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Susanto, Andi

Universitas Islam Negeri Imam Bonjol Padang

Author-ID : 1394402

Agriculture, Biological Sciences & Forestry Arts Humanities Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Education Engineering Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

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Kemampuan Komunikasi Matematis Siswa dengan Model Eliciting Activities dan Problem Based Learning Susanto, Andi; Saputra, Pance; Mardika, Fitria; Fajriah, Wina
EDUSAINS : Journal of Education and Science Vol. 1 No. 1 (2023): June 2023
Publisher : Yayasan Lembaga Studi Makwa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57255/edusains.v1i1.251

Penelitian ini bertujuan untuk mengetahui perbedaan kemampuan komunikasi matematis siswa yang diajar MEA dan PBL kelas VIII SMP Negeri 30 Padang. Populasi penelitian ini terdiri dari 244 siswa kelas VIII SMP Negeri 30 Padang. Teknik pengambilan sampel adalah random sampling, dan sampel yang terpilih adalah kelas VIII E sebagai kelas eksperimen I (MEA) dan kelas VIII F sebagai kelas eksperimen II (PBL). Instrumen yang digunakan adalah tes kemampuan komunikasi matematis yang dianalisis dengan uji t. Rata-rata tes kemampuan komunikasi matematis siswa dengan MEA sebesar 75,85 dan PBL sebesar 73,13. Untuk menguji hipotesis yang diperoleh, ditetapkan t_hitung=0,607 dan t_tabel=2,00. Hal ini menunjukkan bahwa tidak terdapat perbedaan yang signifikan kemampuan komunikasi matematis siswa yang belajar dengan MEA dan kemampuan komunikasi matematis siswa yang belajar dengan PBL. Abstract This study aims to determine differences in the mathematical communication skills of students who are taught by MEAs and PBL class VIII SMP Negeri 30 Padang. This study's population consisted of 244 students from class VIII at SMP Negeri 30 Padang. The sample collection technique was random sampling, and the selected samples were class VIII E as experimental class I (MEAs) and class VIII F as experimental class II (PBL). The instrument used was a test of mathematical communication skills, which were analyzed by the t-test. The average test of students mathematical communication skills with MEAs was 75,85 and PBL was 73,13. To test the hypothesis obtained, set t_count=0,607 and t_table=2,00. This shows that there is no significant difference in the mathematical communication abilities of students who study with MEAs and the mathematical communication abilities of students who study with PBL.

Kemampuan Pemahaman Konsep Matematis Menggunakan Model Pembelajaran Search, Solve, Create and Share (SSCS) Sintia Khairani; Andi Susanto; Fitria Mardika
Jurnal Ilmiah Pendidikan Matematika Al Qalasadi Vol 9 No 2 (2025): JURNAL ILMIAH PENDIDIKAN MATEMATIKA AL QALASADI
Publisher : Prodi Pendidikan Matematika, Fakultas Tarbiyah dan Ilmu Keguruan IAIN Langsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32505/qalasadi.v9i2.10984

