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All Journal Didaktik : Jurnal Ilmiah PGSD STKIP Subang QISTINA: Jurnal Multidisiplin Indonesia Journal of Education Religion Humanities and Multidiciplinary
Muhammad Ridho
Universitas Negeri Medan
Religion Humanities Economics, Econometrics & Finance Education Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Nursing Social Sciences

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EFEKTIVITAS MODEL PJBL BERBANTUAN E-MODUL BERBASIS STEM DALAM MENINGKATKAN KEMAMPUAN BERPIKIR KREATIF PADA MATERI ENERGI TERBARUKAN Robi Aryanta Sembiring; Inov Ivoel Situmorang; Muhammad Ridho; Pio Situmorang; Mariati Purnama Simanjuntak
Didaktik : Jurnal Ilmiah PGSD STKIP Subang Vol. 12 No. 02 (2026): Volume 12 Nomor 02, Juni 2026 Published
Publisher : STKIP Subang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36989/didaktik.v12i02.15164

Abstract

This study aims to analyze the effectiveness of the Project Based Learning (PjBL) model assisted by STEM-based e-modules in improving students' creative thinking skills on renewable energy material. The study used a quantitative descriptive method with a mini-research approach on 25 grade XI students and one physics teacher at SMA Negeri A. Data were collected through interviews and questionnaires using Google Forms, then analyzed descriptively quantitatively and qualitatively. The results showed that students' creative thinking skills were still low because learning was teacher-centered. The majority of students responded positively to the implementation of PjBL assisted by STEM-based e-modules because it was more interesting, interactive, and helped understand the material. Thus, the model has the potential to improve students' creative thinking skills in physics learning.
Implementation of the Caesar Chiper Method in Cryptography for Message Data Security Muhammad Ferdiansyah Hidayat; Muhammad Ridho; Zulfahmi Indra
QISTINA: Jurnal Multidisiplin Indonesia Vol. 3 No. 2 (2024): December 2024
Publisher : CV. Rayyan Dwi Bharata

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57235/qistina.v3i2.4027

Abstract

Data security in the digital era is a very important aspect, especially in maintaining the confidentiality and integrity of information transmitted over the network. One of the classic cryptographic methods that is often used to secure messages is the Caesar Cipher. This method uses a simple substitution technique, where each letter in the message is shifted a certain number of steps in the alphabet. This research discusses the implementation of the Caesar Cipher method as a basic solution for message data security. Although this algorithm is relatively easy to implement and understand, the Caesar Cipher has weaknesses, mainly due to its fixed shifting pattern making it vulnerable to brute force attacks or frequency analysis. Through testing and implementation, this research shows how Caesar Cipher works in the encryption and decryption process, and evaluates its effectiveness in protecting messages from unauthorized access. The results show that this method, although less powerful than modern algorithms, can still be used for certain scenarios that do not require a high level of security. On the other hand, the weaknesses underscore the importance of developing and using more complex cryptographic methods to protect more sensitive information in today's digital era.
Implementation of AI in Student Health Risk Analysis: Case Study Using Random Forest and SVM Algorithms Parhan Daulay; Muhammad Ridho; Muhammad Ferdiansyah Hidayat; Sri Dewi; Fanny Ramadhani
QISTINA: Jurnal Multidisiplin Indonesia Vol. 3 No. 2 (2024): December 2024
Publisher : CV. Rayyan Dwi Bharata

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57235/qistina.v3i2.4160

Abstract

The health of students on campus is often threatened by stress and unhealthy living habits, such as poor sleep patterns or lack of physical activity. Students' health is important to their achievement and well-being. By using AI and machine learning algorithms such as Random Forest and Support Vector Machine (SVM), we can analyze health data more quickly and accurately. This helps detect problems early and provide timely assistance. Early identification of students who have the potential to experience health problems, so that timely intervention can be carried out. This research uses quantitative methods by collecting from various sources related to the use of AI and machine learning algorithms in analyzing student health at Medan State University. Data was collected through a survey at Medan State University, covering daily habits such as sleep patterns, physical activity and stress levels. With the results of this analysis, campuses can design health policies that are more effective and appropriate to student needs. It is hoped that this research can contribute to improving the health and well-being of students in the campus environment, as well as preventing more serious health problems in the future.
Pengembangan Variasi Pemanasan (Warm-Up) Berbasis Permainan “Quick Run Challenge” Untuk Pembelajaran Pendidikan Jasmani Nazmi Azhari; Muhammad Zaidan Hrp; Nuansa Cristian S Pandia; Muhammad Ridho; Najwa Amalia Lubis; Oman Syuku Emanuel Waruwu; Ade Ros Riza
Journal of Education Religion Humanities and Multidiciplinary Vol. 3 No. 2 (2025): Desember 2025
Publisher : CV. Rayyan Dwi Bharata

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57235/jerumi.v3i2.7622

Abstract

Pembelajaran Pendidikan Jasmani (Penjas) menuntut adanya variasi aktivitas yang mampu meningkatkan motivasi, partisipasi, dan kebugaran peserta didik. Salah satu komponen penting dalam pembelajaran Penjas adalah kegiatan pemanasan (warm-up) yang berfungsi mempersiapkan kondisi fisik dan psikologis sebelum memasuki aktivitas inti. Namun, praktik pemanasan di sekolah masih sering bersifat monoton sehingga kurang mampu menumbuhkan antusiasme peserta didik. Artikel ini bertujuan untuk mengembangkan variasi pemanasan berbasis permainan yang diberi nama “Quick Run Challenge” sebagai inovasi dalam kegiatan awal pembelajaran Penjas. Model pemanasan ini dirancang melalui lima tahapan gerak, yakni cone running, push-up jump, zig-zag running, lunges walk, dan side-run return, yang disusun dalam bentuk permainan kompetitif namun tetap edukatif. Metode penelitian menggunakan pendekatan pengembangan (R&D) sederhana yang memfokuskan pada analisis kebutuhan, perancangan model, dan uji keterlaksanaan pada peserta didik sekolah menengah. Hasil pengembangan menunjukkan bahwa variasi pemanasan “Quick Run Challenge” mampu meningkatkan keterlibatan aktif peserta didik, memberikan stimulus motorik yang lebih beragam, serta menumbuhkan motivasi melalui unsur permainan. Selain itu, aktivitas ini dinilai efektif dalam melatih kekuatan otot, kelincahan, koordinasi, serta daya tahan kardiovaskular. Dengan demikian, model pemanasan ini dapat menjadi alternatif strategis dalam upaya memperkaya variasi pembelajaran Penjas di sekolah.
Co-Authors Inov Ivoel Situmorang Muhammad Ferdiansyah Hidayat Muhammad Zaidan Hrp Najwa Amalia Lubis Nazmi Azhari Nuansa Cristian S Pandia Oman Syuku Emanuel Waruwu Parhan Daulay Pio Situmorang Ramadhani, Fanny Riza, Ade Ros Robi Aryanta Sembiring Simanjutak, Mariati Purnama Sri Dewi Zulfahmi Indra, Zulfahmi