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All Journal Jurnal Penelitian Pendidikan Matematika dan Sains Matematika dan Sains Jurnal Pendidikan dan Pembelajaran Kimia (JPPK) J-PEK (JURNAL PEMBELAJARAN KIMIA) Jurnal Penelitian Pendidikan IPA (JPPIPA) IJCER (International Journal of Chemistry Education Research) PENDIPA Journal of Science Education JCER (Journal of Chemistry Education Research) Jurnal Eduscience (JES) Abdi: Jurnal Pengabdian dan Pemberdayaan Masyarakat Chemistry Education Practice JPPIPA (Jurnal Penelitian Pendidikan IPA) Jurnal Abdi: Media Pengabdian Kepada Masyarakat Edunesia : jurnal Ilmiah Pendidikan Jurnal Inovasi Pembelajaran Kimia (Journal Of Innovation in Chemistry Education) Hydrogen: Jurnal Kependidikan Kimia Jurnal Pijar MIPA UNESA Journal of Chemical Education Asian Journal of Science Education
Bertha Yonata
Universitas Negeri Surabaya
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Education Environmental Science Health Professions Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Physics Public Health Social Sciences Other

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UJI COBA PEMBELAJARAN KIMIA FISIKA III BERBANTUAN INTERNET Bertha Yonata, ; Suyono,
Jurnal Penelitian Pendidikan Matematika dan Sains Vol 15, No 1 (2008)
Publisher : Jurnal Penelitian Pendidikan Matematika dan Sains

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Abstract

The purposes of this research are to find out the feasibility of implementation internet assisted learning and chemistry student’s learning outcomes after attended learning assisted by internet. The research has been implemented to 12 chemistry students of Kimia Reguler 2005 FMIPA Unesa class at odd semester 2007-2008. This research is a descriptive research that describe about learning feasibility, student’s learning outcomes, and student respons about learning set and teaching-learning process. The result of this research show that RPP feasibility is good (3,33 - 4,00). Student’s learning outcomes show 100,00% of the students reach point more than 66. Students satisfied with learning assisted by internet. The conclusions of this research are learning assisted by internet of Reaction Rate and Factors Affect Reaction Rate topic has carried out, students’s response positive, and  students have completely master the learning.
UJI KESTABILAN KALIUM FERAT Nur Hayati, ; Nita Kusumawati, ; Bertha Yonata,
Matematika dan Sains Vol 16, No 1 (2009)
Publisher : Matematika dan Sains

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Abstract

The synthesis of potassium ferrate and the optimazion as green chemistry degradator had been studied. The purpose of research was to study the influence of pH and reaction time to potassium ferrate stability. This research was started by synthesis and characterization of potassium ferrate. Some parameters influencing degradation process by ferrate ion, such as pH and molar reaction time have been studied, and the decomposition result was quantization by spectrophotometry UV-Vis. Based on the XRD spectra, it was found that the solid phase potassium ferrate had a tetrahedral structure with a space group of D2h(Pnma). The potassium ferrate solution had a maximum stability at pH 9-10. Decomposition result of ferrate indicated that kinetic constant was stable at spanning time 24-72 hours.2h(Pnma). The potassium ferrate solution had a maximum stability at pH 9-10. Decomposition result of ferrate indicated that kinetic constant was stable at spanning time 24-72 hours.
PENGEMBANGAN PERANGKAT PEMBELAJARAN BERBASIS INQUIRY PADA PERKULIAHAN KIMIA FISIKA I: STRUKTUR DAN IKATAN KIMIA GUST MADE SANJAYA, I; NOVITA, DIAN; YONATA, BERTHA
Jurnal Penelitian Pendidikan Matematika dan Sains Vol 19, No 2 (2012): Vol. 19, No. 2, Desember 2012
Publisher : Jurnal Penelitian Pendidikan Matematika dan Sains

