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All Journal CHEMICA Jurnal Teknik Kimia Jurnal Pendidikan dan Pembelajaran Kimia (JPPK) Jurnal Penelitian Pendidikan IPA (JPPIPA) Orbital: Jurnal Pendidikan Kimia PENDIPA Journal of Science Education Academy of Education Journal JCER (Journal of Chemistry Education Research) Jurnal Abdi: Media Pengabdian Kepada Masyarakat Sains dan Matematika Hydrogen: Jurnal Kependidikan Kimia Jurnal Pijar MIPA Journal of The Indonesian Society of Integrated Chemistry
Rusmini Rusmini
Universitas Negeri Surabaya
Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Education Energy Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

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Acid Base Module with SETS Approach to Train Students’ Critical Thinking Skill Anis Mualifah; Rusmini Rusmini
Jurnal Pendidikan dan Pembelajaran Kimia Vol 10, No 1 (2021): Jurnal Pendidikan dan Pembelajaran Kimia
Publisher : Universitas Lampung

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Abstract

Acid Base Module with SETS Approach to Train Student Critical Thinking Skills. This study aimed to develop an acid-base module with SETS approach to train students' critical thinking skills. The study used Borg Gall Research and Development (RD) method until the limited trial stage. The limited trial was carried out on 12 students of class XI at SMAN 1 Dongko Trenggalek. Then, the developed module was tested for its feasibility based on 3 aspects, namely validity, practicality and effectiveness. The module's validity data was obtained from the results of the assessment from two chemistry lecturers and one chemistry teacher. The module obtained validity percentages of 84.1% for content, 84.17% for presentation and 83.33% for language with a valid category. The module's practicality was obtained from the student response questionnaire results, where the practicality percentage of the module was 98.81% with a very practical category. The module's effectiveness was known from the students’ critical thinking skills improvement based on the pretest and posttest scores and obtained n-gain score average of 0.79 with high category. It is supported by the Wilcoxon test results, which obtained Asymp.Sig 0.05 (0.002 0.05), so that Ha is accepted. So, it can be concluded that the acid-base module with the SETS approach can train students' critical thinking skills
Student Worksheets Based on Science Literacy to Practice Students' Argumentation Skills on Electrolyte and Non-Electrolyte Solution Materials Sisilia Fil Jannati; Rusmini Rusmini
Jurnal Pendidikan dan Pembelajaran Kimia Vol 11, No 1 (2022): Jurnal Pendidikan dan Pembelajaran Kimia
Publisher : Universitas Lampung

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Abstract

Student Worksheets Based on Science Literacy to Practice Students' Arguing Skills on Electrolyte and Non-Electrolyte Solution Subjects. The purpose of this research is to produce student worksheets in training students' argumentation skills on electrolyte and non-electrolyte solution materials that are feasible from the aspect of validity, practicality, and effectiveness. This research uses the 4D research method (Define, Design, Develop, Disseminate), but is limited to the Develop stage. The validity of the student worksheets in terms of content, presentation, language, and graphic aspects obtained very valid criteria with an average percentage of 87.50%: 89.50%; 88.00%; 85.50%. The practicality of the student worksheets is assessed from the student activity observation sheets during learning and student response questionnaires. Relevant student activities obtained very practical criteria with 92.86% at the first meeting and 90.48% at the second meeting. Student response questionnaires got very practical standards with an average percentage in content, presentation, language, and graphics, respectively 97.33%; 96.80%; 93.33%; and 95.83%. The effectiveness of student worksheets to obtain very effective results can be seen from the increase in learning outcomes on cognitive tests and students' argumentation skills tests with n-gain values of 0.79 and 0.85, which have high interpretations. This result is also supported by the results of the Paired Sample T-Test and obtained a Sig value. (2-Tailed) of 0.000 on cognitive tests and tests of argumentation skills. It means there is an influence in the use of student worksheets developed on the results of cognitive tests and students' argumentation skills. Student worksheets based on scientific literacy are very important to train students' argumentation skills. Keywords: student worksheet, scientific literacy, argumentation skills, electrolyte and non-electrolyte solutions DOI: http://dx.doi.org/10.23960/jppk.v11.i1.2022.02
Pengaruh Waktu Kontak Karbon Aktif dari Kulit Durian terhadap Kadar COD, BOD, dan TSS pada Limbah Cair Industri Tahu Lydiana Eka Nabilla; Rusmini Rusmini
CHEMICA: Jurnal Teknik Kimia Vol 6, No 2 (2019): Desember 2019
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26555/chemica.v6i2.14698

