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All Journal EKSAKTA: Journal of Sciences and Data Analysis ECOPLAN : JOURNAL OF ECONOMICS AND DEVELOPMENT STUDIES Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH) Jurnal Statistika dan Matematika (Statmat) Igya ser hanjop: Jurnal Pembangunan Berkelanjutan Jurnal Suara Pengabdian 45 Jurnal Ilmiah Ilmu Terapan Universitas Jambi TONGKONAN: Jurnal Pengabdian Masyarakat Journal of Innovative and Creativity Journal of Mathematics, Computation and Statistics (JMATHCOS) JBIMA: Jurnal Pengabdian kepada Masyarakat Jurnal Nasional Komputasi dan Teknologi Informasi Jurnal THEOREMS (The Original Research of Mathematics)
Trigarcia Maleachi Randa
Department of Mathematics and Statistics, Faculty of Mathematics and Natural Sciences, Universitas Papua, Manokwari, Papua Barat, 98314
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Public Health Social Sciences Other

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Clinic of Mathematics with the PPLAM Approach: Efforts to Improve Students’ Mathematics Learning in Manokwari Loria Amisah Lubis; Trigarcia Maleachi Randa; Esther Ria Matulessy; Chrisaria Palungan; Dahlia Gladiola Rurina Menufandu
Jurnal Nasional Komputasi dan Teknologi Informasi Vol. 9 No. 1 (2026): Februari, 2026
Publisher : Program Studi Teknik Komputer, Fakultas Teknik. Universitas Serambi Mekkah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jnkti.v9i1.225

Abstract

Abstrak - Penelitian ini bertujuan menganalisis efektivitas program Klinik Matematika dengan pendekatan Embedded Learning Analytics (PPLAM) dalam meningkatkan pemahaman siswa kelas VII pada materi operasi bilangan bulat. Penelitian menggunakan metode kuasi-eksperimen dengan desain one-group pretest–posttest. Intervensi dilaksanakan melalui rangkaian kegiatan pretest, latihan terstruktur, dan posttest dalam satu sesi pembelajaran. Subjek penelitian berjumlah 25 siswa yang dipilih secara purposif berdasarkan hasil diagnosis kesulitan belajar. Data diperoleh dari tes hasil belajar dan rekaman aktivitas latihan, kemudian dianalisis menggunakan uji t berpasangan, Normalized Gain (N-Gain), dan effect size (Cohen’s d). Hasil analisis menunjukkan peningkatan yang signifikan, dengan nilai rata-rata N-Gain sebesar 0,578 (kategori sedang) dan effect size sebesar 2,164 (kategori sangat kuat). Analisis PPLAM lebih lanjut menunjukkan bahwa kualitas latihan memberikan kontribusi substansial terhadap hasil posttest dengan nilai R² sebesar 0,70. Temuan ini menegaskan bahwa integrasi PPLAM dalam program Klinik Matematika berperan penting dalam memantau proses belajar dan meningkatkan efektivitas pembelajaran remedial jangka pendek pada materi operasi bilangan bulat. Kata kunci : Klinik Matematika; Operasi hitung Bilangan Bulat; N-Gain; Effect Size; Learning analytics; Abstract - This study examines the effectiveness of a Mathematics Clinic program integrated with Embedded Learning Analytics (PPLAM) in improving seventh-grade students’ understanding of integer operations. A quasi-experimental method with a one-group pretest–posttest design was employed. The intervention consisted of a pretest, structured practice activities, and a posttest conducted within a single learning session. The participants were 25 students selected purposively based on initial learning difficulties. Data were collected from achievement tests and practice-session records and analyzed using a paired-sample t-test, Normalized Gain (N-Gain), and effect size (Cohen’s d). The results indicated a significant improvement, with a mean N-Gain of 0.578 (moderate category) and a large effect size (d = 2.164). Further analysis using PPLAM revealed that practice quality contributed substantially to posttest performance, as indicated by an R² value of 0.70. These findings confirm that PPLAM plays a critical role in monitoring learning processes and enhancing the effectiveness of short-term remedial instruction in integer operations. Keywords: Mathematics Clinic,; Integer Operation; N-Gain; Effect Size; Learning analytics;
The Practicality of Matching Games as Mathematics Learning Media Based on Students' Responses Chrisaria Palungan; Trigarcia Maleachi Randa; Dahlia Gladiola Rurina Menufandu; Esther Ria Matulessy; Loria Amisah Lubis; Rium Hilum; Naila Aria Dinata; Fransisco Baktiar Victorodo Siburian
Jurnal THEOREMS (The Original Research of Mathematics) Vol. 11 No. 3 (2026): Volume 11 Number 3 September 2026
Publisher : Program Studi Pendidikan Matematika Universitas Majalengka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31949/20fn9q77