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Abstract

Perangkat pembelajaran Kimia Fisika I dikembangkan untuk menghidupkan suasana kelas dalam berinteraksi dan membangkitkan minat belajar mahasiswa. Melalui penerapannya, mahasiswa dirangsang menemukan dan membangun pengetahuan secara bertahap sesuai konsep hirarki pengetahuan dari Gagne. Penelitian ini telah berhasil mengembangkan perangkat pembelajaran Kimia Fisika I: Struktur dan Ikatan Kimia yang terdiri dari syllabus, lesson plan, worksheet, assessment, dan media pembelajaran berformat Microsoft Powerpoint dalam bahasa Inggris untuk perkuliahan KF I bagi mahasiswa kelas Internasional.  Hasil validasi perangkat menunjukkan bahwa Syllabus (skor 85,71-90), Lesson plan (skor 80-85), Worksheet (skor 54-95,71), Assessment (skor 80-82,5), dan Media Pembelajaran (skor 89,23) valid digunakan sebagai perangkat pembelajaran KF I. Hasil ujicoba perangkat pada mahasiswa Kelas Internasional menunjukkan bahwa mahasiswa mampu memanfaatkan perangkat pembelajaran dalam menyelesaikan problem KF I (skor rata-rata 4), namun mahasiswa kurang mampu melakukan diskusi sebagai kelanjutan presentasi medianya (skor rata-rata 2). Mahasiswa memberi respon positif terhadap penerapan perangkat pembelajaran pada perkuliahan KF I (skor rata-rata respon 70%). Berdasarkan hasil validasi, hasil ujicoba, dan hasil respon mahasiswa dapat disimpulkan bahwa perangkat pembelajaran yang dikembangkan cukup layak digunakan pada perkuliahan KF I bagi mahasiswa pendidikan kimia kelas Internasional Jurusan Kimia FMIPA Unesa. Kata kunci: pengembangan, inquiry, kimia fisika I. Learning device KF I developed to liven up the classroom interaction and student learning intriguing. Through practice, students discover and construct knowledge stimulated in stages according to the concept hierarchy knowledge from Gagne. This research has successfully developed a learning device Physical Chemistry I: Structure and Chemical Bonding consisting of syllabus, lesson plans, worksheets, assessment, and instructional media format Microsoft Powerpoint lectures in English to the students of class I KF International. The validation results indicate that the Syllabus (score of 85.71 to 90), Lesson plan (score 80-85), Worksheet (score of 54 to 95.71), Assessment (score of 80 to 82.5), and Learning Media (score 89 , 23) is used as a learning device valid KF I. The results of the tests on the International Class students showed that students are able to utilize the learning tools in solving problems KF I (an average score of 4), but students are less able to engage in a discussion as a continuation of the presentation medium (mean score 2). Students responded positively to the application of the learning in lectures KF I (an average score of 70% response). Based on the validation results, test results, and the results it can be concluded that the response of students learning device was developed enough to be used at the lecture KF I chemical education class for students International Department of Chemistry, Faculty Unesa. Key words: developing, inquiry, Physical Chemistry I
ENGLISH FOR TEP LEARNING MEDIA BASED VI-LEARN TO TRAIN VERBAL COMMUNICATION SKILLS OF CHEMISTRY STUDENT Yonata, Bertha; SBW, Maria Monica; NOVITA, DIAN
JCER (Journal of Chemistry Education Research) Vol 2, No 2 (2018): Volume 2 No. 2 December 2018
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jcer.v2n2.p70-75

Abstract

Learning can not only be done in the classroom with direct face-to-face activities but can now be done with the help of IT, for example with learned learning. Although learning with vi-learn or e-learn cannot indeed replace overall face-to-face learning in the classroom. The world of education cannot be separated from technological advances such as this study because sometimes in carrying out classroom learning there are obstacles that cannot be avoided. These obstacles can be administrative in nature such as national holidays which coincide with the schedule of courses and cannot be replaced on another day due to limited space and insufficient time. In this study, learning tools for the English for TEP-based learning program have been developed to learn the verbal communication skills of students majoring in chemistry. From the data from the validation results, it can be concluded that learning devices consisting of enrichment modules and worksheets are feasible to be used in learning lessons. Likewise, from the response data, students showed a positive response from students in using enrichment modules and worksheets.
ENGLISH FOR TEP LEARNING MEDIA BASED VI-LEARN TO TRAIN VERBAL COMMUNICATION SKILLS OF CHEMISTRY STUDENT Yonata, Bertha; SBW, Maria Monica; NOVITA, DIAN
JCER (Journal of Chemistry Education Research) Vol 2, No 2 (2018): Volume 2 No. 2 December 2018
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jcer.v2n2.p70-75