Abstract

The disposal of tofu industrial wastewater into the environment without treatment can cause pollution. The purpose of this study was to utilize durian peel as activated carbon which is used to treat the tofu industrial wastewater through adsorption process. In addition, to determine the effect of variation in contact time on the adsorption process. Carbon from durian peel with chemical activation using KOH 25% containing 10.15% water, 6.14% ash, and iod adsorption of 1194.83 mg/g. Activated carbon from durian peel was tested by FTIR obtained by functional groups of –OH, C−H, and C=C aromatic. Porosity analysis of activated carbon using SAA with BET method obtained surface area of 471.6 m2/g, pore volume of 0.5698 cc/g, and average pore diameter of 24 Å classified as mesoporous. Adsorption process between activated carbon and tofu industrial wastewater variations in contact time during 30, 60, 90, and 120 minutes. Based on the study, the optimum contact time was 90 minutes. At that time, activated carbon from durian peel can reduce COD levels to 57%, BOD to 59%, and TSS to 72% from the initial levels of tofu industrial wastewater.
Development of student worksheets with contextual teaching and learning (CTL) approach to train critical thinking skills responsibility of students on thermochemistry concepts Sitti Kholifah Amartyah; Rusmini Rusmini
Jurnal Pijar Mipa Vol. 17 No. 3 (2022): May 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 (345.02 KB) | DOI: 10.29303/jpm.v17i3.3452

Abstract

This study aims to produce and describe the feasibility of student worksheets with a contextual teaching and learning CTL approach in training critical thinking skills and responsibility in thermochemical material. This study uses a research and development type, the ADDIE (Analysis, Design, Development, Implementation, Evaluation). The research sample was 24 students of class XI IPA MA Nurut Taqwa Grujugan Cermee Bondowoso, West Java, Indonesia. The results showed that: 1) Validity analysis obtained an average percentage of 87% with very valid criteria; 2) Practical analysis based on the percentage of response questionnaires and student activity observations of 88% and 98% with very practical criteria; 3) Analysis of effectiveness based on pretest-posttest data: a) Normality test of cognitive knowledge and critical thinking skills 0.985 and 0.297 normally distributed; b) Paired Sample t-Test 0.000 showed an increase in learning outcomes; c) The N-Gain test of cognitive knowledge and critical thinking skills scored 78% and 76% showed an increase in learning outcomes and attitude of respondents obtained a score of 87% with very good criteria. IN conclusion, the developed student worksheet with the CTL approach is categorized as feasible with valid, practical, and effective criteria. The development of student worksheets as teaching material to improve students' critical thinking skills becomes a choice for learning to make learning more meaningful, accompanied by the attitude of students who are full of responsibility, which is an important thing to do.
Pemanfaatan Sabut Siwalan untuk Pembuatan Karbon Aktif sebagai Adsorben Limbah Pewarna Industri Batik Heriono Heriono; Rusmini Rusmini
Sains dan Matematika Vol. 4 No. 1 (2015): Oktober, Sains & Matematika
Publisher : Universitas Negeri Surabaya

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Abstract

Penelitian ini bertujuan untuk menganalisis karakteristik karbon aktif sabut siwalan sebagai adsorben, pengaruh massa dan waktu interaksi terhadap kemampuan adsorpsi rhodamin B. Variasi massa karbon aktif sabut siwalan terhadap adsorpsi rhodamin B pada berbagai variasi massa yaitu 0,1; 0,2; 0,3; 0,4; dan 0,5 gram dengan lama waktu interaksi 90 menit dan berbagai variasi waktu yaitu 30, 60, 90, 120, dan 150 menit dengan massa adsorben 0,3 gram. Penelitian dilakukan pada dua tahap. Tahap pertama pembuatan karbon aktif dari sabut siwalan. Hasil penelitian tahap pertama menunjukkan bahwa kandungan air dan abu pada karbon aktif sabut siwalam secara berturut-turut adalah 3,0622% dan 9,1429%. Hasil surface area analyzer menunjukkan luas permukaan dan rerata jari-jari pori berturut-turut sebesar 3,160 m2/g dan 3,199Ã…. Penelitian tahap kedua menguji aktivitas karbon aktif dari sabut siwalan dengan rhodamin B pada variasi massa dan waktu interaksi menunjukkan variasi massa berpengaruh terhadap kemampuan adsorpsi rhodamin B, waktu kontak optimum pada massa 0,3 gram dengan hasil rhodamin B teradsorp 67,59%. Selain itu, variasi waktu juga berpengaruh pada kemampuan mengadsorpsi rhodamin B, waktu kontak optimum pada waktu 90 menit dengan hasil rhodamin B teradsorp 58,95%. This study aimed to analyze the characteristic of activated carbon made from siwalan (palmyra palm) fi ber as adsorbent, the effect of the addition of various mass of siwalan fi ber and interaction time to the adsorption ability of rhodamine B. The various mass of siwalan fi ber used were 0.1; 0.2; 0.3; 0.4; and 0.5 grams with interaction time 90 minutes. In addition, various of interaction time were used, namely 30, 60, 90, 120 and 150 minutes with mass of adsorbent 0,3 grams. The study was conducted in two stages. The fi rst stage was making activated carbon from siwalan fi ber. The fi rst phase result showed that the content of water and ash in the activated carbon from siwalan fi ber were 3.0622% and 9.1429% respectively. The results of surface area analyzer showed that surface area and average pore radius were 3.160 m2/g and 3.199Ã… respectively. The second phase testing the activity of activated carbon from siwalan fi ber with rhodamine B in the variation of mass and interaction time result showed a mass 0.3 grams with the result of adsorbent rhodamine B was 67.59%. In addition, the time variation also affected the ability to adsorb rhodamine B. The optimum contact time of 90 minutes with result of adsorbent rhodamine B was 58,95%.
PEMBELAJARAN ECIRR DALAM MEREDUKSI MISKONSEPSI PADA MATERI STOIKIOMETRI KELAS X SMA Crislia A Wulandari; Rusmini Rusmini
Orbital: Jurnal Pendidikan Kimia Vol 4 No 1 (2020): Orbital: Jurnal Pendidikan Kimia
Publisher : Chemistry Education Department of Education and Teaching Faculty

