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Thunderstorm Algorithm for Determining Unit Commitment in Power System Operation Afandi, A.N.; Sulistyorini, Yunis
Journal of Engineering and Technological Sciences Vol 48, No 6 (2016)
Publisher : ITB Journal Publisher, LPPM ITB

Solving the unit commitment problem is an important task in power system operation for deciding a balanced power production between various types of generating units under technical constraints and environmental limitations. This paper presents a new intelligent computation method, called the Thunderstorm Algorithm (TA), for searching the optimal solution of the integrated economic and emission dispatch (IEED) problem as the operational assessment for determining unit commitment. A simulation using the IEEE-62 bus system showed that TA has smooth convergence and is applicable for solving the IEED problem. The IEEDâs solution is associated with the total fuel consumption and pollutant emission. The proposed TA method seems to be a viable new approach for finding the optimal solution of the IEED problem.

Analysis on Relational-Understanding in Solving Problem for Field Independent Students Yazidah, Nok Izatul; Argarini, Dian Fitri; Sulistyorini, Yunis
AT-TA'LIM Vol 25, No 3 (2018)
Publisher : Institut Agama Islam Negeri Imam Bonjol Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15548/jt.v25i3.502

This research is triggered by one of mathematics learning objectives in Senior High School which is about understanding mathematics concept. Based on the result of the observation and the conducted interview with mathematics teachers, it is said that on learning Combinatorica, students are always less of ability to solve the problem, sometimes students’ answer only focus on what is being asked. The purpose of this reasearch is to describe students’ relational understanding in solving problems for FI students based on the gender. The subjects of this research are Senior High School students having field independent cognitive style in Malang and have been choosen randomly. The subjects consist of two students, a boy and a girl. The instruments needed in this research are sheet of GEFT test, sheet of Combinatorica questions, and interview sheet. The result of this research states that FI girl student has ability on relational understanding as the same as the FI boy students has. But the process in solving problem made by the boy student is likely similar to the accurate process in solving problems.

Persepsi Mahasiswa terhadap 4K dalam Pembelajaran Matematika Sulistyorini, Yunis; Napfiah, Siti
JMPM: Jurnal Matematika dan Pendidikan Matematika Vol 4, No 1: Maret - Agustus 2019
Publisher : Universitas Pesantren Tinggi Darul 'Ulum Jombang

Penelitian ini dilakukan untuk mengetahui persepsi mahasiswa tentang pentingnya 4K (Kritis, Kreatif, Komunikatif, dan Kolaboratif) dalam pembelajaran matematika. Pendekatan penelitian ini adalah penelitian kuantitatif dan kualitatif. Berdasarkan hasil penelitian diperoleh informasi bahwa sebagian besar responden memilih tanggapan setuju dengan persentase rata-rata 57% untuk komponen kritis, sebagian besar responden memilih tanggapan setuju dengan persentase rata-rata 59% untuk komponen kreatif, sebagian besar responden memilih tanggapan setuju dengan persentase rata-rata 51% untuk komponen komunikatif, dan responden memilih tanggapan setuju dengan persentase rata-rata 49% serta tanggapan sangat setuju dengan persentase rata-rata 49% untuk komponen kolaboratif. Dengan demikian, sebagian besar mahasiswa merasa bahwa 4K penting dalam pembelajaran matematika. Berdasarkan hasil penelitian, para pengajar matematika disarankan untuk menerapkan pembelajaran berbasis 4K.

Students' High-Level Thinking Ability In Learning Mathematics In The Era Of Pandemic Covid-19 Yazidah, Nok Izatul; Argarini, Dian Fitri; Sulistyorini, Yunis
International Journal for Educational and Vocational Studies Vol 3, No 2 (2021)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/ijevs.v3i2.3429

High-level thinking skills are an ability that students must have to support how students can think creatively and critically. But what about the learning process in the Covid-19 pandemic era, which can still pay attention to students' higher-order thinking skills. This study aims to describe the learning process in the Covid-19 era in junior high schools in Malang district, and how the students' high-level thinking skills. The data collection methods used were interviews and tests. The research data obtained during the study shows that teachers have maximized the use of online learning platforms to support the virtual learning process recommended by the government. In addition, it was found that the high level thinking ability of junior high school students in Malang district had met the minimum standard set by the researcher at 75%.

