Jurnal Penalaran dan Riset Matematika

ANALISIS KEMAMPUAN SISWA MENYELESAIKAN MASALAH MATEMATIS PADA KONSEP BARISAN GEOMETRI

Arma Wangsa — 2025-04-30

Indonesian students' performance still tends to be low in solving mathematical problems. In order to explore this issue, further studies are needed to determine the ability of students to solve mathematical problems in various mathematical materials. Therefore, this study aims to describe students' mathematical problem solving ability on geometric sequence material. Descriptive qualitative method was used to describe three research subjects (students of SMAN 6 Bombana) who each represented high, medium, and low ability levels. Tests and interviews were given to collect data which were then analyzed to find out how students' work and errors in solving mathematical problems. The results showed that based on Polya's problem solving indicators, subjects with high and medium ability could solve the problem well, although subjects with medium ability needed two attempts (changing the solution plan) to get the correct answer. Meanwhile, subjects in the low category could not solve the mathematical problems presented in three attempts. In addition, two student errors were found in the solution process, namely: 1) incorrectly using the concept; and 2) incorrectly determining the ratio of the sequence. This study also found a positive participation of adversity quotient as a good mentality for students in solving mathematical problems.

ANALISIS PEMECAHAN MASALAH MATEMATIS DITINJAU DARI GAYA BELAJAR SISWA PADA SPLDV

Nurul Mutmainnah Satriana — 2025-04-30

This study aims to determine the effect of using Block dienes media on mathematics learning outcomes in grade I students of UPT SPF SD Inpres Pa'Baeng-Baeng 1 and to analyze learning outcomes based on students' learning styles. The method used is a quasi-experimental design with a sample of 50 students, consisting of an experimental class (n = 25) and a control class (n = 25), which were taken through a saturated sampling technique. The instruments used were essay tests and observation sheets, with data analysis through descriptive statistics, normality tests, homogeneity, hypothesis tests, and N-Gain tests. The results showed that the experimental class obtained a significant increase in learning outcomes, with a distribution of 52% in the high category and 36% very high, and an average N-Gain of 0.77 (high category). Based on learning styles, students with a visual learning style showed the highest average score increase compared to auditory and kinesthetic. As many as 86.67% of students showed activeness in learning, and 87% gave a positive response to the use of media. Hypothesis testing shows that H₀ is rejected and H₁ is accepted, which means that there is a significant influence of the use of Block dienes media on students' mathematics learning outcomes, especially for students with a visual learning style

STUDI ETNOMATEMATIKA PADA TRADISI LOKAL SEBAGAI KONTEKS PEMBELAJARAN MATEMATIKA

Herwandi Sape — 2025-04-30

This study aims to explore the mathematical elements embedded in the local traditions of the Maros Regency community, South Sulawesi, and analyze how these elements can be integrated into mathematics learning at the senior high school level. A descriptive qualitative approach was employed, utilizing semi-structured interviews with teachers, students, and community figures, along with direct observations of local cultural phenomena. The findings reveal that cultural practices such as traditional weaving patterns, measurement systems in vernacular architecture, and traditional fishing navigation involve mathematical concepts such as symmetry, patterns, ratios, coordinate systems, and estimation. Interviews showed that both teachers and students responded positively to the ethnomathematics approach, although its implementation remains limited due to a lack of training and culturally relevant teaching materials. Meanwhile, community elders served as vital knowledge holders in bridging the understanding between culture and mathematical concepts. These findings emphasize the importance of integrating local culture into education to enhance relevance, conceptual understanding, and to foster students’ cultural identity and pride. The study recommends the development of a structured and sustainable contextual learning model based on local cultural heritage

RELEVANSI KEMAMPUAN PRASYARAT DALAM PENGUASAAN KONSEP MAHASISWA

Eka Widyawati — 2025-04-30

The mathematics material that has been taught to students will be a prerequisite for the next material. So if the previous material has not been fully mastered by students, it will affect the mastery of concepts in the next material. In the Introduction to Basic Mathematics course presented in semester I in the mathematics education department, it contains basic materials such as sets, functions, and logic that have been studied in high school. So the prerequisite material that must be mastered by students is the material that has been obtained in high school. What is needed in learning mathematics is to understand the concepts in a structured manner starting from basic concepts to moving on to more advanced material. This study aims to determine the relevance of prerequisite abilities to students' mastery of concepts. The research method used is ex post facto. The subjects of this study were 30 first semester students at Borneo Tarakan University. The instruments used were prerequisite ability tests and concept mastery tests in the Introduction to Basic Mathematics course. The analysis used was Pearson correlation test data analysis using SPSS 30 for windows. Based on the results of the analysis, a correlation coefficient value of 0.796 was obtained so that there was a relationship and significance between the two variables, where the relationship between the two variables was in a strong relationship

PENGARUH MODEL PEMBELAJARAN GUIDED DISCOVERY LEARNING TERHADAP PENINGKATAN KEMAMPUAN HOTS MATEMATIS SISWA

Nessy Pattimukay — 2025-04-30

The purpose of this study was to determine the effect of the Guided Discovery Learning (GDL) learning model on improving students' Higher Order Thinking Skills (HOTS) abilities. The method used is quantitative descriptive with a Quasi-experimental approach with a pretest-posttest experimental design type. The study involved 25 fifth grade students of SD Teladan Ambon as samples. The results showed that there was an effect of the GDL learning model on improving students' HOTS abilities. The increase in HOTS abilities increased in the high category with an N-gain value of 0.8 for 1 student, a medium category of 0.56 for 19 students, and a low category of 0.20 for 5 students. The increase was due to the effective use of the GDL model, where this model trains students' critical thinking and problem-solving skills related to flat shapes. Students can also analyze, evaluate, and create or create about flat shapes well.

