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Supriatna, Tatang
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Journal : (JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING

 1 
Analysis of Students’ Mathematical Creative Thinking Skills through Problem-Based Learning on High School Farida, Imas Siti; Hendriana, Heris; Supriatna, Tatang; Yuliani, Anik
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol. 8 No. 2 (2025): VOLUME 8 NUMBER 2, JUNE 2025
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v8i2.23837

Abstract

The problem in learning mathematics today is how to develop creative thinking skills and make it a goal in the mathematics learning process, students often assume that mathematics can only be understood by some students. This research aims to descriptively analyze the creative thinking abilities of students whose learning uses the Problem-Based Learning model in Statistics material. This research uses a qualitative and descriptive-analytical approach by examining the data described to get a detailed and in-depth picture of students' mathematical creative thinking abilities in statistics material. The population in this study were all students at SMA Negeri 6 Tasikamalaya with a sample of 38 students in class X-9 at SMA Negeri 6 Tasikmalaya. In this research, it was found that the average student scores on questions number 1, 2, 3, and 4 were 8.81, 8.43, 7.47, and 9.62. From this analysis, students understand better the solution to question number 4 regarding problem number 4. Then the question that has the lowest average value is question number 3 which concerns the study of questions regarding searching for upper quartile and lower quartile data. So in future research, it is hoped that we will be able to analyze students' abilities in the form of their learning outcomes to see the influence, differences, and interactions that occur in students' mathematics learning outcomes based on their gender.
Enhanching Students’ Mathematical Critical Thinking Skills through Google Sites-Assisted Problem Based Learning on Junior High School Dewi, Mera Komala; Hendriana, Heris; Supriatna, Tatang; Yuliani, Anik
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol. 8 No. 2 (2025): VOLUME 8 NUMBER 2, JUNE 2025
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v8i2.23838

Abstract

The prevalence of students experiencing difficulties in applying mathematics in their daily lives can be attributed to the predominant approach of learning mathematics as a means of applying concepts, rather than as a foundation for learning. This research aims to improve students' mathematical critical thinking skills whose learning is based on Problem-Based Learning assisted by Google Sites. This research used a quasi-experimental research method with a quantitative approach which was carried out at SMPN 2 Cilaku Cianjur with a sample of 30 students in the experimental class and 31 students in the control class on Statistics material. The testing requirements for data analysis used consist of a normality test using Kolmogorov-Smirnov assisted by SPSS software. In this research, it was found that the average score of students in the experimental and control classes was 73.76 and 64.72 on the test before learning was carried out. Then 77.87 and 68.69 on the test after learning. So the average value of N-Gain in the experimental and control classes is 0.20 and 0.10. So, inferential statistical testing shows that the improvement that occurs in students' mathematical learning in the process of critical thinking skills with the Problem-Based Learning learning model assisted by Google Sites is very optimal when compared with conventional learning. Thus, for further research, it is hoped that an analysis of the Problem-Based Learning model can be carried out in comparison with other learning models to see whether some differences and interactions occur using the Analysis of Variance test.  
Analysis of Junior High School Students' Mathematical Problem-Solving Skills in Solving Social Arithmetic Problems Mardiansyah, Dian; Hendriana, Heris; Supriatna, Tatang; Putra, Harry Dwi
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol. 8 No. 2 (2025): VOLUME 8 NUMBER 2, JUNE 2025
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v8i2.23842