Abstrak Penelitian ini bertujuan untuk menganalisis kemampuan pemahaman konsep matematika peserta didik melalui model pembelajaran Search, Solve, Create, dan Share (SSCS) pada kelas VIII di MTsN 1 Pesisir Selatan. Metode yang digunakan dalam penelitian ini adalah desain quasi-eksperimental dengan randomized control group only design. Sampling acak digunakan untuk memilih sampel, dengan kelas VIII B sebagai kelas eksperimen dan VIII A sebagai kelas kontrol. Instrumen penelitian ini adalah tes pemahaman konsep matematika. Hasil penelitian menunjukkan bahwa rata-rata skor pemahaman konsep matematika kelas eksperimen (81,25) lebih baik daripada kelas kontrol (71,88). Pengujian statistik menggunakan uji t pada taraf signifikansi 0,05 menunjukkan bahwa lebih besar dari . Berdasarkan hasil ini, terdapat perbedaan yang signifikan antara kedua kelas. Akibatnya, model SSCS terbukti lebih efektif dalam meningkatkan pemahaman konsep matematika peserta didik dibandingkan dengan model ekspositori. Oleh karena itu, diharapkan dari hasil ini pendidik dapat memutuskan untuk menggunakan SSCS sebagai model pembelajaran alternatif. Kata kunci: Model SSCS, Kemampuan Pemahaman Konsep Matematis. Abstract This research aimed to analyze students' mathematical concept comprehension abilities through the Search, Solve, Create, and Share (SSCS) learning model in grade VIII at MTsN 1 Pesisir Selatan. The method used in this study was a quasi-experimental design with a randomized control group only design. Random sampling was used to select the sample, with class VIII B as the experimental class and VIII A as the control class. The research instrument was a mathematical concept comprehension test. The results showed that the average mathematical concept comprehension score of the experimental class (81.25) was better than that of the control class (71.88). Statistical testing using a t-test at a significance level of 0.05 showed that the was greater than the t-table. Based on these results, there was a significant difference between the two classes. As a result, the SSCS model proved to be more effective in improving students' mathematical concept comprehension than the expository model. Therefore, it is hoped that based on these results, teachers can decide to use SSCS as an alternative learning model. Keywords: SSCS Model, Mathematical Concept Understanding Ability.

Lembar Kerja Peserta Didik Berbasis Project Based Learning yang Praktis dan Efektif Nia Manda Sari; Andi Susanto; Nita Putri Utami; Ibnul Anies
Al-Khwarizmi : Jurnal Pendidikan Matematika dan Ilmu Pengetahuan Alam Vol. 14 No. 1 (2026): Al-Khwarizmi : Jurnal Pendidikan Matematika dan Ilmu Pengetahuan Alam
Publisher : Prodi Pendidikan Matematika FTIK IAIN Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24256/jpmipa.v14i1.8117

Abstract: Mathematical problem-solving competency among seventh-grade students at MTsN 9 Padang Pariaman was identified as substantially lacking, primarily due to the lack of adequate teaching media. The primary purpose of this investiation was to construct a Project Based Learning (PjBL)-oriented Student Worksheet (LKPD) adhering to the standards of validity, practicality, and effectiveness. Data were gathered through interviews, observation, validation sheets, practicality questionnaires, and written assessments. Results demonstrated that the developed LKPD achieved a high validity level with a mean score of 87.31%. In terms of practicality, educators assigned a mean score of 89%, while learners yielded 84.67%. Regarding effectiveness, the instrument attained an N-Gain coefficient of 0.66 with a percentage of 65.76%, corresponding to a moderate classification. These outcomes affirm that the PJBL-based LKPD successfully enhances students' mathematical problem-solving competencies while satisfying the established benchmarks of validity, practicality, and effectiveness. Abstrak: Kemampuan pemecahan masalah matematis peserta didik kelas VII MTsN 9 Padang Pariaman teridentifikasi masih rendah, yang utamanya disebabkan oleh belum tersedia media pembelajaran yang memadai. Tujuan utama penelitian ini untuk merancang dan mengembangkan LKPD berbasis Project Based Learning (PjBL) yang memenuhi standar valid, praktis, dan efektif. Instrumen penelitian terdiri dari wawancara, observasi, formulir validitas, kuesioner praktikalisasi, dan soal tes tertulis. Hasil analisis mengungkapkan LKPD berbasis PjBL memiliki tingkat validitas yang sangat baik dengan rata-rata skor 87,31%. Dari segi praktikalitas, LKPD ini dinilai sangat praktis oleh pendidik dengan rata-rata skor 89%, dan oleh peserta didik dengan rata-rata skor 84,67%. Efektivitas LKPD ini tergolong cukup baik berdasarkan skor N-Gain sebesar 0,66 (kategori sedang) dan persentase N-Gain sebesar 65,76% (kategori cukup efektif). Dengan demikian, LKPD berbasis PjBL yang dikembangkan terbukti mampu meningkatkan kemampuan pemecahan masalah matematis peserta didik sekaligus memenuhi kriteria valid, praktis, dan efektif.