SELF EFFICACY MAHASISWA PENDIDIKAN MATEMATIKA DALAM MEMECAHKAN MASALAH GEOMETRI

Setia Widia Rahayu — 2025-04-30

This study aims to describe the self-efficacy of mathematics education students in solving geometry problems. This study is a descriptive qualitative study with research subjects, namely one student with a high self-efficacy classification and one student with a low self-efficacy classification. The instruments used in this study consisted of a self-efficacy questionnaire, problem-solving ability test, interview guidelines, and documentation that had been adjusted to Polya's self-efficacy criteria in problem solving. Based on the results of the study, it was obtained that students' self-efficacy in solving geometry problems met all stages of Polya's problem solving, namely: (1) understanding the problem; (2) making a solution plan; (3) implementing the solution plan; and (4) looking back. In practice, masculine subjects have high confidence in their ability to solve mathematics problems.

PENGARUH MATA KULIAH PENGANTAR KEWIRAUSAHAAN DAN KEWIRAUSAHAAN TERHADAP MINAT BERWIRAUSAHA MAHAHASISWA PENDIDIKAN MATEMATIKA

Hariaty Hamid — 2025-04-30

This study aims to determine the influence of the Introduction to Entrepreneurship and Entrepreneurship courses on students’ entrepreneurial interest at Universitas Borneo Tarakan. This is a quantitative research using a survey method and multiple linear regression analysis. The sample consisted of 91 students mathematics educations. Data were collected through an entrepreneurial interest questionnaire and students' course grades. The results showed that both courses significantly influenced entrepreneurial interest, both partially and simultaneously. The regression model met all classical assumptions and explained 30.9% of the variation in entrepreneurial interest. These findings emphasize the importance of strengthening entrepreneurship-related courses to foster entrepreneurial motivation among students.

DESKRIPSI KONSEP PERKALIAN SEBAGAI PENJUMLAHAN BERULANG

Elieser Kulimbang — 2025-04-30

This study aims to examine the understanding of multiplication as repeated addition among fifth-grade elementary school students in solving multiplication problems. This research is a qualitative descriptive study, as the researcher seeks to describe how students solve problems related to the concept of multiplication operations. The subjects of this study were three fifth-grade students from State Elementary School 2 Abepura, Jayapura City, selected to represent different types or groups of problem-solving approaches related to multiplication operations. The subjects were chosen using purposive sampling, which involves selecting participants based on specific criteria or purposes. The research instruments consisted of a test sheet containing essay questions on multiplication and a flexible interview guide. Data were analyzed through three stages: data reduction, data presentation, and conclusion drawing. The results showed that all three subjects did not understand the concept of multiplication as repeated addition; instead, they relied solely on memorizing multiplication facts.

PENGEMBANGAN VIDEO PEMBELAJARAN BERBASIS ANIMASI PADA MATERI ARITMATIKA SOSIAL SISWA SMP

Alfian Mucti — 2025-04-30

This study aims to develop instructional media in the form of animated videos for the topic of Social Arithmetic in seventh-grade students at SMPN 4 Tarakan. The research was motivated by students’ low engagement and understanding in online learning during the pandemic, particularly regarding abstract contexts in Social Arithmetic. The method used is Research and Development (R&D), adopting the simplified Borg & Gall model up to the operational product revision stage. The video product was developed using Plotagon and Edpuzzle software and validated by experts in content, media, and instructional design. Validation results showed high feasibility percentages: 77.94% (content), 89.28% (media), and 92.50% (instructional design). Field testing on students also indicated the video was highly feasible, both in preliminary testing (90.97%) and operational field testing (89.97%). This study concludes that the developed animated video is highly appropriate as an alternative learning medium to improve the quality of mathematics instruction.

PENGARUH PBL TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA DI ERA KURIKULUM MERDEKA

Herwandi Sape — 2025-04-30

This study aims to analyze the effect of the Problem Based Learning (PBL) model on high school students' mathematical problem-solving abilities within the context of the Merdeka Curriculum implementation. The research employed a quantitative approach using a quasi-experimental method with a Non-Equivalent Control Group Design. The subjects were two eleventh-grade classes at SMA Negeri 3 Maros, assigned as the experimental and control groups, selected through purposive sampling. The instrument used was a written pre-test and post-test based on problem-solving indicators developed by George Polya. Data were analyzed using both descriptive and inferential statistics, including normality testing (Shapiro-Wilk), homogeneity of variance testing (Levene’s Test), independent sample t-test, paired sample t-test, and gain score calculation using Hake’s normalized gain formula. The results indicated a significant difference between the experimental and control groups, with a greater improvement in problem-solving ability observed in the experimental group. The PBL model was proven effective in fostering active engagement, critical thinking, and students’ analytical skills in solving mathematical problems. This research recommends the implementation of the PBL model as a relevant and adaptive instructional strategy to strengthen the Merdeka Curriculum, particularly in high school mathematics education