Abstract

Learning can not only be done in the classroom with direct face-to-face activities but can now be done with the help of IT, for example with learned learning. Although learning with vi-learn or e-learn cannot indeed replace overall face-to-face learning in the classroom. The world of education cannot be separated from technological advances such as this study because sometimes in carrying out classroom learning there are obstacles that cannot be avoided. These obstacles can be administrative in nature such as national holidays which coincide with the schedule of courses and cannot be replaced on another day due to limited space and insufficient time. In this study, learning tools for the English for TEP-based learning program have been developed to learn the verbal communication skills of students majoring in chemistry. From the data from the validation results, it can be concluded that learning devices consisting of enrichment modules and worksheets are feasible to be used in learning lessons. Likewise, from the response data, students showed a positive response from students in using enrichment modules and worksheets.
INTEGRASI STRATEGI CONCEPTUAL CHANGE DALAM MODEL PEMBELAJARAN INOVATIF UNTUK MENINGKATKAN KOMPETENSI PROFESIONAL GURU KIMIA KABUPATEN BLITAR Nasrudin, Harun; Azizah, Utiya; Yonata, Bertha
Jurnal ABDI: Media Pengabdian Kepada Masyarakat Vol 3, No 2 (2018)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ja.v3n2.p57-62

Abstract

Telah dilakukan kegiatan pelatihan pengabdian kepada masyarakat (PKM) di Kabupaten Blitar yang bertujuan untuk mendeskripsikan pemahaman guru kimia terhadap materi integrasi strategi conceptual change dalam model-model pembelajaran inovatif, kemampuan guru kimia dalam menyusun kegiatan-kegiatan pembelajaran berbasis integrasi strategi conceptual change dalam model-model pembelajaran inovatif, dan respon guru selama mengikuti kegiatan pelatihan. Langkah-langkah kegiatan pelatihan yang dilakukan adalah penyegaran materi dan penyusunan Rencana Pelaksanaan Pembelajaran (RPP) yang mengintegrasikan strategi conceptual change dalam model-model pembelajaran inovatif. Evaluasi dilakukan melalui tes pemahaman dan angket kepada guru untuk mendapatkan data terhadap pelaksanaan pelatihan. Berdasarkan data hasil pelatihan, dapat disimpulkan bahwa: (1) pemahaman materi integrasi strategi conceptual change dalam model-model pembelajaran inovatif guru kimia di Kabupaten Blitar telah memperoleh kategori baik dan sangat baik, (2) kemampuan guru kimia di Kabupaten Blitar dalam menyusun kegiatan-kegiatan pembelajaran berbasis integrasi strategi conceptual change dalam model-model pembelajaran inovatif adalah baik dan sangat baik, dan (3) secara umum respon guru MGMP kimia di Kabupaten Blitar terhadap kegiatan pelatihan ini adalah baik dan sangat baik.
Development of Students Worksheet Based STEM (Science, Technology, Engineering, and Mathematics) to Improve Student Critical Thinking Skill In Reaction Rate Esty Ayu Fadhilatul Munawaroh; Bertha Yonata
Jurnal Pendidikan dan Pembelajaran Kimia Vol 10, No 3 (2021): Jurnal Pendidikan dan Pembelajaran Kimia
Publisher : Universitas Lampung