Abstract

Education is the main foundation in character building and individual intellectual abilities. Mathematical problem solving ability is one of the important skills that must be mastered by students in the modern educational era, especially in the context of social arithmetic material that is often applied in everyday life. This study aims to analyze the mathematical problem solving ability of students in class VII-A at SMPN 3 Cisarua in solving social arithmetic problems. This research uses a descriptive qualitative approach with data collection methods through interviews with math teachers and observations of students during the learning process and problem solving. The data analysis process was carried out descriptively to describe the variations in students' problem solving abilities and the factors that influence these abilities. The results of the analysis show that the mathematical problem solving ability of students in class VII-A at SMPN 3 Cisarua still varies, with some students showing significant improvement after the application of the Problem-Based Learning (PBL) learning method. Factors such as student engagement in learning, understanding of mathematical concepts, and critical thinking ability affect students' mathematical problem solving ability. The application of PBL method can be one of the effective strategies to improve student engagement, understanding of mathematical concepts, and mathematical problem solving skills. In conclusion, PBL method is proven to be an effective strategy to improve students' engagement, understanding of concepts, and their mathematical problem solving skills, so it can be implemented more widely in mathematics learning.
Analysis of Students’ Errors in Solving Mathematical Critical Thinking Problems on Junior High School Sodik, Rahmat; Hendriana, Heris; Supriatna, Tatang; Putra, Harry Dwi
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol. 8 No. 2 (2025): VOLUME 8 NUMBER 2, JUNE 2025
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v8i2.23858

Abstract

Critical thinking ability is one of the important competencies that students must have in facing challenges in the information age. This research aims to identify the types of errors made by class VII junior high school students in solving critical thinking skills questions on algebra material. This research uses a qualitative descriptive approach with the research subjects were 32 students in class VII.7, data collection was carried out through written tests containing critical thinking questions. It was found that several students made mistakes in solving algebra material questions, namely 1) Not understanding the concept of algebra definition; (2) The settlement process is not systematic; (3) There is no resolution process, go straight to the answer; (4) Do not understand the meaning of the question; (5) Weak in analyzing and arguing (6) Difficulty modeling problems in algebraic form; (7) Not understanding how to calculate operations and the properties of algebraic operations; (8) No identification of questions, no collection and compilation of data in the questions; (9) Not familiar with complex multiple choice questions. This research shows that students' critical thinking skills in solving algebra problems are still low. This is caused by several factors, such as a lack of in-depth understanding of concepts, lack of process skills, and less effective study habits. To improve students' critical thinking abilities, improvements in learning need to be made, such as strengthening understanding of concepts, developing process skills, and improving study habits.
Enhancing Students’ Mathematical Critical Thinking Skills through STEM Learning on Junior High School Pratiwi, Fresty Restu; Hendriana, Heris; Supriatna, Tatang; Putra, Harry Dwi
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol. 8 No. 2 (2025): VOLUME 8 NUMBER 2, JUNE 2025
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v8i2.23894

Abstract

This study aims to Enhancing Students' Mathematical Critical Thinking Skills Through Stem Learning On Junior High School. Critical thinking is an essential component in mathematics education, as it equips students with the ability to solve real-world problems, analyze data, and develop deeper conceptual understanding. The study adopts a quasi-experimental design with a pretest-posttest control group, involving seventh-grade students from SMPIT Mentari Ilmu. The experimental group (VII Shofiyyah) was taught using STEM-based learning, while the control group (VII Khaula) received conventional instruction. Both groups were assessed through pretests and post-tests to evaluate improvements in critical mathematical thinking skills. The data were analyzed using descriptive statistics, normality tests, and independent t-tests to determine the significance of the results. Findings indicated that the experimental group significantly outperformed the control group, with higher post-test scores reflecting greater improvement in critical thinking skills. Moreover, the students and teachers expressed positive responses to the STEM-based approach, highlighting its effectiveness in fostering engagement and higher-order thinking. The study concludes that STEM-based learning serves as an effective pedagogical strategy for enhancing critical thinking in mathematics, making it a valuable tool for junior high school education. The results suggest that this approach should be further developed and implemented to promote students' critical thinking abilities in various educational contexts.
Ethnomathematics on Ayunan Jantra in Bali: Integration of Mathematical Concepts in Culture Al-Jabar, Sheilla Zalzabilla; Fauzi, Fikri; Hidayat, Wahyu; Fitriani, Nelly; Supriatna, Tatang
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol. 8 No. 2 (2025): VOLUME 8 NUMBER 2, JUNE 2025
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v8i2.26861

