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All Journal Journal of Education and Learning (EduLearn) CHEMPUBLISH JOURNAL Jurnal Manajemen Pendidikan Penelitian Kualitatif Martabe : Jurnal Pengabdian Kepada Masyarakat Jurnal Pijar MIPA
Lenny Anwar
Universitas Riau
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Library & Information Science Mathematics Physics Social Sciences Other

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Interactive e-module using Zoom Cloud Meeting platform to reduce misconceptions on salt hydrolysis material Maria Erna; Lenny Anwar; Mazidah Mazidah
Journal of Education and Learning (EduLearn) Vol 15, No 2: May 2021
Publisher : Intelektual Pustaka Media Utama

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (385.241 KB) | DOI: 10.11591/edulearn.v15i2.18460

Abstract

This study aimed to determine the effectiveness of using an interactive e-module to reduce students’ misconceptions on salt hydrolysis material at grade XI in senior high school. This study implemented a pre-experiment with one group pretest-posttest research design, which utilized one class as the experimental class. Samples were selected by using purposive sampling technique, and it was obtained one class as the experimental class, namely class XI in State Madrasah Aliyah 1 Pekanbaru, Riau, Indonesia. Before giving the treatment, the sample was administered a pretest and after the treatment, they were given a posttest. The pretest and posttest questions occupied three-tier multiple choice questions. The reduction of misconceptions on Salt Hydrolysis material after using the interactive e-module was 16.21%. The study found that interactive e-modules effective to reduce misconceptions on salt hydrolysis material was significant.
Potensi metabolit sekunder produksi bakteri endofit dari tumbuhan laban (Vitex pubescens Vahl) sebagai antikanker Lenny Anwar; Dedi Futra
CHEMPUBLISH JOURNAL Vol. 4 No. 2 (2019): Chempublish Journal
Publisher : Universitas Jambi, Fakultas Sains dan Teknologi, Program Studi Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/chp.v4i2.7937

Abstract

Peran mikroba endofit dalam memproduksi metabolit sekunder dengan kualitas yang hampir sama dengan tanaman aslinya sangat potensial untuk dikembangkan. Penelitian ini bertujuan untuk menyelidiki bakteri endofit yang terdapat didalam jaringan kulit batang Laban (Vitex pubescens Vahl) serta kemampuannya untuk memproduksi metabolit bioaktif yang mempunyai aktivitas sitotoksik. Dalam penelitian ini digunakan teknik inokulasi langsung dengan jalan meletakkan sampel tanaman di atas permukaan Nutrient Agar (NA). Metoda Micro tetrazolium (MTT) digunakan untuk menetapkan aktivitas sitotoksik dari ekstrak etilasetat. Bakteri endofit yang berhasil diisolasi sebanyak 3 isolat yaitu Bakteri-2A, Bakteri -3B dan Bakteri-6C. Berdasarkan hasil penapisan dari 3 isolat tersebut didapatkan dua bakteri yang memiliki aktivitas potensial yang baik terhadap sel serviks (HeLa) yaitu isolat Bakteri – 6C (IC50 = 82.54 µg/mL) dan Bakteri-2A (IC50 = 297.09 µg/mL). Isolat yang menunjukkan aktivitas sitotoksik terbesar adalah isolat Bakteri-6C sehingga dapat disimpulkan bahwa isolat tersebut merupakan isolat yang paling potensial sebagai penghasil senyawa antikanker.
Development of student worksheet based on MEA model of ionic equilibrium and pH of buffer solution for Senior High School Nelda Nelda; Betty Holiwarni; Lenny Anwar
Jurnal Pijar Mipa Vol. 17 No. 1 (2022): January 2022
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (215.352 KB) | DOI: 10.29303/jpm.v17i1.2383

Abstract

This research aims to develop a Student Activities Worksheet Based on the MEA Model on the ionic equilibrium and pH of buffer solution material for grade XI SMA/MA. Student Worksheet Based are designed according to the stage of the MEA learning model. The type of this research is research and development (R and D) about the development process of 4-D. The object of this research is student activities worksheets based on MEA. The data collection is the validation user response questionnaire. The validity of the content aspect obtained the result of data analysis, characteristics of MEA, language aspect, serve aspect, and visual aspect are 96.43%, 93.33%, 85.41%, 97.22%, 97.91% with valid category. Student activities worksheets validated by the validators tested to 25 students and three teachers. The test responses by 25 students and three chemistry teachers included very good criteria, with each score of 95% and 80.33%. Based on the result of data analysis, student activities worksheets based on MEA of ionic equilibrium and pH of a buffer solution produced are valid.
ANALISIS KEMAMPUAN TPACK GURU KIMIA DI KUANTAN SINGINGI DAN KOTA PEKANBARU Amlen Sutrisno; Jimmi Copriady; Lenny Anwar
Jurnal Manajemen Pendidikan Penelitian Kualitatif Vol 7, No 1 (2023)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jmppk.7.1.p.11-20

