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All Journal Edu-Sains: Jurnal Pendidikan Matematika dan Ilmu Pengetahuan Alam Inspiratif Pendidikan Jurnal Riset Kimia Jurnal SAINTIKOM (Jurnal Sains Manajemen Informatika dan Komputer) Edu Research : Jurnal Penelitian Pendidikan Jurnal Pengabdian Masyarakat dan Riset Pendidikan
Rayandra Asyhar
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Religion Humanities Chemistry Computer Science & IT Education Languange, Linguistic, Communication & Media Mathematics Social Sciences Other

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PENGARUH SUHU DAN WAKTU AKTIVASI TERHADAP KAPASITAS ADSORPSI KOKAS MINYAK BUMI Rayandra Asyhar; Nofrizal Jon
Jurnal Riset Kimia Vol. 1 No. 2 (2008): March
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v1i2.64

Abstract

 ABSTRACT The effect of activation temperature and duration on the activity of petroleum coke has been investigated. A mixture of green coke and KOH (1:1) was heated in an oven furnace at 450°C for 1 h, then continued to activation process at 450-900°C for 1-3 h. The product mixture was immersed in a solution of 10% H2SO4 before being washed with deionized water to neutral pH. After being dried, activated cokes were tested with a solution of phenol, 4-nitrophenol, 2,4-dinitrophenol or methylen blue. Experimental data showed that the activity of coke imcreased with temperature and time. The effective condition of the activation process is at temperatures higher than 750°C and activation time of longer than 1,5 h. Adsorptive behavior of phenolics dan metylene blue onto activated coke agreed with Langmuir rather than with Freundlich isotherm.  Keywords: temperature effect, activation time, petroleum coke, adsorption capacity, phenolics, methylen blue. 
Pengembangan Modul Pembelajaran Audio Visual dengan Teknik Lagu untuk Siswa Kelas X SMAN 1 Muara Jambi pada Materi Sistem Periodik Unsur Ilsya Martini; Risnita Risnita; Rayandra Asyhar
Edu-Sains: Jurnal Pendidikan Matematika dan Ilmu Pengetahuan Alam Vol. 4 No. 1 (2015): Januari 2015
Publisher : Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (257.001 KB) | DOI: 10.22437/jmpmipa.v4i1.2366

Abstract

Research and this development is resulted interactive module to design materials the Elements of Periodic System to improve students’ understanding by the concept of materials the Elements of Periodic System. Using the result of the development of materials the Elements of Periodic System makes effective learning base on responsiveness and knowledge of students. To test the feasibility this Audio-Visual Modules made on the basis of expert validation and testing of products in Grade Ten Science Class. Research and development of audio-visual modules by using this song technique is adapted from Lee & Owens with grooves Analysis, Design, Development, Implementation, and Evaluation. The result of tests on the large groups, the skill of the students increased from 74.50 to 88.50 equal with 12%. The result of interviews showed that students responded very positively for an increased understanding by using song technique.
Pengembangan Instrumen Evaluasi pada Praktikum Uji Enzim Katalase di SMA Negeri Titian Teras Muaro Jambi M. Erik Sanjaya; Rayandra Asyhar; Bambang Hariyadi
Edu-Sains: Jurnal Pendidikan Matematika dan Ilmu Pengetahuan Alam Vol. 4 No. 2 (2015): Juli 2015
Publisher : Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jmpmipa.v4i2.2529

Abstract

The requirement for evaluation instruments learning outcomes authentically need to be done to get description totality about the student competence, when carry out biology experiment activity on katalase enzyme subject matter. This sudy aims to produce the final product in the form of an evaluation instrument for catalase enzyme experiment test. Development model adopted in this study is ADDIE model. Based on the results of expert judgement, the instrument was valid and can be tested in classroom. The results of the expert validation, evaluation instrument found that the enzyme catalase experiment test has appropriated entirety, in terms of the content aspect, constructs, linguistic, and practicalities. The test results were showed that the instrument has high realiability and validity for all student competency. Therefore, the conclusion is this evaluation instrument theority and rasionally that good and valid to use for measuring and considering all student competency for catalase enzyme experiment test.
Pengaruh Model Inquiry Training dan Berpikir Kritis Terhadap Kemampuan Berpikir Ilmiah Mahasiswa pada Mata Kuliah Kimia Dasar Rita Syafitri; Rayandra Asyhar; Asrial Asrial
Edu-Sains: Jurnal Pendidikan Matematika dan Ilmu Pengetahuan Alam Vol. 5 No. 1 (2016): Januari 2016
Publisher : Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jmpmipa.v5i1.2849

