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All Journal Jurnal Riset dan Kajian Pendidikan Fisika JPS Unimus EduChemia: Jurnal Kimia dan Pendidikan PENA SAINS Phenomenon : Jurnal Pendidikan MIPA Edu Sains: Jurnal Pendidikan Sains dan Matematika Indonesian Journal of Science and Education Jurnal Penelitian Pendidikan IPA (JPPIPA) Al-Kimia Formatif: Jurnal Ilmiah Pendidikan MIPA Walisongo Journal of Chemistry Indonesian Journal of Biology Education JURNAL PENDIDIKAN MIPA Jurnal Inovasi Teknik Kimia Indonesian Journal of Natural Science Education ABDIPRAJA (Jurnal Pengabdian kepada Masyarakat) Sulawesi Tenggara Educational Journal J-ABDIPAMAS (Jurnal Pengabdian Kepada Masyarakat) Jurnal Pengabdian KOLABORATIF Indonesian Journal of Science and Education
Riva Ismawati
Universitas Tidar
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Environmental Science Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mathematics Physics Public Health Social Sciences Other

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Persepsi mahasiswa terhadap skenario pembelajaran problem based learning Trisnowati, Eli; Ismawati, Riva
Jurnal Riset dan Kajian Pendidikan Fisika Vol 5, No 2 (2018): Oktober 2018
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (204.361 KB) | DOI: 10.12928/jrkpf.v5i2.10431

Abstract

Model pembelajaran problem based learning merupakan salah satu model pembelajaran yang digunakan dalam pembelajaran abad 21. Keterlaksanaan proses pembelajaran dapat dilihat dari kesiapan guru dan peserta didik. Kesiapan peserta didik dapat dilihat dari persepsinya terhadap model pembelajaran tersebut. Artikel ini mengkaji tentang persepsi mahasiswa terhadap skenario pembelajaran menggunakan model pembelajaran problem based learning. Penelitian ini menggunakan metode deskriptif kuantitatif. Persepsi mahasiswa dilihat dari tiga aspek yaitu kesiapan, minat, dan profil pembelajaran. Persepsi mahasiswa tentang kepercayaan diri dan partisipasi aktif mahasiswa bukan dipengaruhi oleh model pembelajaran yang digunakan tetapi lebih dipengaruhi oleh materi yang dipelajari. Persepsi minat mahasiswa terhadap pelaksanaan PBL cukup baik dan persepsi mahasiswa terhadap profil pembelajaran PBL sangat baik. Persepsi mahasiswa terhadap profil pembelajaran sudah sangat baik, hanya saja pada tahapan orientasi masalah dan evaluasi terhadap proses penyelesaian masalah perlu ditingkatkan karena tahapan ini merupakan salah satu tahapan yang penting dalam model pembelajaran problem based learning. Problem-based learning model is one of the learning models used in the 21st-century learning process. The implementation of the learning process can be seen from the readiness of the teacher and students. Readiness can be seen from their perceptions of the learning model. This article examines the students perception of learning scenarios using problem-based learning. This research uses the quantitative descriptive method. Student perceptions showed three aspects: readiness, interest, and learning profile. Student perceptions about self-confidence and participation not only influenced by using the model but also influenced by the content of the material. The perception of student interest in PBL implementation is good and students perception of the PBL learning profile is very good. Student perceptions of the learning profile have been very good, only at the stage of problem orientation and evaluation of the problem-solving process needs to be improved.
STRATEGI REACT DALAM PEMBELAJARAN KIMIA SMA Riva Ismawati
Indonesian Journal of Science and Education (IJOSE) Vol 1, No 1 (2017): Indonesian Journal of Science and Education
Publisher : Fakultas Keguruan dan Ilmu Pendidikan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (421.825 KB) | DOI: 10.31002/ijose.v1i1.413

Abstract

Materi kimia SMA dirasa sulit untuk dipahami karena memuat konsep yang dianggap bersifat teoritis, abstrak, dan tidak nyata. Akibatnya, kegiatan pembelajaran kimia di kelas kurang bermakna. Kegiatan pembelajaran kimia perlu diarahkan pada kegiatan aktif siswa dengan mengaitkan materi pembelajaran dengan situasi nyata. Artikel ini merupakan gagasan mengenai penerapan strategi pembelajaran REACT. Strategi REACT merupakan implementasi pendekatan pembelajaran kontekstual melaui tahap-tahapannya yaitu relating (mengaitkan), experiencing (mengalami), applying (menerapkan), cooperating (bekerja sama), transferring (memindahkan). Hasil kajian mendorong guru untuk merencanakan dan menerapkan kegiatan pembelajaran aktif menggunakan strategi REACT.   Kata Kunci: pembelajaran aktif, pembelajaran contextual, strategi REACT
Instilling The Conservation Character Through Reconstruction of Scientific Knowledge Based on Local Wisdom Riva Ismawati; Eko Juliyanto; Setiyo Prajoko; Eva Rahayuningsih
Indonesian Journal of Science and Education (IJOSE) Vol 4, No 1 (2020): INDONESIAN JOURNAL OF SCIENCE AND EDUCATION
Publisher : Fakultas Keguruan dan Ilmu Pendidikan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (666.918 KB) | DOI: 10.31002/ijose.v4i1.1434