Abstract

This research explores the concept of ethnomathematics in the ayunan jantra culture in Majalangu Village, Denpasar, Bali. Using an ethnographic approach, this research identifies the mathematical elements contained in the making, structure and use of the jantJra swing. The research was conducted through observation, interviews and documentation when the ayunan jantra was used at a Balinese traditional ceremony. The interview was conducted with Mr. I Made Semara Putra, the manager of the Subak TeBA Majalangu Educational Tourism foundation, Denpasar, Bali. Swing jantra has a philosophy about the values of life, namely the rotation of destiny that we do not know, but must be ready to live it. The main findings of this research are the application of the concepts of geometry, proportion and oscillation in the making and operation of the ayunan jantra. From the geometry aspect, the swing structure includes the position of the support, rotating shaft, and arms that refer to the principles of symmetry and balance. In addition, the measurement of the dimensions of the arms and stand shows the application of the concepts of proportion and comparison. The use of the ayunan jantra also involves the concept of oscillation where the rotating movement resembles harmonic oscillation. This research reveals that Balinese people have intuitively integrated mathematical concepts into their cultural traditions. The findings from this study offer new insights into the relationship between cultural traditions and mathematics learning that could contribute to developing ethnomathematics-based learning in schools. This research is expected to enrich culture-based mathematics learning methods and preserve the local wisdom of the Balinese people.
How Good Students’ Problem-Solving Skills on Senior High School? An Analysis on Sequences and Series Material Pratama, Aris; Hendriana, Heris; Supriatna, Tatang; Afrilianto, M.
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol. 8 No. 3 (2025): VOLUME 8 NUMBER 3, SEPTEMBER 2025
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v8i3.23857

Abstract

Students frequently respond to problems posed by their instructors through trial and error, without first grasping the underlying concepts. They often perceive the problems as entirely new and unrelated to their previous experiences, leading to a lack of confidence and reinforcing the belief that mathematics is a difficult subject. Consequently, their responses are often incorrect or incomplete. The objective of this study is to describe the mathematical problem-solving abilities of grade XI students on the topic of sequences and series in one of the schools in Bekasi Regency. This research employed a descriptive qualitative method, with data analysis techniques based on the interactive model developed by Miles and Huberman. The subjects of this study were 25 grade XI students selected using purposive sampling. The test instrument consisted of problem-solving tasks, while non-test data were obtained through interviews. The results indicate that students' mathematical problem-solving abilities fall into three categories: 4% of students demonstrated high problem-solving skills, 4% were in the medium category, and 92% were classified as low. A detailed analysis of problem-solving indicators reveals that: (1) in understanding the problem, many students struggled to identify the given information and the goal of the problem; (2) in devising a solution plan, most students failed to select an appropriate strategy, often guessing rather than structuring a logical approach; (3) in executing the plan, students in the low category frequently made calculation errors and misapplied formulas; and (4) in reflecting on the solution, very few students revisited their answers to verify accuracy or consider alternative methods. These findings suggest that students’ mathematical problem-solving abilities remain relatively low, with significant gaps in comprehension, planning, execution, and reflection. Strengthening these aspects through targeted interventions is necessary to enhance students’ overall problem-solving skills.
The Effectiveness of Eliciting Activities Model in Learning Mathematics based on Initial Mathematical Skills Stephanie, Eveline; Hendriana, Heris; Supriatna, Tatang; Fitriani, Nelly
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol. 8 No. 3 (2025): VOLUME 8 NUMBER 3, SEPTEMBER 2025
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v8i3.23867

Abstract

Elementary mathematics education necessitates new instructional strategies that can address the varied baseline competencies and backgrounds of kids. The Eliciting Activities Model is a strategy that prioritizes student-centered discovery to enhance learning outcomes. This study seeks to examine the use of the Eliciting Activities Model on mathematics learning outcomes, focusing specifically on students' beginning mathematical competencies and their educational backgrounds. This quantitative study was carried out in three elementary institutions: SDN Batujajar 3, SDN Sukamaju, and SDS Yayasan Beribu, encompassing a total of 81 pupils. The research utilized a survey methodology and applied Two-Way ANOVA to investigate the impact of school origin and beginning mathematical proficiency, along with their interaction, on mathematics learning outcomes. The data gathering process included pre-tests to evaluate students' basic mathematical competencies and post-tests to measure learning results following the implementation of the model. The findings indicated substantial disparities in mathematics learning outcomes contingent upon school origin and pupils' beginning competencies. A notable interaction effect was observed, wherein students with high beginning ability from SDS Yayasan Beribu attained superior learning outcomes relative to students from SDN Batujajar 3 and SDN Sukamaju. The findings indicate that the Eliciting Activities Model effectively improves mathematics learning outcomes, especially when tailored to students' beginning skills and the educational environment.
How Good Mathematical Critical Thinking Skills of Elementary School Student? The Case on Fraction Material Nurlela, Euis; Hendriana, Heris; Supriatna, Tatang; Fitriani, Nelly
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol. 8 No. 3 (2025): VOLUME 8 NUMBER 3, SEPTEMBER 2025
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v8i3.23907