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Abstract

Development of Students Worksheet Based STEM (Science, Technology, Engineering, and Mathematics) to Improve Student Critical Thinking Skill In Reaction Rate. The aim of this study is to know the feasibility of students’ worksheets based on STEM to improve the ability of critical thinking on the reaction rate matter. The study uses a Research and Development (R D) design until the limited testing phase. The trial was conducted on 15 students in class XI MIA 6 Senior High School Hang Tuah 2 Sidoarjo. The instruments used are review and validation sheets, student response questionnaire sheets, knowledge, and critical thinking skills test sheets. The STEM-based Student Worksheets are feasible based on validity, practicality, and effectiveness aspect. Validity is reviewed based on content and construct with percentage each criterion are 81,25% (very valid) and 80,69% (valid). Practicality based on student responses shows of percentage 86,67% with very practice category. Effectivity based on results of knowledge and critical thinking skills tests with Wilcoxon test each show sig. (2-tailed) the score is 0,001 the meaning is before and after students have student worksheets is different, and the results of knowledge and critical thinking skills n-gain show 0,78 and 0,87 with high category. The n-gain results of critical thinking skills interpretation are 0,94, analysis is 0,76, and inferention is 0,86 with high category. So it can be concluded that STEM-based worksheets are feasible and can improve students' critical thinking skills.Keywords: Student Worksheets, STEM, Critical Thinking Skills, Reaction Rates DOI: 10.23960/jppk.v10.i3.2021.13
Development of Integrated Curriculum Student Worksheet to Train Student Scientific Literacy Skills in Reaction Rate Materials Varradiah Choirun Nisa'; Bertha Yonata
Jurnal Pendidikan dan Pembelajaran Kimia Vol 9, No 3 (2020): Jurnal Pendidikan dan Pembelajaran Kimia
Publisher : Universitas Lampung

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Abstract

Development of Integrated Curriculum Student Worksheet to Train Student Scientific Literacy Skills in Reaction Rate Material. This research aims to describe the feasibility of integrated curriculum student worksheet to train student scientific literacy skills in reaction rate material assessed from validity, practical, and effectiveness criteria. This research uses Research and Development (RD) method until limited the trial stage. The instruments are the review and validation sheet, activities observation sheet, student questionnaire sheet, and science literacy skill test sheet. The developed student worksheet was tested on 13 students of XI grade at State Senior High School (SMAN) of 1 Grati Pasuruan that already accept reaction rate material. The validity of student worksheet is obtained based on assessment from two chemistry lecturers of Universitas Negeri Surabaya and two chemistry teachers of State Senior High School (SMAN) of 1 Grati. The validation consists of content and construct validity by expert obtained a percentage sequentially are 91,46% and 88,96% with both in very valid category. The practical of student worksheet is obtained based on student response and activities observation who get positive response of 98,82%  and relevant student activities result of 98,83% both with very valid practical category. The effectiveness of student worksheet is obtained based on test result of student science literacy skills where student declared as complete with value range 83,9-96,8 and N-gain value of 0,8 with high criteria. Each domain of scientific literacy skills include science context, science knowledge, science competencies, and attitude towards science got percentages sequestially 90%, 91%, 91%, dan 96%.
Development of Student Worksheet Based on Inquiry and Internet Assisted Learning to Practice Critical Thinking Skills in Submateries of Reaction Rates. Kuny Abidatul Mahmudah; Bertha Yonata
Jurnal Pendidikan dan Pembelajaran Kimia Vol 9, No 3 (2020): Jurnal Pendidikan dan Pembelajaran Kimia
Publisher : Universitas Lampung

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Abstract

This study aims to determine the feasibility based of Inquiry student worksheets based on Internet Assisted Learning in the reaction rate submaterial to practice critical thinking skills of class XI SMA students. The development research design uses the 4-D method (Define, Design, Develop, and Dissiminate). In this research it is up to the development stage. The trial was carried out on 24 high school class XI students who had not received material on the reaction rate on November 9-20 2020. The research instrument consisted of a review sheet, a validation sheet, a student response questionnaire, a knowledge test sheet, and a critical thinking skill test sheet. The results showed that the student worksheet was very feasible based on the assessment of the validator and student responses of ≥ 81% and achieving a value of ≥ 75 according to the criteria for minimum learning completeness. The validator's assessment based on the eligibility of the content, language, presentation, and graphic criteria showed the percentage of 98.6%, 86.4%, 85,4%, and 100%  in the very valid category. Student response shows a positive response assessment based on the eligibility of the content, language, presentation, and graphic criteria showed the percentage criteria of content is 91.8% , language is 81.7%, presentation is 85%, and graphic 96.7%. The results of the knowledge test obtained an n-gain score of 0.85 in the very high category. The results of the creative thinking skills test obtained an n-gain score of 0.795 in the very high category.
Development of student worksheets based on guided inquiries to train students science process skills on reaction rate materials Haridha Nurfidayanti Nurfidayanti; Bertha Yonata
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 (257.3 KB) | DOI: 10.29303/jpm.v17i1.3192