EFFECTIVENESS OF “BERHITUNG CEPAT” TRAINING ON THE FOUNDATIONAL MATHEMATICS COMPETENCE OF MADRASAH IBTIDAIYAH TEACHER’S Andi Susanto; Fitria Mardika; Ibnul Anies
Math Educa Journal Vol 10, No 1 (2026)
Publisher : UIN Imam Bonjol Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15548/mej.v10i1.13848

This study investigates how effective rapid calculation training is in improving the basic math skills of Madrasah Ibtidaiyah (MI) teachers in West Sumatra. This research was conducted because teachers rarely use effective calculation strategies and there are no professional development programs specifically aimed at enhancing their basic math skills. A quantitative method was used with a single pretest-posttest group. The study involved 125 teachers from four Madrasah Ibtidaiyah located in West Sumatra, and 96 participants were selected using purposive sampling. Data were collected through rapid calculation tests administered before and after the training intervention. Paired-sample t-tests and the N-Gain index were used to analyze the collected data. The results showed a statistically significant improvement in participants' performance after the training, with a significance value of 0.000 (p < 0.05). In the posttest, the average score increased from 36.00 in the pretest to 67.27 in the posttest. In addition, the level of participant competence improvement is shown by an N-Gain value of 0.49. The results indicate that calculation training is effective in quickly improving the basic mathematics competence of MI teachers. These results also show that this type of training can serve as a feasible professional development program to enhance teachers' mathematics skills and improve the quality of mathematics learning in Madrasah Ibtidaiyah.

Optimasi Biaya dan Gizi Bahan Pangan Mentah Program MBG Siswa SMP Padang Menggunakan Simpleks-Python Andi Susanto; Alya Rozali Ramadhani; Defi Angriani; Mutia Mutia
FARABI: Jurnal Matematika dan Pendidikan Matematika Vol 9 No 1 (2026): FARABI: Jurnal Matematika dan Pendidikan Matematika
Publisher : Program Studi Pendidikan Matematika FKIP UNIVA Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47662/farabi.v9i1.1452

The Free Nutritious Meal Program requires menu planning that is able to meet students’ nutritional needs at an efficient cost. This study aims to determine the optimal combination of raw food ingredients for the Free Nutritious Meal menu for female junior high school students aged 13–15 years in Padang City using a linear programming approach with the Simplex method assisted by Python. This research is an applied study with a quantitative approach. Food price data were obtained from local price sources in Padang City and field data from a Nutritional Fulfillment Service Unit, while nutritional composition data were based on the Indonesian Food Composition Table. Nutritional requirements were determined based on 30% of the Recommended Dietary Allowance according to the Indonesian Ministry of Health Regulation Number 28 of 2019, covering eleven nutritional components: energy, protein, fat, carbohydrates, fiber, calcium, iron, folate, vitamin A, vitamin B1, and vitamin C. Five menu combinations were formulated into a costminimization objective function with nutritional constraints, portion limits, and budget constraints. The optimization results show that three of the five menu combinations were feasible, namely K2, K4, and K5, while K1 and K3 were infeasible. The K2 combination was identified as the optimal solution and fulfilled all nutritional constraints. These findings indicate that the Python-assisted Simplex method is effective in determining an efficient, measurable, and nutritionally adequate menu composition for the Free Nutritious Meal Program.

