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All Journal JURNAL JPSD (Jurnal Pendidikan Sekolah Dasar) AKSIOMA: Jurnal Program Studi Pendidikan Matematika Pedagogik : Jurnal Ilmiah Pendidikan dan Pembelajaran Fakultas Tarbiyah Unversitas Muhammadiyah Aceh Jurnal Penelitian LPPM (Lembaga Penelitian dan Pengabdian kepada Masyarakat) IKIP PGRI MADIUN AlphaMath: Journal of Mathematics Education Edu Sains: Jurnal Pendidikan Sains dan Matematika Jurnal Rekayasa Mesin Eduma : Mathematics Education Learning and Teaching Elementary: Jurnal Ilmiah Pendidikan Dasar Raheema DIDAKTIKA TAUHIDI: JURNAL PENDIDIKAN GURU SEKOLAH DASAR Jurnal Pendidikan Matematika Raflesia Premiere Educandum: Jurnal Pendidikan Dasar dan Pembelajaran GUIDENA: Jurnal Ilmu Pendidikan, Psikologi, Bimbingan dan Konseling Jurnal Cendekia : Jurnal Pendidikan Matematika MAJU : Jurnal Ilmiah Pendidikan Matematika JSHP (Jurnal Sosial Humaniora dan Pendidikan) JKPM (Jurnal Kajian Pendidikan Matematika) HUMANISMA : Journal of Gender Studies Laplace : Jurnal Pendidikan Matematika Jurnal Fundadikdas (Fundamental Pendidikan Dasar) Adi Widya: Jurnal Pendidikan Dasar Equals : Jurnal Ilmiah Pendidikan Matematika J-PiMat : Jurnal Pendidikan Matematika Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistika Journal of Mathematics Education and Science Hipotenusa: Journal of Research Mathematics Education (HJRME) Jurnal Inovasi Pembangunan HUMANISMA : Journal of Gender Studies
Suherman
Universitas Islam Negeri Raden Intan Lampung
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mathematics Mechanical Engineering Medicine & Pharmacology Neuroscience Nursing Public Health Social Sciences Transportation Other

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21ST CENTURY STEM EDUCATION: AN INCREASE IN MATHEMATICAL CRITICAL THINKING SKILLS AND GENDER Suherman Suherman; Komarudin Komarudin; Revani Husain Setiawan
Raheema Vol 9, No 1 (2022)
Publisher : PSGA LP2M IAIN Pontianak

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24260/raheema.v9i1.1585

Abstract

Enhancing the mathematical critical thinking ability in the 21st century is STEM learning. The research aims to see the mathematical skills of critical thinking between genders using STEM learning. The research method uses a quasi-experiment design 2 x 2 factorial design designs with a simple random sampling technique. Data collection techniques use a test method to see the results of the mathematical critical thinking skills of learners. Test analysis is conducted with the normality test and homogeneity testing, and the hypothesis of using two paths Anava. The research results are: (1) There are differences of STEM and conventional learning to the mathematical critical thinking skills as well as the use of STEM learning more effectively than conventional (2) there is a difference in the results of the mathematical critical thinking ability between male and female learners and the ability of the critical thinking skills of female learners to be higher than men.
Pengaruh Perbedaan Jumlah Katalis terhadap Angka Yield pada Proses Pembuatan Biodiesel dari Minyak Goreng Sisa Menggunakan Pemanas Double Jacket Suherman, Suherman; abdullah, ilmi; Sabri, Muhammad; Silitonga, Arridina Susan; Suroso, Bekti
Jurnal Rekayasa Mesin Vol 17, No 1 (2022): Volume 17, Nomor 1, April 2022
Publisher : Mechanical Engineering Department - Semarang State Polytechnic

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jrm.v17i1.3148

Abstract

Biodiesel is biodegradable and non-toxic and has a low carbon content, high lubricity, and Biodiesel is biodegradable and non-toxic and has a low carbon content, high lubricity, and higher ash point than diesel. The purpose of this study was to obtain data on the physicochemical properties of biodiesel from waste cooking oil (WCO) produced with different amounts of catalyst in the transesterification process. Methods This research carried out a two-step process: (1) esterification with an acid catalyst (H2SO4) and (2) transesterification with an alkali catalyst (KOH). The remaining frying oil is degummed by adding 2% H3PO4. Furthermore, the esterification process was carried out by adding 2% (v/v) H2SO4 at 800 rpm for 90 minutes. The transesterification process using an alkaline catalyst (KOH) was varied from 0.7-1.5% at a temperature of 60 oC with a rotation of 800 rpm and a time of 90 minutes. In the ester/transesterification process, the ratio of methanol: oil is 1:2 (v/v). The biofuels are then tested for cetane number, flash point, density, viscosity, calorific value, and others. The results showed that the amount of wet catalyst (KOH) in the transesterification process gave a difference in the yield of WCO oil. The optimum value was obtained at the amount of 1% KOH catalyst, which was 85%.
Kajian Eksperimental pada Turbin Screw Archimedes Skala Kecil Rahmawaty, Rahmawaty; Suherman, Suherman; Dharma, Surya; Sai'in, Ali
Jurnal Rekayasa Mesin Vol 17, No 1 (2022): Volume 17, Nomor 1, April 2022
Publisher : Mechanical Engineering Department - Semarang State Polytechnic

