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All Journal Jurnal Purifikasi Psychology, Evaluation, and Technology in Educational Research
Rahma, Ika Ayu Nur
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Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Education Environmental Science Social Sciences

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Mathematical problem-solving ability of Information Technology Faculty students through a realistic approach Puspitasari, Wahyu Dwi; Febrinita, Filda; Rahma, Ika Ayu Nur
Psychology, Evaluation, and Technology in Educational Research Vol. 7 No. 1 (2024)
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/petier.v7i1.246

Abstract

Computer Systems study program students have a low understanding of the material. The mid-term and final exam scores show the level of students' understanding is still low. In addition, the results of previous research also show that students have difficulty completing mathematical calculations. The purpose of this study is to describe students' problem-solving abilities. The research method used is the descriptive method. The instrument used for data collection was a problem-solving ability question developed with a realistic approach. Three validators have validated this problem-solving question, and small-scale testing has stated that the results are valid and reliable. The study results show that 35.71% of students got a good category, 28.57% got the sufficient category, 7.15% got a less category, and 28.57% got the very less category. Aspects of problem-solving abilities that still need to be improved are planning problem-solving, solving problems according to plan, and re-checking the procedures and results of the solution. From the results of this study, applying the problem-solving learning model with a realistic approach to improve students' problem-solving abilities can be done for further research.
PROTOTIPE SISTEM MONITORING KEKERUHAN DAN PENGELOLAAN AIR BERBASIS IoT UNTUK PENGENDALIAN KUALITAS LINGKUNGAN PERAIRAN DALAM BUDIDAYA IKAN RED JEWEL Rahma, Ika Ayu Nur; Kusuma, Abdi Pandu; Kirom, Sabitul
Purifikasi Vol 24 No 2 (2025): Jurnal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Planning, and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/purifikasi.v24i2.472

Abstract

Penelitian ini mengembangkan sistem monitoring kualitas air berbasis Internet of Things (IoT) yang ditujukan untuk pengendalian lingkungan perairan dalam kegiatan budidaya ikan Red Jewel. Fokus utama penelitian adalah pemantauan kekeruhan dan level air secara real-time sebagai indikator kualitas air, serta implementasi sistem otomatisasi dalam proses pengurasan dan pengisian air. Sistem dirancang menggunakan mikrokontroler ESP32 dan sensor kekeruhan serta level air, dengan antarmuka aplikasi Blynk untuk pemantauan jarak jauh. Kualitas air yang buruk dapat memicu peningkatan bahan organik terlarut dan partikel tersuspensi, yang berdampak terhadap pertumbuhan mikroorganisme dan penurunan kandungan oksigen terlarut, sehingga berpotensi mencemari badan air penerima. Dengan sistem ini, volume air yang digunakan dapat dikendalikan secara efisien dan pembuangan limbah cair dapat diminimalkan, mendukung upaya konservasi air dan pengelolaan lingkungan perairan buatan secara berkelanjutan.
Co-Authors Abdi Pandu Kusuma Febrinita, Filda Kirom, Sabitul Puspitasari, Wahyu Dwi