Abstract

This study aims to determine the validity, practicality, and effectiveness of the worksheets developed for the chemical learning of students' reaction rates. This research is focused on the guided inquiry learning model to improve students' science process skills. The research sample was 36 students of class 11 MIPA 4 SMAN 1 Puri, Mojokerto Regency. The research model used the One Group Pretest and Posttest Design. The data analysis technique used normality test, paired sample t-test, and n-gain test. The validation results show that 93.3% is valid. An average of 98% of students showed a positive response to the developed Student Worksheets. In addition, students carry out relevant activities with 90.2% when learning takes place. The pretest-posttest of cognitive domains and science process skills showed what usually distributed the data. The paired sample t-test test showed a difference in the pretest-posttest results, and the n-gain test showed an increase in the pretest-posttest. The Student Worksheets Developed are valid, practical, and effective for use in learning chemistry for the Reaction Rate material and can train students' science process skills.
Co-Authors ., Khofifatin . ., Mahmadatul Faizah ., Nur Shofiyah ., Rini Julistiawati ., Triyas Rahayu Achmad Lutfi Achmad Lutfi Agatha, Berliana Agustine, Amalia Cahyaning Wulan AINI, KHURROTUL Ainiah, Errisya Nur AISYAH, DEWI Ajeng Pramesti, Siti Andini AL HIKMAH PUTRI, ARNI Andreani, Lucky Arthamevia ANGGRAENI PUTRI, RENNY Anita Rahmawati Asih, Findiyani Ernawati ATIK MUKMAINAH, SITI AULIYA, NURUL BERLIANA, YESSY CITRA ASHUDIK, PRAFESELIA Dian Novita Dian Novita Dian Novita Dian Savitri EKA AMBARWATI, DIAN Elok Suidibyo Era Melania Esty Ayu Fadhilatul Munawaroh Fadilah, Citra Dia Farhati Zakiyah FARIKAINI, AINUN FEBRIANTI SYAFITRI, PUTRI Findiyani Ernawati Fitri Annisaa Gholiyah, Sanih Guntur Trimulyono Haridha Nurfidayanti Nurfidayanti Harun Nasrudin I GUST MADE SANJAYA IKKE KURNIA MAYASARI, PRESTYLIA Intan Novitasari Irmayanti, Dwi JULIAN, AWANDA Kuny Abidatul Mahmudah KURNIYANINGSIH, BAYTI Lathifa, Azzahra Ghina Malichah, Siti Maria Monica SBW Maria Monica Sianita Mitarlis Mitarlis Muchlis MUCHLIS Mustainah Isnaini Muti'atus Sholehatu Nurdiyah Nita Kusumawati Noera Wahdaniyah Novita, Dian Nugrahani primary putri Nur Aini Nur Hayati NURKHOLIK, MOHAMAD Nurul Hidayati Nurul Hidayati Putri Nur Azizah, Putri Nur Putri, Alifiyah Putri, Reyna Miftahud Daroeni R. Ayu Sofiah Wilatika Rinaningsih Rinaningsih RUDIANTO ARTIONO, RUDIANTO Rusmini Rusmini SAFITRI, AINA Saskara, Favian Agung Difa' Selviana, Elfa Sri Hidayati S. Sri Poedjiastoeti SUGIARTI, TUTUT Suyatno SUYONO Suyono Suyono SWARA PURNAMASARI, LOKITA Syafira Humairoh Tikandi, Maulida Iftina Belladona Tukiran Tyas, Bella Wahyuning Utiya Azizah Varradiah Choirun Nisa' Wahyu Budi Sabtiawan Widowati, Azza Nuriah Woro Setyarsih