Abstract

The purpose of this study is to reconstruct scientific knowledge based on local wisdoms of the Ngargomulyo village people in preserving the environment as a means to instill and enhance the conservation caracter for prospective science teachers. The research is a qualitative study of ethnosains, which means the study of an organized system of knowledge from the culture and local wisdoms of a community. The research subjects are the residents of Ngargomulyo village. The focus of the research is the value of environmental preservation which is manifested in the behavior patterns of the people of Ngargomulyo village. The data collection is done through interviews and in-depth observation. The data obtained is then verified, reconstructed, formulated, and conceptualized into the scientific knowledge. The results of the study indicate that efforts made by the people to preserve the surrounding environment are manifested in farming, raising livestock, forest activities, and sand and stone mining activities. In addition, the activities to protect the environment for natural conservation are also evident from the efforts to maintain spring water sources. The environmental preservation messages are also found on some boards installed in certain places.Keywords: conservation character, local wisdoms, Ngargomulyo village
Komposit Kitosan-Zeolit : Potensi Pemanfaatannnya sebagai Adsorben CO2 Riva Ismawati; Setiyo Prajoko
Al-Kimia Vol 6 No 1 (2018): JUNE
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/al-kimia.v6i1.4645

Abstract

The world has paid special attention to the increasing of CO2 concentrations in the atmosphere. In climate change issue, CO2 gas as part of greenhouse gases plays an important role in controlling earth surface temperature. Several CO2 gas capture techniques have been reported. However, information on the utilization of potential natural materials as CO2 adsorbents is still small. This study aims to determine the potential of chitosan zeolite composites as CO2 adsorbents. Various literature is used to analyze the properties of zeolites, chitosan and the potential of chitosan- zeolite composites as CO2 adsorbents. The results show the possibility of utilizing zeolite-chitosan composites as CO2 adsorbents. 
Persepsi mahasiswa terhadap skenario pembelajaran problem based learning Eli Trisnowati; Riva Ismawati
Jurnal Riset dan Kajian Pendidikan Fisika Vol 5, No 2 (2018): Oktober 2018
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (204.361 KB) | DOI: 10.12928/jrkpf.v5i2.10431

Abstract

Model pembelajaran problem based learning merupakan salah satu model pembelajaran yang digunakan dalam pembelajaran abad 21. Keterlaksanaan proses pembelajaran dapat dilihat dari kesiapan guru dan peserta didik. Kesiapan peserta didik dapat dilihat dari persepsinya terhadap model pembelajaran tersebut. Artikel ini mengkaji tentang persepsi mahasiswa terhadap skenario pembelajaran menggunakan model pembelajaran problem based learning. Penelitian ini menggunakan metode deskriptif kuantitatif. Persepsi mahasiswa dilihat dari tiga aspek yaitu kesiapan, minat, dan profil pembelajaran. Persepsi mahasiswa tentang kepercayaan diri dan partisipasi aktif mahasiswa bukan dipengaruhi oleh model pembelajaran yang digunakan tetapi lebih dipengaruhi oleh materi yang dipelajari. Persepsi minat mahasiswa terhadap pelaksanaan PBL cukup baik dan persepsi mahasiswa terhadap profil pembelajaran PBL sangat baik. Persepsi mahasiswa terhadap profil pembelajaran sudah sangat baik, hanya saja pada tahapan orientasi masalah dan evaluasi terhadap proses penyelesaian masalah perlu ditingkatkan karena tahapan ini merupakan salah satu tahapan yang penting dalam model pembelajaran problem based learning. Problem-based learning model is one of the learning models used in the 21st-century learning process. The implementation of the learning process can be seen from the readiness of the teacher and students. Readiness can be seen from their perceptions of the learning model. This article examines the students' perception of learning scenarios using problem-based learning. This research uses the quantitative descriptive method. Student perceptions showed three aspects: readiness, interest, and learning profile. Student perceptions about self-confidence and participation not only influenced by using the model but also influenced by the content of the material. The perception of student interest in PBL implementation is good and students' perception of the PBL learning profile is very good. Student perceptions of the learning profile have been very good, only at the stage of problem orientation and evaluation of the problem-solving process needs to be improved Kata kunci: persepsi, skenario pembelajaran, problem based learning
Penurunan Kadar Besi Air Sumur Gali dengan Menggunakan Mn-Zeolit Riva Ismawati; M. Najib Ngirfani; Ambar Rinarni
EduChemia (Jurnal Kimia dan Pendidikan) Vol 3, No 2 (2018)
Publisher : Department of Chemical Education Faculty of Teacher Training and Education Universitas Su