Abstract

Critical mathematical thinking skills are fundamental abilities that students must develop to succeed in mathematics. In learning mathematics on fraction material, the critical mathematical thinking skills of grade V students at Gununghalu 1 Elementary School are not yet optimal. This study seeks to assess the essential mathematical thinking skills of fifth-grade students. The participants in this study consisted of 51 fifth-grade elementary school students from Ciranjang during the 2023/2024 academic year. The object of this research is students' mathematical critical thinking skills, efforts made to develop mathematical critical thinking skills, and obstacles faced in efforts to improve mathematical critical thinking skills. This research method is descriptive quantitative. The data collection techniques used were observation, interview and test. The instrument used to obtain the data in this study is a matter of description test, which amounted to 5 questions. The study revealed that fifth grade students demonstrated an average critical thinking ability of 51%, which falls into the low category. Among the various indicators assessed, the highest score was seen in the analysis of statements, reaching 76%, while the lowest score was in the evaluation of the truth of statements, which stood at just 26%. From this analysis, we can conclude that the mathematical critical thinking skills of fifth grade elementary school students remain at a low level
The Relationship Between Mathematical Reasoning Ability and Self-Efficacy on Junior High School Students Sari, Laras Mawar; Sumarmo, Utari; Supriatna, Tatang
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol. 8 No. 3 (2025): VOLUME 8 NUMBER 3, SEPTEMBER 2025
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v8i3.23932

Abstract

This research is motivated by the significance of mathematical reasoning in problem solving, while self efficacy is considered to influence its development. The objective of this study is to the level of mathematical reasoning ability and self efficacy while also investigating the relationship between these two variables in SPLDV material. The study employs a quantitative approach with a correlational design. The research participants numbered 32 people from class VIII at a junior high school in Karawang Regency. Data collection was done using a mathematical reasoning ability test and a self efficacy questionnaire, both of which were analyzed through descriptive and inferential statistics. The descriptive analysis provides an overview of students mathematical reasoning ability and self efficacy levels, while the inferential analysis applies the Pearson Product Moment correlation test to determine the relationship between the two variables. The descriptive analysis revealed that the average score for students mathematical reasoning ability was 40.63, lacing it in the moderate category, indicating that not all indicators of mathematical reasoning were well achieved. The average self efficacy score was 86.34, which also falls within the moderate range. The inferential analysis showed a strong and significant relationship between mathematical reasoning ability and self efficacy, with a correlation coefficient value of 0,803 and Sig.(2-tailed) = 0,000 where 0,000 < 0.05. This reveals the greater the students self efficacy, the better their ability in mathematical reasoning.
Co-Authors Adi Nurjaman, Adi Al-Jabar, Sheilla Zalzabilla Anik Yuliani Awaludin, Agus Muhamad Dewi, Mera Komala Farida, Imas Siti Fauzi, Fikri Harry Dwi Putra, Harry Dwi Hasanah, Anis Aulia Heris Hendriana Indah Puspita Sari, Indah Puspita M. Afrilianto Mardiansyah, Dian Nelly Fitriani, Nelly Nurlela, Euis Pratama, Aris Pratiwi, Fresty Restu Ramdani, Rasya Asri Royan, Salsabila Zayyana Sari, Laras Mawar Sodik, Rahmat Stephanie, Eveline Utari Sumarmo Wahyu Hidayat