Model Estimasi Batas Aman Gedung Shelter terhadap Tsunami di Kota Padang Menggunakan Model Inundasi Hills dan Mader Andi Susanto; Alya Nabila; Desti Afirda; Nabilla Yusda; Nurul Annisa Dwinanda
Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Vol. 7 No. 3 (2026): August
Publisher : Mataram University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/goescienceed.v7i3.2693

Padang City is one of the regions with a high risk of earthquakes and tsunamis. Following an earthquake that has the potential to generate a tsunami, residents must immediately evacuate to safer locations. Based on the evacuation simulations conducted by the government, the West Sumatra Grand Mosque has been designated as one of the vertical evacuation shelters. Although the building was designed to withstand earthquakes, it is also necessary to ensure that its elevation is sufficient to protect the community from tsunami hazards. Therefore, this study aims to estimate the safe tsunami limit for the second floor of the West Sumatra Grand Mosque using the Hills and Mader inundation model combined with the SCHEMA model. The results of the study provide a safe tsunami threshold interval by classifying shelter conditions into three categories: safe, when the inundation depth remains below the evacuation floor elevation; alert, when the inundation depth approaches the evacuation floor elevation, requiring evacuation to a higher floor; and unsafe, when the inundation depth exceeds the available evacuation floor elevation. These threshold intervals provide a basis for evaluating the suitability of vertical evacuation shelters under various tsunami scenarios in Padang City. The findings of this study are expected to serve as a reference for the planning and evaluation of vertical evacuation shelters and to support tsunami disaster mitigation efforts in Padang City.

ANALYSIS OF STUDENT ERRORS IN SOLVING STORY PROBLEMS BASED ON KASTOLAN'S THEORY Astri Zulaika Pohan; Andi Susanto; Christina Khaidir
Math Educa Journal Vol 9, No 2 (2025)
Publisher : UIN Imam Bonjol Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15548/mej.v9i2.12503

Errors in solving math story problems remain a common problem among students. This is due to the lack of in-depth analysis by teachers of the types of errors made by students based on Kastolan's theory, resulting in the same patterns of errors being repeated. Based on this problem, this study aims to identify and describe the types of errors made by students in solving mathematical story problems based on Kastolan's theory. This study uses a quantitative descriptive approach with a sample of 36 students in class X.E6 at SMAN 2 Bukittinggi, selected through purposive sampling. The research instrument was a story problem test on trigonometry consisting of five questions. The data were analyzed using descriptive statistics to obtain the percentage of each type of error. The results showed that 21 students (59.44%) made conceptual errors, 24 students (67.67%) made procedural errors, and 22 students (62.78%) made technical errors. Thus, procedural errors were the most dominant type of error made by students. These findings indicate the need for more systematic learning strategies and an emphasis on procedural understanding in solving mathematical story problems.

Pemodelan Matematis Pertumbuhan Bakteri Lactobacillus casei Menggunakan Model Eksponensial Untuk Menghitung Kebutuhan Industri Andi Susanto; Husna Fitri; Lusi Afrina; Amanda Putri Sitompul
Saintifik: Jurnal Matematika, Sains, dan Pembelajarannya Vol 12 No 2 (2026): Saintifik: Jurnal Matematika, Sains, dan Pembelajarannya
Publisher : Universitas Sulawesi Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31605/saintifik.v12i2.665

Lactobacillus casei merupakan bakteri asam laktat bernilai probiotik tinggi yang krusial dalam sektor industri, khususnya pada produksi susu fermentasi. Pengendalian populasi bakteri pada fase awal fermentasi sangat penting untuk mengoptimalkan efisiensi dan kualitas produk. Penelitian ini bertujuan mengkonstruksi model matematika dari dinamika populasi L. casei pada fase awal fermentasi serta memproyeksikan kebutuhan populasinya. Model diturunkan dari persamaan diferensial biasa (PDB) orde satu dan diselesaikan menggunakan metode pemisahan variabel. Karena tidak menggunakan pengujian laboratorium secara in vivo, penelitian ini menggunakan data simulasi numerik yang dirancang untuk merepresentasikan perilaku fase logaritmik bakteri pada periode observasi jam. Estimasi parameter model dilakukan melalui pendekatan regresi linier terhadap data simulasi tersebut. Hasil analisis menghasilkan model pertumbuhan eksponensial , dengan R² = 0,9996. Berdasarkan model ini, populasi bakteri diproyeksikan mencapai 11.649.482 sel/mL pada jam ke-7. Temuan ini menegaskan bahwa PDB orde satu efektif memodelkan fase eksponensial awal probiotik. Penggunaan data simulasi dalam studi ini juga membuktikan bahwa pendekatan matematis dapat diaplikasikan oleh industri untuk mengestimasi kebutuhan durasi fermentasi secara akurat dan efisien.