Studi Etnomatematika Geometri pada Artefak Peninggalan Sejarah di Kota Malang Safitri, Rizky Romadhonah; Sulistyorini, Yunis
MATHEMA: JURNAL PENDIDIKAN MATEMATIKA Vol 5, No 2 (2023): MATHEMA
Publisher : Universitas Teknokrat Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33365/jm.v5i2.2876

Kerajaan Singosari merupakan salah satu dari budaya di Indonesia. Jika dipandang dalam perspektif matematika terdapat konsep matematika pada artefak Candi Singosari. Salah satu konsep matematika tersebut adalah geometri. Tujuan penelitian ini adalah untuk mengeksplorasi konsep geometri yang terdapat pada Candi Singosari. Penelitian ini adalah penelitian deskriptif dengan pendekatan kualitatif. Menggunakan metode pengumpulan data observasi, wawancara, dan dokumentasi. Teknik validasi data dalam penelitian ini yaitu menggunakan triangulasi sumber dan triangulasi metode. Berdasarkan hasil penelitian pada Candi Singosari terdapat konsep matematika geometri dan implementasi bentuk bangun geometri pada struktur bangunan Candi Singosari seperti, adanya beberapa bangun datar, bangun ruang, sudut dan geometri transformasi (refleksi dan translasi).Kata Kunci: artefak, candi Singosari, etnomatematika, geometri.

Pelatihan Hidroponik untuk Meningkatkan Kreativitas Siswa dengan Memanfaatkan Barang Bekas Wardani, Novia Kusuma; Nugroho, Syifa Alfina; Sulistyorini, Yunis; Sumitro, Nopem K.; Lestari, Purwaning Budi
JPM PAMBUDI Vol 8 No 01 (2024): JPM Pambudi
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat (P2M) IKIP Budi Utomo Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33503/pambudi.v8i01.4358

The aim of this training was to provide students with knowledge in hydroponic plant cultivation. The background to this training was students' lack of knowledge in hydroponic plant cultivation and agricultural land was low. The participants involved in this training were grade 11 students of SMA Negeri 2 Negeri Katon, Pejambon Village, Negeri Katon District, South Lampung Regency, Lampung. The training implementation method included three stages, namely the socialization and counselling stage, the activity implementation stage and the reflection stage with training activity steps starting from socialization to students, making media charts from plastic bottles and cups, sowing plant seeds, continued with the implementation of hydroponic plant cultivation. The reflection stage was carried out after the implementation process by looking at the shortcomings and obstacles faced by students so that it can be carried out continuously and developed. This training is expected to be developed by students and teachers in order maintain the school environment, systems for utilizing school grounds and the surrounding environment, as well as increasing the creativity of students at grade XI in cultivating plants, especially vegetables, to meet daily nutritional needs.

Persepsi Mahasiswa terhadap 4K dalam Pembelajaran Matematika Sulistyorini, Yunis; Napfiah, Siti
JMPM: Jurnal Matematika dan Pendidikan Matematika Vol 4 No 1: March - August 2019
Publisher : Prodi Pendidikan Matematika Universitas Pesantren Tinggi Darul Ulum Jombang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26594/jmpm.v4i1.1541

Penelitian ini dilakukan untuk mengetahui persepsi mahasiswa tentang pentingnya 4K (Kritis, Kreatif, Komunikatif, dan Kolaboratif) dalam pembelajaran matematika. Pendekatan penelitian ini adalah penelitian kuantitatif dan kualitatif. Berdasarkan hasil penelitian diperoleh informasi bahwa sebagian besar responden memilih tanggapan setuju dengan persentase rata-rata 57% untuk komponen kritis, sebagian besar responden memilih tanggapan setuju dengan persentase rata-rata 59% untuk komponen kreatif, sebagian besar responden memilih tanggapan setuju dengan persentase rata-rata 51% untuk komponen komunikatif, dan responden memilih tanggapan setuju dengan persentase rata-rata 49% serta tanggapan sangat setuju dengan persentase rata-rata 49% untuk komponen kolaboratif. Dengan demikian, sebagian besar mahasiswa merasa bahwa 4K penting dalam pembelajaran matematika. Berdasarkan hasil penelitian, para pengajar matematika disarankan untuk menerapkan pembelajaran berbasis 4K.

