis kelas VIII SMPN Masbagik Tahun Ajaran 2024/2025 Hijriati, Awwalus sanatil; Arjudin; Wulandari, Nourma Pramestie; Baidowi
Mandalika Mathematics and Educations Journal Vol 7 No 1 (2025): Edisi Maret
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jm.v7i1.8738

Abstract

This study aims to determine the effect of the Team Game Tournament (TGT) type cooperative learning model on the mathematical communication skills of 8th-grade students at SMPN 6 Masbagik. The research employed a quantitative approach using a true experimental method with a posttest only control group design. The population consisted of all 8th-grade students at SMPN 6 Masbagik in the 2024/2025 academic year, totaling 76 students. The sample was selected using a cluster random sampling technique, with two classes selected from three, namely classes VIIIA and VIIIB, each consisting of 26 students. The two classes received different treatments: class VIIIA as the experimental class using the TGT learning model, and class VIIIB as the control class using conventional learning. Data were collected through a mathematical communication skills test and observation. Data analysis included normality and homogeneity tests, hypothesis testing using the Independent Sample t-Test, and an effect size test. The results showed that the average posttest score in the experimental class was 69.5, while the control class scored 55. The t-test result showed a t-count of 4.434 > t-table 2.008, indicating a significant difference. The effect size result of 1.09 falls into the large category. In conclusion, the TGT model significantly affects students' mathematical communication skills.
Pengaruh Kemampuan Spasial Dan Komunikasi Matematis Terhadap Hasil Belajar Matematika Siswa Eka Ayu Rasta, Ni Putu Virgi; Hikmah, Nurul; Salsabila, Nilza Humaira; Prayitno, Sudi
Mandalika Mathematics and Educations Journal Vol 7 No 1 (2025): Edisi Maret
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jm.v7i1.8746

Abstract

The purpose of this study was to determine the effect of spatial intelligence and mathematical communication on the mathematics learning outcomes of class IX students of SMPN 5 Mataram in the 2024/2025 Academic Year. This type of research is quantitative with the ex post facto method. The population in this study were all class IX students of SMPN 5 Mataram in the 2024/2025 academic year with a total of 249 students. The sampling technique used probability sampling so that 1 class was selected, namely class IX B with a total of 31 students. The method of data collection was through giving tests of spatial ability, mathematical communication and mathematics learning outcomes with the material of similarity and congruence, surface area and volume of various curved and flat sided geometric shapes. The data analysis technique used in this study was descriptive statistical analysis and inferential statistical analysis. Based on the results of the inferential statistical analysis calculation, the t count value> t table was obtained, namely 6.238> 2.045 so that there was an effect of spatial ability on mathematics learning outcomes. The calculated t value > t table is 2.525 > 2.045 so that there is an influence of mathematical communication on mathematics learning outcomes. The Rxy (R) value is 0.836, sig. value 0.000 < 0.05 and 32.446 > 3.33. There is also an influence of variables X1 and X2 simultaneously on variable Y of 69.9%, which means that there is a positive influence between spatial ability and mathematical communication on students' mathematics learning outcomes with a strong relationship level. So, it can be concluded that there is an influence of spatial ability and mathematical communication on the mathematics learning outcomes of grade IX students of SMPN 5 Mataram in the 2024/2025 academic year.
Efektivitas Efektivitas Media Pembelajaran Augmented Reality Materi Bangun Ruang Sisi Datar di SMPN 1 Gunungsari Hasanah, Wirda; Harry Soeprianto; Baidowi; sripatmi
Mandalika Mathematics and Educations Journal Vol 7 No 1 (2025): Edisi Maret
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jm.v7i1.8773

Abstract

This study aims to determine the effectiveness of Augmented Reality (AR)-based learning media on students' mathematics learning outcomes of flat-sided space building material. This research uses a quasi-experiment method with a non-equivalent control group design. The subjects of this study were VII grade students of SMP Negeri 1 Gunungsari as many as two classes, namely the experimental class and the control class. Where the experimental class is given Augmented Reality-based learning media while the control class is given website-based learning media. This study was conducted for 5 meetings, starting with giving a pretest, followed by learning by implementing learning media for 3 meetings in each class and giving a questionnaire of learning interest for the experimental class. The last meeting was held posttest to determine student learning outcomes. Data analysis used independent sample t-test and N-Gain Mean analysis. The results showed that AR media was significantly effective in improving students' math learning outcomes (P < 0.005), with the N-Gain category of the experimental class classified as high and effective, while the control class was categorized as less effective. In addition, the use of AR media also increases students' interest in learning, with a very good category.
Analisis Kesalahan Mahasiswa Pendidikan Matematika Dalam Menyelesaikan Soal SUBGRUP Berdasarkan Teori Newman Samosir, Martha Indah; Sitorus, Grace Elicia; Sibarani, Khoirunnisa; Manurung, Sri Lestari
Mandalika Mathematics and Educations Journal Vol 7 No 1 (2025): Edisi Maret
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jm.v7i1.8788

Abstract

This research aims to examine the types of errors students make when solving problems using Newman's procedure. A qualitative descriptive approach was employed, involving 14 students selected through purposive sampling. Data were collected through observations, written tests, and documentation, then analyzed using Newman's error analysis framework. The data analysis techniques include data reduction, data presentation, and conclusion drawing. The findings indicate that reading errors were the least common (14.28%), while process skills errors occurred most frequently (42.85%). Other types of errors included comprehension errors (21.42%), transformation errors (28.57%), and encoding errors (35.71%). These results suggest that many students struggle with processing information and systematically applying problem-solving skills. Therefore, instructional strategies should focus on strengthening conceptual understanding and providing more practice in translating problems into mathematical representations.

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