Abstract

This study was based on less varied learning model used in chemistry and to practice thinking skills that students can apply the concepts to solve chemical problems. It was done to try out the inquiry training model. The research instruments were used to measure dependent variable which is scientific thinking. Two learning models were applied: inquiry training model applied on the experiment group and lecture method applied on the control group. Critical thinking as the moderator variable that was measured through the critical thinking tests. The experimental research used  2 x 2 factorial design 8 meeting. The data were analyzed using two ways Anova and Tuckey test. The study concluded that: 1) There are differences of the scientific thinking skills between the inquiry training model and the lecture method learning model. 2) There is a significant difference of the scientific thinking skills between low and high level of critical thinking skills. 3) There are differences of scientific thinking skills of low levels critical thinking students between students who were taught by inquiry training model and that of by lecture learning method. 4) There are differences in scientific thinking skills among the group of students who had high level of critical thinking taught by inquiry training model and lecturing learning model. 5) There is no interaction between the application of inquiry training model to the level of critical thinking to the students scientific thinking skills.
Pengembangan Instrumen Penilaian Berbasis Pendekatan Saintifik Kelas IV SD Muatan IPA pada Subtema Hewan dan Tumbuhan di Lingkungan Rumahku Yetty Fatri Dewi; Rayandra Asyhar; Bambang Hariyadi
Edu-Sains: Jurnal Pendidikan Matematika dan Ilmu Pengetahuan Alam Vol. 5 No. 1 (2016): Januari 2016
Publisher : Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jmpmipa.v5i1.2852

Abstract

The purpose of this study was to develop an instrument to measure the knowledge and skills of fourth grade students in conducting scientific activities on the sub-theme of animals and plants around my house. The instrument consists of a number of items that lead the students to scientific activities (e.g.observe, ask, gather information, process and communicate information) that is equipped by a scoring rubric. The development model used is a model 4-D consists of 4 stages, namely define, design, develop, and desimanate. The validation and limited testing result shows that the scientific approach based-assessment instrument is feasible to use. The developed instruments can be used to evaluate the learning process and assists teachers in developing the competences of the students’s knowledge and skills in conducting scientific activities.
Konstruksi dan Validasi Model Desain Pembelajaran Berbasis Masalah untuk Mengembangkan Kreativitas Siswa Ika Kartikasari; M. Rusdi; Rayandra Asyhar
Edu-Sains: Jurnal Pendidikan Matematika dan Ilmu Pengetahuan Alam Vol. 5 No. 1 (2016): Januari 2016
Publisher : Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jmpmipa.v5i1.2855

Abstract

The aims of this research are to construct and validate an instructional design model that incorporates the theory and practice of Problem-Based Learning (PBL) approach and provides a framework for the internal validation of instructional design model using expert and practitioners review procedures. The research consisted of three phases. In phase one, the theoretical foundations of Problem-Based Learning (PBL) approach and instructional design were examined to guide the development of such model. In phase two, the model components were determined and an initial model was constructed. In phase three, the model was reviewed and validated by expert and practitioners in the field of instructional design through a three-round Delphi study. The result was a revised and validated Problem-Based Instructional Design Model to develop students’ creativity and provide the process of the internal validation of instructional design model.
Pengembangan Instrumen Penilaian Kinerja pada Praktikum Struktur dan Fungsi Sel Di SMA Negeri 1 Kota Jambi Nugroho Budhiwaluyo; Rayandra Asyhar; Bambang Hariyadi
Edu-Sains: Jurnal Pendidikan Matematika dan Ilmu Pengetahuan Alam Vol. 5 No. 2 (2016): Juli 2016
Publisher : Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (243.885 KB) | DOI: 10.22437/jmpmipa.v5i2.3387