Abstract

Mathematics learning at the junior high school level requires instructional media that can create an active, interactive, and enjoyable learning environment to help students better understand mathematical concepts. This study aimed to describe the responses of eighth-grade students at SMP Negeri 27 Manokwari toward the use of Matching Games in mathematics learning on the topic of radical and exponent operations. This research employed a quantitative descriptive approach involving 28 eighth-grade students as the research subjects. Data were collected through a student response questionnaire using a Likert scale consisting of aspects of learning motivation, student engagement, media appearance and visual design, and the usefulness of the game. The data were analyzed using percentage techniques to determine the level of student responses toward the instructional media used. The results showed that the Matching Games received positive responses from students, with percentages of 75.6% for learning motivation, 83.04% for student engagement, 71.13% for media appearance and visual design, and 78.87% for the usefulness aspect, all categorized as practical. These findings indicate that the Matching Games was able to create a more active, engaging, and enjoyable mathematics learning environment while helping students understand mathematical concepts through direct activities of matching questions and answers. Therefore, the Matching Games can be used as an alternative mathematics learning media at the junior high school level, particularly for the topic of radical and exponent operations in grade VIII.
Penerapan LASSO Least Trimmed Squares untuk Mengidentifikasi Peubah yang Berpengaruh Penyebaran Penyakit di Sulawesi 138 Selatan Trigarcia Maleachi Randa; Georgina Maria Tinungki; Nurtiti Sunusi
Journal of Mathematics, Computations and Statistics Vol. 6 No. 2 (2023): Volume 06 Nomor 02 (Oktober 2023)
Publisher : Jurusan Matematika FMIPA UNM

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Tuberculosis is a chronic infectious disease which is still a public health problem in the world.Indonesia is a country with the third highest tuberculosis burden after India and China. South Sulawesi isone of the provinces that contributes to the high number of tuberculosis cases in Indonesia in 2020. Linearregression analysis can be applied to tuberculosis data to determine the variables that affect the numberof tuberculosis cases in South Sulawesi. Problems that often arise in regression analysis aremulticollinearity problems and outliers in the data. One method that can be used to solve multicollinearityand outlier problems is the LASSO LTS regression. The LASSO LTS regression is a modification of theLASSO regression method based on the LTS estimator of joint regression. The variables in the tuberculosisdata in South Sulawesi have multicollinearity problems and there are outliers, so in this study an approachwith the LASSO LTS method was used to overcome them. The results showed that the LASSO LTS methodcould overcome multicollinearity and outlier problems in estimating regression parameters as evidencedby the highest coefficient of determination of 89.41%.
Co-Authors Chrisaria Palungan Chrisaria Palungan Dahlia Gladiola Rurina Menufandu Esther Ria Matulessy Esther Ria Matulessy Fransisco Baktiar Victorodo Siburian Georgina Maria Tinungki Harina O.L Monim HUGO WARAMI Irfan Masrudin Junianto Sesa La Ode Muhlis Loria Amisah Lubis Loria Amisah Lubis Lubis, Loria Amisah Marwa, Jonni Mastiur Renita Damanik Matualage, Dariani Naila Aria Dinata Nurhaida Nurhaida Nurhaida, . NURTITI SUNUSI Pramesty Wulan Ramadhanty Rium Hilum Rium Hilum Rium Hilum Sawaki, Yusuf Willem Slamet Arif Susanto