Abstract

The research results are presented based on gender, certification status, work location, and work years. Based on gender, male teachers have slightly better TPACK abilities than female teachers. Based on certification status, the TPACK ability of certified teachers is better than teachers who are not certified. Based on work location, teachers in Pekanbaru City are better than teachers in Kuantan Singingi Regency. Based on years of service, teachers with 20 years of service are teachers who have very good TPACK abilities.
PELATIHAN PEMBUATAN BUKU DIGITAL BERBASIS FLIPBOOK MAKER UNTUK GURU-GURU DI KECAMATAN TIGA BELAS KOTO KAMPAR KABUPATEN KAMPAR Abdullah Abdullah; Rasmiwetti Rasmiwetti; Sri Haryati; Jimmi Copriady; Lenny Anwar; Fitri Aldresti; Tiara Swastika Putri
Martabe : Jurnal Pengabdian Kepada Masyarakat Vol 6, No 4 (2023): Martabe : Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jpm.v6i4.1220-1229

Abstract

Proses pembelajaran pada revolusi 4.0 saat ini menuntut proses pembelajaran secara bertahap dapat beralih dari pembelajaran tradisional tatap muka ke penggunaan teknologi informasi sesuai dengan kecepatan perkembangan teknologi yang pesat. Proses pembelajaran yang baik  didukung oleh sumber dan bahan belajar  yang berkualitas. Contoh yang termasuk bahan ajar adalah buku. Kualitas buku  ditunjukkan dari isi dan paket penyajian buku tersebut, sehingga buku tersebut  lebih berkualitas dan dapat membangkitkan minat belajar/membaca siswa. Perkembangan teknologi informasi terkini dapat mengubah paradigma dari menggunakan buku cetak menjadi menggunakan buku digital dengan  isi yang lebih berkualitas, tampilan/presentasi yang lebih menarik, lebih interaktif dan lebih murah. Ada beberapa aplikasi untuk membuat buku digital yang dapat digunakan secara baik  bagi pemula maupun profesional yaitu Kvisoft Flipbook Maker. Berbagai aplikasi yang dapat digunakan dalam mengembangkan buku digital antara lain 3D Pageflip Professional. Keterampilan TIK para guru di Kecamatan Kuok terbilang cukup baik. Hal ini membuktikan bahwa sebagian besar guru memiliki jejaring sosial yang dapat mereka akses dari smartphone atau laptop pribadinya. Namun keterampilan tersebut tidak mereka gunakan dalam proses pembelajaran menggunakan teknologi di kelas karena guru masih terbatas dalam menggunakan smartphone atau laptop sebagai media pembelajaran di kelas. Prodi Pendidikan Kimia Universitas Riau menyediakan platform berupa pembuatan buku digital berbasis flipbookmaker bagi para guru di Kecamatan Kuok sebagai bentuk pengabdian kepada masyarakat. Pada saat pelatihan beberapa guru sudah dapat menggunakan media Flipbook Maker. Namun, sebagian lainnya masih terkendala gangguan sinyal internet sehingga guru belum bisa menggunakan media Flipbook Maker saat kegiatan  pelatihan ini.
BLENDED LEARNING BERBANTUAN GOOGLE CLASSROOM UNTUK MENINGKATKAN KEMAMPUAN BERPIKIR KRITIS PESERTA DIDIK PADA MATERI KESETIMBANGAN Ion DAN pH LARUTAN PENYANGGA Teja Pratama Putra; Maria Erna; Lenny Anwar
Jurnal Manajemen Pendidikan Penelitian Kualitatif Vol 7, No 1 (2023)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jmppk.7.1.p.21-29

Abstract

The purpose of this study was to determine the improvement of students' critical thinking skills on ion equilibrium and pH buffer solution material through the application of Blended Learning assisted by Google Classroom. The research was conducted in one of the high schools in Pekanbaru City, class XI MIPA in the even semester of the 2022/2023 school year. This research is an experimental research with a research design in the form of Randomized Control Group Pretest-Posttest Design. From the existing population, there are samples in the experimental class (36 students) and the control class (33 students). The results of the research statistical test (One Tailed t-Test) show that the hypothesis is accepted with tcount 2.07> ttable 1.67 (dk = 67, α = 0.05). Indications of an increase in students' critical thinking skills due to the implementation of a combination of conventional class learning and virtual classes that build students to think more fluently, not fixated, active, creative, interactive and not bored during the learning process.
Co-Authors Abdullah Abdullah Amlen Sutrisno Betty Holiwarni Dedi Futra Fitri Aldresti Jimmi Copriady Maria Erna Mazidah Mazidah Nelda Nelda Rasmiwetti Rasmiwetti Sri Haryati Teja Pratama Putra Tiara Swastika Putri