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jrm.v17i1.3065

Abstract

The number of rivers and canals in most parts of Indonesia is large enough to be developed into a micro-hydro power plant. The Archimedes srcew turbine (Archimedes scew turbine AST) has been implemented to convert hydroelectric energy since the 1990s. Many variables affect the performance of Archimedes screw turbines such as pitch ratio, immersion rate, water flow and turbine shaft angle. The purpose of this study was to determine the effect of the turbine shaft inclination angle (25-35o) on the rotation, current and voltage produced by the screw turbine. The screw turbine has a diameter of 260 mm with a shaft length of 1200 mm and a pitch distance of 200 mm. The flow rate of water is used at 0,0065 m3/s to rotate a low speed generator. The results showed that the higher the turbine shaft angle resulted in an increase in rotation, voltage and current produced. The optimum angle is obtained at a turbine angle of 35o which produces 2,058 Watts at 243 rpm.
The Development of Adolescent Academic Self-Efficacy Instruments: Analysis of Rasch Model Kurniati, Nadiya; Rusmana, Nandang; Suherman, Suherman
GUIDENA: Jurnal Ilmu Pendidikan, Psikologi, Bimbingan dan Konseling Vol 13, No 2 (2023)
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/gdn.v13i2.7310

Abstract

Academic self-efficacy is part of social cognitive theory. Academic self-efficacy is an individual's belief in the ability to do a task for achieving optimal goals. The evolution of several developments of self-efficacy instruments found in Indonesia and foreign. But, the limitation of the academic self-efficacy instrument for adolescents encourages the researcher to develop the Adolescents’ Academic Self-efficacy Instrument (AASEI).Therefore, this study aims to develop the Adolescents’ Academic Self-Efficacy Instrument (AASEI) using the RASCH measurement model. The participants in this study were 656 high school seniors aged 15-18 years. The results revealed that the Adolescents’ Academic Self-efficacy Instrument (AASEI) had a good person reliability score (0.86), excellent item reliability (0.99), and a very good Cronbach's Alpha score (0.88). The results of the Rasch analysis revealed that 42 instrument items of Adolescents’Academic Self-Efficacy Instrument fulfill the requirements and can be used to measure adolescent academic self-efficacy in Indonesia.
Pengembangan Insrumen Assertiveness Siswa Sekolah Menengah Atas (SMA): Analisis Model Rasch Raisa, Zarul; Suherman, Suherman; Yudha, Eka Sakti; Muhammad, Fadhil
GUIDENA: Jurnal Ilmu Pendidikan, Psikologi, Bimbingan dan Konseling Vol 13, No 1 (2023)
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/gdn.v13i1.6415

Abstract

His study aimed to develop an instrument that will be used to measure the assertiveness of senior high school students. This quantitative study involved 300 senior high school students in Aceh. Based on an analysis of the relevant literature, this study developed 38 items that collectively described assertiveness. Data was collected using a assertiveness scale and analyzed using the Rasch model. The results show that 1) Cronbach's alpha value is 0.83 which means the interaction between item and person is in the very good category, 2) the item reliability coefficient is 0.99 where the item belongs to the special category, and 3) the person reliability coefficient is 0.83 which means that students respond consistently to each item. Based on the results above, we can see that 37 valid items and the other is invalid. Overall, it can be concluded that the assertiveness scale has good psychometric properties, and it can be used by counselors or counseling guidance teachers to measure students' assertiveness.
The Development of Self-Direction and Self-Regulation Skills to Improve the Effectiveness of Learning of High School Students Suherman, Suherman
GUIDENA: Jurnal Ilmu Pendidikan, Psikologi, Bimbingan dan Konseling Vol 11, No 3 (2021)
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/gdn.v11i3.5137

