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All Journal BIOTIK: Jurnal Ilmiah Biologi Teknologi dan Kependidikan Fraktal: Jurnal Matematika dan Pendidikan Matematika Journal of ICT, Design, Engineering and Technological Science
Arif Usman
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Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Electrical & Electronics Engineering Engineering Mathematics Mechanical Engineering

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PENINGKATAN PENGETAHUAN DAN KETERAMPILAN PROSES SAINS BERBASIS PRAKTIKUM MELALUI REPRODUKSI VEGETATIF BUDIDAYA TANAMAN PADA SISWA SMA NEGERI 1 PULO ACEH KABUPATEN ACEH BESAR. Nurdin Amin; Mulyadi Mulyadi; Samsul Kamal; Rizky Ahadi; Alfida Alfida; Arif Usman
Biotik Vol 8, No 2 (2020): JURNAL BIOTIK
Publisher : Universitas Islam Negeri Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/biotik.v8i2.8040

Abstract

Praktikum merupakan bagian dari Keterampilan Proses Sain (KPS). Melalui kegiatan praktikum diharapkan dapat memudahkan peserta siswa dalam  memahami konsep-konsep  sains dengan  cara  membuktikan  dan  menguji kebenarannya. Salah satu materi yang dipelajari adalah reproduksi vegetatif pada tanaman. SMA Negeri 1 Pulo Aceh Kabupaten Aceh Besar merupakan salah satu lembaga pendidikan yang berperan aktif dalam menerapkan kegiatan praktikum. Desain penelitian yang digunakan dalam penelitian ini adalah Pre-Experimental yang dipilih adalah One Group Pret-est Post-test, dimana observasi dilakukan sebanyak 2 kali yaitu sebelum eksperimen dan setelah eksperimen. Penilaian dilakukan dengan intrumen tes dan lembar observasi. Hasil belajar siswa yang diukur melalui soal tes nilai pre-tes dari 24 siswa adalah 35,21 dengan kriteria “kurang”, nilai siswa atau post-tes  adalah 80,63 dengan kriteria “baik”. rata-rata nilai N-Gain Score 0,7 dengan kriteria “sedang”, nilai tersebut didapatkan dari pre-tes dan pos-test yang dilakukan kepada siswa setelah kegiatan praktikum. Sedangkan nilai persentase N-Gain Score (%) adalah 69,95 % dengan kriteria cukup efektif. Keterampilan Proses Sains yang sering muncul atau sering terlaksana oleh peserta siswa yaitu rata-rata sebesar 2,98 sehingga diperoleh persentasenya 74,5%.
Kemampuan Literasi Matematika Siswa dengan Gaya Belajar Kinestetik Fitria Sulistyowati; Istiqomah Istiqomah; Betty Kusumaningrum; Krida Singgih Kuncoro; Tiara Pramudianti; Arif Usman
Fraktal : Jurnal Matematika dan Pendidikan Matematika Vol 2 No 2 (2021): November 2021
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (526.34 KB) | DOI: 10.35508/fractal.v2i2.5628

Abstract

This research is a descriptive study with a qualitative approach that aims to describe the mathematical literacy ability of students with kinesthetic learning styles. The subject in this study was a fifth-grade elementary school (SD) student with a kinesthetic learning style. Data were collected using documentation, interviews, and observation. Data analysis techniques used in this research are data reduction, data presentation, verification, and decision. This study gives the results that: (1) the level of mathematical literacy ability of the research subjects is at the Cakap level and needs to be given proper learning, namely problem-based learning; (2) some calculation notations are not proper so that it is necessary to strengthen problem-solving procedures so that there are no errors in strategy selection. The results of this study are expected to be used as a reference for further research related to students' mathematical literacy skills with kinesthetic learning styles.
Synergic Influence of River Gravels and Crushed Aggregates on the Mechanical Properties of Concrete Arif Usman; Muhammad Haris Javed; Farhan Abbas; Faraz Ali Channa; Sami Ullah
Journal of ICT, Design, Engineering and Technological Science Volume 7, Issue 1
Publisher : Journal of ICT, Design, Engineering and Technological Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33150/JITDETS-7.1.4

Abstract

The study aims to replace crushed aggregate with river gravel and analyze the results of both the concrete, and compare them with each other. From the comparison, it was found that the workability of concrete was high about 19% when river gravel was used in concrete and was low when crushed aggregate was used in concrete. On the other side, the combination of both Quarry and river gravel was found to be 36% less workable than river gravel. This was because of the crushed used with river gravel crush aggregate has a greater surface and diamond cut. Comparing the Compressive strength of Quarry, gravel, and the combination of both it was observed that on average Quarry and Gravel combination concrete was 20 % stronger than concrete with quarry crushed used as aggregate and 10 % stronger than river gravel. The river gravel can be used as aggregate in concrete in a lighter structure or foundation to provide a hard and level surface.
Co-Authors Alfida Alfida Betty Kusumaningrum Faraz Ali Channa Farhan Abbas Fitria Sulistyowati Krida Singgih Kuncoro Muhammad Haris Javed Mulyadi Mulyadi Nasution, Annio Indah Lestari Ni Luh Ari Yusasrini Nurdin Amin Rizky Ahadi Sami Ullah Tiara Pramudianti