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Rahmad Suryadi
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PERBANDINGAN EFEKTIVITAS MULTIMEDIA PEMBELAJARAN INTERAKTIF DAN MEDIA PRESENTASI TERHADAP HASIL BELAJAR GEOGRAFI SISWA SMA Rahmad Suryadi; Ernawati
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 11 No. 01 (2026): Volume 11 No. 01, Maret 2026 Release
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v11i01.41659

Abstract

This study aims to compare the effectiveness of the use of interactive learning multimedia and presentation media on the learning outcomes of Geography of Senior High School students. This study uses a quantitative approach with a quasi-experimental method and a Nonequivalent Control Group Design. The subjects of the study were students of grade XI Phase F of SMA Negeri 1 Batipuh consisting of two classes, namely the experimental class using interactive learning multimedia and the control class using conventional presentation media. The research instrument was a multiple-choice objective test that had been tested for validity, reliability, difficulty level, and discrimination power. Learning outcome data were analyzed using a t-test. The results showed that the average learning outcome of students in the experimental class was 80.16, while the control class was 75.94. The results of the hypothesis test showed a t-value of 2.247 greater than the t-table of 1.999 at a significance level of 0.05. Thus, it can be concluded that interactive learning multimedia is more effective than presentation media in improving the learning outcomes of Senior High School students in Geography.
POTENSI PENERAPAN SELF-HEALING CONCRETE UNTUK MENINGKATKAN KETAHANAN INFRASTRUKTUR DI WILAYAH RAWAN GEMPA: STUDI KASUS SUMATERA BARAT Badzlina Harvy Nesya; Rahmad Suryadi; Shafwan; Ahsanul Ihsan; Salsa Fadilah; Radit Virdaus
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 11 No. 02 (2026): Volume 11 No. 2, Juni 2026 Publish
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v11i02.56813

Abstract

Indonesia, located in one of the world’s most active seismic zones, faces major challenges in maintaining infrastructure resilience against earthquakes. Structural damage caused by microcracks in conventional concrete often leads to performance degradation and high maintenance costs. This study examines the potential application of Self-Healing Concrete (SHC) as an innovative material to enhance infrastructure durability in earthquake-prone regions, particularly in West Sumatra. SHC functions through biological and chemical mechanisms, where agents such as Bacillus subtilis and calcium lactate produce calcium carbonate (CaCO₃) to autonomously seal cracks. Findings indicate that SHC can increase concrete durability by up to 20%, reduce water permeability by 45%, and extend the service life of structures by more than two decades. Moreover, SHC supports carbon emission reduction and promotes sustainable resilient infrastructure. Therefore, the implementation of SHC represents a strategic approach to achieving durable, efficient, and environmentally friendly infrastructure in Indonesia’s seismic regions.
Co-Authors Ahsanul Ihsan Badzlina Harvy Nesya Ernawati Radit Virdaus Salsa Fadilah Shafwan