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (927.246 KB) | DOI: 10.30870/educhemia.v3i2.2250

Abstract

Abstrak: Penurunan kadar besi pada air sumur gali dengan menggunakan Mn-Z telah dilakukan. Mn-Z dipreparasi dengan merendam zeolit (d=2-3mm) yang telah dicuci bersih dengan aquades dalam larutan KMnO4 konsentrasi % b/v selama waktu tertentu. Sintesis Mn-Z dilakukan dengan memvariasikan waktu perendaman zeolit dan konsentrasi larutan KMnO4. Mn-Z yang diperoleh dikarakterisasi dengan menggunakan spektrofotometer inframerah dan difraksi sinar-X. Penurunan kadar besi dalam air sumur gali dilakukan dengan memasukkan Mn-Z ke dalam kolom gelas berkran yang dipasang vertikal pada statif. Kolom zeolit dialiri air baku dengan kran dalam keadaan tertutup dan waktu tinggal selama 1 jam. Kran kolom dibuka dan diatur laju alirnya sebesar 5 mL/menit. Pengujian terhadap filtrat menunjukkan bahwa penyaringan air baku menggunakan Mn-Z variasi waktu perendaman menyebabkan kadar besi dalam filtrat berkurang dari 5 mg/L menjadi 0,5 mg/L dengan bertambahnya waktu perendaman zeolit. Selain itu, filtrat hasil penyaringan air baku dengan menggunakan Mn-Z variasi konsentrasi larutan KMnO4 menunjukkan kadar besi dalam filtrat menurun dari 5 mg/L menjadi 0,5 mg/L dengan bertambahnya konsentrasi larutan KMnO4 yang digunakan.  
THE POTENTIAL USE OF ANTI-NUTRITIONAL COMPOUNDS OF GADUNG TUBERS AS BIOPESTICIDES Riva Ismawati; Feni Nurhidayanti; Theresya Amelya Dhewi; Cucun Yuningsih
JURNAL PENA SAINS Vol 8, No 2 (2021): Jurnal Pena Sains
Publisher : Program Studi Pendidikan IPA, Fakultas Ilmu Pendidikan, Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jps.v8i2.9518

Abstract

The use of gadung (Discorea hispida dennst.) tubers as food source is not seen as an attractive option due to dioscorine and cyanide anti-nutritional compounds contained therein. The presence of dioscorine and cyanide compounds makes gadung tubers known as poisonous food. Although the community has known its poisonous nature, the use of gadung tubers as natural pesticides (biopesticides) is not commonly known by the community. Using gadung tubers as biopesticides provides solution to unanswered problems caused by chemical pesticides. This article seeks to describe the potential use of anti-nutritional compounds of gadung tubers as biopesticides based on literature reviews. Various literature related to anti-nutritional compounds contained in gadung tubers and their use as biopesticides have been analyzed in depth. The literature review results show that dioscorine and cyanide anti-nutritional compounds are toxic and can be used as biopesticides. The effectiveness of gadung tubers on various agricultural pests depends entirely on the concentration of gadung tubers used. The use of gadung tubers as biopesticides is needed to increase and maintain the productivity of agricultural land in addition to preserving natural resources.
ZEOLITE: STRUCTURE AND POTENTIAL IN AGRICULTURE Riva Ismawati
JURNAL PENA SAINS Vol 5, No 1 (2018): Jurnal Pena Sains
Publisher : Program Studi Pendidikan IPA, Fakultas Ilmu Pendidikan, Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jps.v5i1.3199

