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All Journal JPMI (Jurnal Pembelajaran Matematika Inovatif) (JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING
Supriatna, Tatang
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Education Mathematics Other

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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