Matematika dan Konseling: Pendekatan Interdisipliner untuk Mendukung Pembelajaran dan Kesejahteraan Emosional Anak-anak TKI di Malaysia Rahmi; Yuslenita Muda; Amirah Diniaty; Kartini; Sri Gemawati; Rita Desfitri; Andi Susanto; Zubaidah Amir
Jurnal SOLMA Vol. 15 No. 2 (2026)
Publisher : Universitas Muhammadiyah Prof. DR. Hamka (UHAMKA Press)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22236/solma.v15i2.22057

Background: Kegiatan pengabdian kepada masyarakat ini bertujuan memberikan dukungan pembelajaran dan pendampingan psikososial bagi anak-anak TKI di Sanggar Bimbingan Amin, Malaysia, melalui pendekatan interdisipliner antara matematika dan konseling. Metode: Kegiatan dilaksanakan pada 8–10 Desember 2024 dengan melibatkan 20 anak usia 3–13 tahun melalui pembelajaran matematika menyenangkan, permainan edukatif, diskusi interaktif, dan terapi diri menggunakan art therapy. Hasil: Hasil kegiatan menunjukkan bahwa anak-anak mengikuti kegiatan dengan antusias, menunjukkan respons positif terhadap pembelajaran matematika berbasis permainan, serta merasa lebih nyaman mengekspresikan pengalaman dan perasaan mereka dalam sesi art therapy. Program ini memberikan manfaat awal bagi penguatan rasa percaya diri, interaksi sosial, dan suasana belajar yang lebih suportif. Kesimpulan: Secara umum, pendekatan interdisipliner ini berpotensi mendukung perkembangan akademik dan emosional anak-anak TKI, namun evaluasi yang lebih terukur masih diperlukan untuk menilai dampak program secara lebih meyakinkan.

Co-Authors Aljabar, Muhammad Asimulades Alya Nabila Alya Rozali Ramadhani Amanda Putri Sitompul Amelia Putri Amin, Muhammad Fakhril Amirah Diniaty Annisa, Nurul Hasanah Ariadi, Sony Asfaâ€™ani, Ezhari Astri Zulaika Pohan Azmir, Safinah Chotijah, Siti Christina Khaidir Defi Angriani Desti Afirda Diana Nurfadilah Faizah Quratu Aini Fajriah, Wina Fitria Mardika Gusti Desmiyanti Hasanah, Tiara Datul Husna Fitri Ibnul Anies Ismi Yatul Hasanah Kartini Lusi Afrina Mardika, Fitria Martin Kustati Muhammad Abrori Mutia Mutia Nabilla Yusda Nana Sepriyanti Nana Sepriyanti Nana Sepriyanti Nia Manda Sari Nita Putri Utami Nur Mu'minah Nursaliyah, Nursaliyah Nurul Annisa Dwinanda Pratiwi, Reni Septia Putri Rahmah Putri Rahmah Putri, Sinta Maidatul Rahmat Arrahman, Rahmat Rahmat Ilahi Rahmi Rahmi Rayhan Meldi Sentana Rita Desfitri Rivdya Eliza Rozi Fitriza Safitri, Tasya Safri Mardison Said, Fadilla Fadya Santana, Rayhan Meldi Saputra, Pance Sintia Khairani Siti Chotijah Siti Zaenab Spriyanti, Nana Sri Gemawati Sumiarti Sumiarti Syahlul Erbi Syaputra Utami, Nita Putri Wahid, Rahmatul Wahyuna, Fitra Yanti, Yulia Desri Yose Wahyu Andesta Yulia Yulia Yuslenita Muda Zubaidah Amir Zulvia Trinova

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