Abstract

Zeolite is a hydrated aluminosilicate mineral with a three-dimensional structure. The unique zeolite crystal structure makes zeolites have cation boundary properties, adsorption, molecular sieving, catalysts, capture, and release of air molecules. Many studies in various fields including agriculture have been done by utilizing the properties of the zeolite. Indonesia has an abundant source of zeolite reserves and extensive agricultural areas, making it possible to apply zeolite research results to support sustainable agricultural activities. In this article will discuss the potential utilization of zeolite in agriculture based on the studies that have been done.
PENGEMBANGAN INSTRUMEN PENILAIAN PENGETAHUAN AWAL (PRIOR KNOWLEDGE) MAHASISWA PADA MATERI TERMOKIMIA Riva Ismawati; Eli Trisnowati
Phenomenon : Jurnal Pendidikan MIPA Vol 9, No 1 (2019): Jurnal Pendidikan MIPA
Publisher : Faculty of Science and Technology, Universitas Islam Negeri Walisongo Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/phen.2019.9.1.2619

Abstract

Abstract This study aims to determine the characteristics of the testlet assessment instrument items of student’s prior knowledge on thermochemistry material. The method used in this research was research and development method of 3-D model (Define, Design, Develop). Instruments were piloted on 39 students and validated by experts. Instrument reliability (r11) of the instrument was 0.9 with very high category. The validity of the items consisted of 42 valid questions, and 3 invalid questions. The difficulty index of item consisted of 7 difficult questions, 34 moderate questions, and 4 easy questions. Discrimination index of item consisted of 7 questions bad category, 17 questions enough category, 20 questions good category, and 1 question very good category.Keywords : assessment instrument, prior knowledge, teslet, thermochemistry Abstrak Penelitian ini bertujuan untuk menentukan karakteristik butir soal instrumen penilaian pengetahuan awal (prior knowledge) mahasiswa berbentuk tes teslet pada materi termokimia. Metode yang digunakan dalam penelitian ini adalah metode penelitian dan pengembangan model 3-D (Define, Design, Develop). Instrumen diujicobakan pada 39 mahasiswa dan divalidasi oleh ahli. Reliabilitas instrumen r11 sebesar 0,9 dengan kategori sangat tinggi. Validitas butir soal terdiri dari 42 soal valid, dan 3 soal tidak valid. Tingkat kesulitan butir soal terdiri dari 7 soal sukar, 34 soal sedang, dan 4 soal mudah. Daya pembeda butir soal terdiri dari 7 soal jelek, 17 soal cukup, 20 soal baik, dan 1 soal sangat baik.Kata kunci: instrumen penilaian, pengetahuan awal, testlet, termokimia
PEMANFAATAN ISU SOSIO-SAINTIFIK TRADISI MENGINANG SEBAGAI KONTEKS BELAJAR IPA SMP Riva Ismawati
JURNAL PENDIDIKAN SAINS UNIVERSITAS MUHAMMADIYAH SEMARANG Vol 7, No 2 (2019): JURNAL PENDIDIKAN SAINS UNIVERSITAS MUHAMMADIYAH SEMARANG
Publisher : Pendidikan Kimia Unimus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26714/jps.7.2.2019.123-128

Abstract

This study aims to examine the socio-scientific issues of the betel chewing tradition so that it can be used as a context for learning science lessons in junior high school. The research conducted is qualitative research with a case study approach. The population was residents of Genito Village, Windusari Subdistrict, Magelang District who still carried out the tradition of betel chewing. The research sample was determined using cluster random sampling technique and selected 4 respondents. The instruments used in the study are interview guidelines and observation guidelines. The results showed that the betel chewers believed that betel chewing could strengthen the teeth. Unfortunately, betel chewers do not maintain oral hygiene so that the activities of the chewing can have a negative impact. The socio-scientific issue of the tradition of  betel chewing can be built as a context for junior high school science learning activities.
Co-Authors Adi Iriyanto Adi Nur Cahyono Adinda Permatasari Putri Efendi Agus Wahyudi Ahmad Muhlisin Ahmad Muhlisin Alene Tawang Ambar Rinarni Arif Widiyatmoko, Arif Ayu Nuryanti Aza Mazita Cucun Yuningsih Eli Trisnowati elma yuliantina romadhon Eva Rahayuningsih Feni Nurhidayanti Hapsari Catur Mahardika M. Najib Ngirfani muhammad nur rohman Muhlisin, Ahmad Mukhamad Najib Novitasari Novitasari Nur Sholikah Nuryunita Dewantari Rina Dwik Atanti Rina Rahayu Rina Rahayu Rizqa Puspitarini Rizqa Puspitarini Sari, Kurnia Intan Setiyo Prajoko Setiyo Prajoko Singgih, Suwito Siswanto Siswanto Siswanto, Siswanto Sukron Mazid Theresya Amelya Dhewi Turah Slamet Tutik Arifah Utami Dian Pertiwi Utami Dian Pertiwi