Abstract

In the 21st century, life is packed with challenges and the search for identity in an adolescent developmental phase; high school students are faced with the demands of a constantly changing environment, open and diverse opportunities and choices, and increasingly fierce competition. Therefore, students need to have self-direction and self-regulation skills to live their lives effectively and face their future in a more directed manner. Students with inadequate self-direction and self-regulation skills can encounter many problems and developmental experience confusion, indecision, and immaturity. This study aims to discover guidance and counseling strategies to help young students develop self-direction and self-regulation skills to undergo the learning process more effectively and independently. The research and development method was used. The respondents were ten school counselors and 643 high school students in the West Java Province of Indonesia. Research produces Self-Direction and Self-Regulation Skills Development Guidelines for High School Students. These guidelines are proven effective in fostering students’ self-direction and self-regulation skills, which include: initiative, autonomy, self-regulation, and responsibility.Keywords:  adolescence; a time of crisis; self-direction skills; effective learning process Di abad 21, kehidupan penuh dengan tantangan dan pencarian jati diri dalam fase perkembangan remaja; Siswa SMA dihadapkan pada tuntutan lingkungan yang terus berubah, peluang dan pilihan yang terbuka dan beragam, serta persaingan yang semakin ketat. Oleh karena itu, siswa perlu memiliki keterampilan mengarahkan diri dan mengatur diri sendiri untuk menjalani kehidupannya secara efektif dan menghadapi masa depan mereka secara lebih terarah. Siswa dengan pengarahan diri dan keterampilan pengaturan diri yang tidak memadai dapat menghadapi banyak masalah dan mengalami kebingungan, keragu-raguan, dan ketidakdewasaan perkembangan. Penelitian ini bertujuan untuk menemukan strategi bimbingan dan konseling untuk membantu siswa muda mengembangkan keterampilan pengarahan diri dan pengaturan diri untuk menjalani proses pembelajaran secara lebih efektif dan mandiri. Metode penelitian dan pengembangan yang digunakan. Respondennya adalah sepuluh guru BK dan 643 siswa SMA di Provinsi Jawa Barat, Indonesia. Penelitian menghasilkan Pedoman Pengembangan Keterampilan Self-Direction dan Self-Regulation untuk Siswa SMA. Pedoman ini terbukti efektif dalam membina keterampilan mengarahkan dan mengatur diri siswa, yang meliputi: inisiatif, otonomi, pengaturan diri, dan tanggung jawab.Kata kunci: masa remaja; saat krisis; self-direction skills; proses belajar yang efektif
Co-Authors Aan Subhan Pamungkas Abdullah, Ilmi Achi Rinaldi Agus Jatmiko Akbar Handoko Amiruddin Amiruddin Andika Eko Prasetiyo Ani Listianingsih Anisatus Sa'adah Anisatus Saadah Anita Rahayu Pamintaningsih Arridina Susan Silitonga - Ayu Sekarsari Suharno Bambang Sri Anggoro Defriyanto Defriyanto, Defriyanto Desi Cahya Nurul Putri Dian Widi Astuti Diki Irwandi Eka Patmi Seta Eka Sakti Yudha Eka Widiyasari Eko Kuswanto Fadhil, Ahmad Fahkur Setiaji Farida, Farida Fauziyyah, Isya Feriansyah Feriansyah Fredi Ganda Putra Hariz Arifai Hasan Sastra Negara Holidun Holidun Holidun, Holidun Iip Sugiharta Istihana Istihana Kamandoko Kamandoko Khusnul Hamidah KOMARUDIN Kurniati, Nadiya Laila Puspita M. Syaif Amrullah Alqusyairi Mardiyah Masykur, Rubhan Mu'min Firmansyah Muhammad Sabri Muhammad Sholeh Muhammad, Fadhil Mujib Mujib Nanang Supriadi Nandang Rusmana Netriwati Nirva Diana Nova Nindarti Novi Rosmawati Novia Dwi Rahmawati Novia Dwi Rahmawati Nur Sa’adah Nuriza Siregar Okis Fatimah Oktavia Irma Pratama Pratama, Oktavia Irma Purwoko, Agus Rahma Sari Ningtias Rahmawaty, Rahmawaty Raisa, Zarul Ratna Wati Revani Husain Setiawan Rifky Hidayat Rizki Wahyu Yunian Putra Rosida Rakhmawati Rubhan Masykur Ruhban Masykur Safitri, Julia Dwi Sai'in, Ali Sari Arfina Silvi Riswati Siti Anggi Wulandari Sofwan Zulfikar Suherman Suherman Suroso, Bekti Surya Dharma Suyadi, Suyadi Syamsul Huda Syofnidah Ifriyanti Taza Nur Utami Teguh Yunianto Tia Agnesa Utami, Taza Nur Yovi Imeysa