Analisis kemampuan berpikir kreatif dan analitik dalam memecahkan masalah perbandingan Mahbub, Roihul; Sulistyorini, Yunis
Primatika : Jurnal Pendidikan Matematika Vol. 14 No. 1 (2025)
Publisher : Program Studi Pendidikan Matematika, Fakultas Keguruan dan Ilmu Pendidikan, Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/primatika.v14i1.4936

Pendidikan matematika di sekolah bertujuan tidak hanya untuk mengajarkan rumus, tetapi juga untuk mengembangkan keterampilan berpikir tingkat tinggi, seperti berpikir kreatif dan analitik. Keterampilan ini sangat penting dalam memecahkan masalah matematika, khususnya pada materi perbandingan yang diajarkan di kelas VII Sekolah Menengah Pertama (SMP). Penelitian ini bertujuan untuk menganalisis sejauh mana peserta didik dapat mengaplikasikan kemampuan berpikir kreatif dan analitik dalam menyelesaikan soal-soal perbandingan. Dengan menggunakan pendekatan deskriptif kualitatif, penelitian ini melibatkan tiga peserta didik kelas VII SMP yang dipilih berdasarkan kemampuan matematika menengah hingga tinggi. Data dikumpulkan melalui tes tertulis, wawancara semi-terstruktur, dan dokumentasi hasil kerja siswa. Hasil penelitian menunjukkan bahwa masing-masing peserta didik menunjukkan kemampuan berpikir analitik dan kreatif yang berbeda dalam menyelesaikan masalah perbandingan. Penelitian ini menekankan pentingnya pengembangan kedua keterampilan tersebut dalam pembelajaran matematika di sekolah.

Pemanfaatan Sampah Plastik Sebagai Keterampilan Siswa Untuk Pembuatan Ecobrick Di Desa Ngingit Kecamatan Tumpang Kabupaten Malang Tahilia, Yohanes Laba; Yazidah, Nok Izatul; Sulistyorini, Yunis; Riyanto, Riyanto; Saputra, Nisvu Nanda
Community Services and Social Work Bulletin Vol 5, No 1 (2025): Community Services and Social Work Bulletin Volume 5 No. 1 2025
Publisher : Universitas Muhammadiyah Tangerang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31000/cswb.v5i1.13882

This community-based service initiative explores an educational and environmental intervention conducted in Alas Gede, Ngingit Village, Tumpang District, Indonesia, focusing on the transformation of plastic waste into ecobricks by elementary school students. As plastic pollution escalates into a critical global environmental challenge, this program presents an integrative solution by combining environmental education with practical waste management skills. Ecobricks—plastic bottles densely packed with clean, non-organic waste—serve as a low-cost, scalable, and ecologically responsible alternative for repurposing plastic waste into usable construction materials. The uniqueness of this initiative lies in its pedagogical approach that merges hands-on learning, environmental awareness, and community empowerment at the grassroots level. The program not only enhances students’ cognitive and behavioral competencies regarding recycling practices but also strengthens collective environmental stewardship within the village. This article delineates the step-by-step implementation of the program, identifies operational challenges, and evaluates its multi-dimensional impacts on both the educational environment and the broader community. Findings suggest that integrating ecobrick production into school-based environmental curricula fosters sustainable behavior, promotes participatory waste management, and has potential for replication in other rural contexts facing similar ecological issues

ANALYSIS OF MATHEMATICS LEARNING MOTIVATION FOR JUNIOR HIGH SCHOOL GRADE 7 IN THE IMPLEMENTATION OF THE KURIKULUM MERDEKA Yazidah, Nok Izatul; Khairunisa, Helda; Sulistyorini, Yunis
Prima: Jurnal Pendidikan Matematika Vol 9, No 2 (2025): PRIMA : Jurnal Pendidikan Matematika
Publisher : FKIP Universitas Muhammadiyah Tangerang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31000/prima.v9i2.13898

Learning motivation is one of the crucial factors that influence students' success in understanding subject matter, including mathematics which is often considered challenging. This study aims to examine the level of student motivation in learning mathematics in the implementation of the Independent Curriculum, identify various factors that influence learning motivation, and evaluate the effectiveness of the Independent Curriculum itself. Using a qualitative descriptive approach through interview and observation methods, this study found that most students showed learning motivation at a moderate level, while only a few were at a high or low level of motivation. Various factors that influence learning motivation consist of internal and external factors. The implementation of the Independent Curriculum is considered to provide flexibility for students with high motivation, but has not fully supported students with low motivation due to limited teacher training and learning resources. The conclusion of this study is that the Independent Curriculum has a great opportunity to increase student learning motivation if supported by the implementation of personal learning strategies, increasing teacher competence, and utilizing innovative learning technology.

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