Abstract

  This research aims to produce a final product in the form of a performance-assessment instrument on Cell Structure and Function experiment. The development model is ADDIE. Based on expert's judgment, the instrument was valid and can be tested in the field. Field-test results shown that the product performs high validity and reliability value on measuring student performance on Cell Structure and Function experiment. Therefore, it is concluded that this performance-assessment instrument theoretically and practically has a good quality for measuring student performance in both process and product performance on Cell Structure and Function experiment. Keywords: Development, Performance-Assessment Instrument, Cell Structure and Function Experiment 
Pengaruh Penerapan Model Pembelajaran Group Investigation dan Motivasi Terhadap Hasil Belajar Siswa Kela VII SMP Dalam Pembelajaran IPA Terpadu Pada Materi Asam, Basa dan Garam Susy Pransiska; Rayandra Asyhar; Asrial Asrial
Edu-Sains: Jurnal Pendidikan Matematika dan Ilmu Pengetahuan Alam Vol. 5 No. 2 (2016): Juli 2016
Publisher : Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (268.122 KB) | DOI: 10.22437/jmpmipa.v5i2.3390

Abstract

This research aimed to determine the effect of group investigation learning  model and motivation on the students' learning result. The research employed a quasi experimental research with nonrandomized control group pretest-posttest design. The research used factorial design of 2x2. The population of this research was the first semester of seventh grade students. The sample used VII A and VII B class, samples were taken by using purposive sampling. The learning result data measured using of the tests and motivation data using of questionnaires. The data are analyzed using two-way(s) ANOVA. Test analysis showed that difference between post-test score of experiment class were higher than the control class. Based on the result, it can be concluded that: 1) the implementation of the group learning model investigation affect the students’ learning result, 2) motivation also influences the student learning result. 3) There is no interaction between the group investigation learning  model and motivation on the students' learning achievement.   Keywords: Group Investigation, Motivation and Learning Result.
Pengembangan Lembar Kegiatan Siswa (LKS) IPA Berbasis Pendekatan Saintifik pada Materi Listrik Dinamis Kelas IX SMP Rosderia Purba; Rayandra Asyhar; Muhammad Rusdi
Edu-Sains: Jurnal Pendidikan Matematika dan Ilmu Pengetahuan Alam Vol. 5 No. 2 (2016): Juli 2016
Publisher : Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (351.671 KB) | DOI: 10.22437/jmpmipa.v5i2.3391

Abstract

The purpose of this developmental research was to develop a scientific approach based science worksheet on the dynamic electrical material topic for ninth-grade junior high school students. The worksheet were developed based on scientific approach. The stages include: observing, asking questions, gathering information, processing information, and communicating. The development model used is the 4-D Model consists of 4 stages: define, design, develop, and desimanate. The results of the validation, a small and large group trials indicated that the used of the scientific approach based science worksheet was appropriate for use. Thus, the developed worksheets can be used in the process of learning for Junior high school science students. Keywords : Worksheet , Scientific approach
Pengembangan Rencana Pelaksanaan Pembelajaran Berbasis Kearifan Lokal dengan Model Problem Based Learning (PBL) pada Materi Usaha dan Pesawat Sederhana di SMPN Kota Jambi M. Habibie; Rayandra Asyhar; Bambang Hariyadi
Inspiratif Pendidikan Vol 13 No 1 (2024): JUNE
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/ip.v13i1.48353

Abstract

This study aims to develop a local wisdom-based learning implementation plan for businesses and simple machines. The lesson plan is a tool used by teachers to carry out learning inside or outside of school. The development model used is the 4D development model, which consists of define, design, develop, and disseminate stages. and disseminate. This local wisdom-based learning tool can be used as a problem context to explore science concepts, especially in junior high schools. RPP media expert validation got a maximum score of 72 out of 90 and was in the interval 76–90 with the category "Very Good" with an average of 4 and a percentage of 80%. And the validation of lesson plan material experts gets a maximum score of 87 out of 100 and is in the interval 88–100 with the "Very Good" category with an average of 4.35 and a percentage of 87%.
Co-Authors Agun Sutrianto Aryani, Reni Asrial Bambang Hariyadi Epinur Ika Kartikasari Ilsya Martini Isramiharti Isramiharti M. Erik Sanjaya M. Habibie M. Rusdi Mayora Febsi Khairatul Mochammad Farisi Muhammad Rusdi Nofrizal Jon Nugroho Budhiwaluyo Rahmi Rinda Dwi Audia Risnita Risnita Rita Syafitri Rizqa Raaiqa Bintana Rosderia Purba Susy Pransiska Utomo, Pradita Eko Prasetyo Wulan Gontina Yetty Fatri Dewi