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19109/ojpk.v4i1.5487

Abstract

The students already have preconceptions in learning chemical concepts. However, each student's preconception can differ from the actual concept according to the chemists. This is what allows the wrong concept in students or commonly called misconceptions. In this case, if the misconception is not immediately solved it will affect the next learning process. One learning model to reduce misconceptions is ECIRR. This study aims to determine the effectiveness of LKPD which develope in reducing misconceptions in term the shifting students conception of students from misconception to knowing concept. This research uses pre-experiment research method with One group Pretest – Posttest Design model. There are 15 students of class x science from a senior high school in surabaya who are selected based on the results of the students' initial understanding test. The understanding test used is a three-tier test to identify students concepts given as initial concept detection and final concept detection, while students' misconceptions are reduced with the ECIRR learning model. The results of the study obtained a percentage shift from misconception to know concept of 92.31% for the sub concepts of basic chemical law (Gay-lussac), 88.24% for the sub concepts of molar mass and relative molecular mass, 72% for the subconcepts of the number of particles, and 88% for empirical formula sub concepts. So it can be shown that LKPD is very effectively used to reduce students' misconceptions on stoichiometry material.
PENGGUNAAN MODEL CONCEPTUAL CHANGE PADA INSTRUMEN THREE-TIER-TEST DAN LKPD Dwi Anggraeni Riswana; Rusmini Rusmini
Orbital: Jurnal Pendidikan Kimia Vol 4 No 2 (2020): Orbital: Jurnal Pendidikan Kimia
Publisher : Chemistry Education Department of Education and Teaching Faculty

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19109/ojpk.v4i2.6450

Abstract

There are still many misconceptions in the buffer solution material based on the results of pre-research that has been done. Therefore, it is necessary to to make efforts to reduce misconceptions. This research aims to determine the validity of the three-tier-test diagnostic test instrument and Student Worksheet (LKPD) to reduce student’s misconceptions through conceptual change model on buffer material. This research and development method uses a 3-D model which is a modification of the 4-D model, namely (1) define; (2) design; and (3) development. The validity of the instrument and LKPD in terms of content validity and construct validity. The content validity of the instruments and LKPD respectively obtained an average percentage of 94.00% and 92.44%. While the construct validity of the instruments and LKPD respectively obtained an average percentage of 91.00% and 86.47%. This results shows that the three-tier-test diagnostic test instrument and LKPD through conceptual change model developed were declared very valid.
IMPLEMENTATION OF TPS LEARNING MODELS WITH PROBLEM POSING TO TRAIN CREATIVE THINKING ON ACID-BASE Wisma Imelda Setyowati; Rusmini Rusmini
Academy of Education Journal Vol 11 No 2 (2020): Academy of Education Journal
Publisher : Fakultas Keguruan dan Ilmu Pendidikan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (256.849 KB) | DOI: 10.47200/aoej.v11i2.394

Abstract

The research aims to be aware of the implementation of the TPS learning model with problem posing strategies on acid-base, student activity, creative thinking skills, completeness of learning outcomes, and responses of the learning model used. Use one group pretest-posttest research design and was applied to 54 high school students in class XI. The average percentage obtained by the feasibility of the learning model to 91.67% at the first meeting and to 98.60% at second meeting which both of them fall into the excellent category. The relevant activities result at the first meeting to 94,69% and irrelevant by 5,31% while activities of relevant at second meeting to 93,09% and irrelevant by 6,91%,, creative thinking skills increased by a percentage of 40.74% for the high category, 44.44% medium category, and 14.82% low category, for classical completeness learning outcomes by 88.89 %, and students' responses were 95.60% positive while 4.40% for negative responses.
DEVELOPMENT OF TEACHING MATERIALS FOR HANDLING HAZARDOUS AND NON HAZARDOUS WASTE BASED ON SETS Millaturosita Zeni Hidayana; Rusmini Rusmini
JCER (Journal of Chemistry Education Research) Vol. 5 No. 2 (2021): Volume 5 No. 2 December 2021
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jcer.v5n2.p51-60

Abstract

Abstract. The purpose of this study is to obtain the feasibility of teaching materials that handle hazardous and non-hazardous waste based on Science, Environment, Technology, and Society (SETS). The research design used refers to the 4-D development model (four-D Models) recommended by Thiagarajan which consists of four stages, namely define, design, develop, and disseminate, which is limited to the development stage. The samples in this study were 34 students of class X 2 SMK Negeri 5 Surabaya. The results showed that the validity of teaching materials obtained a percentage of 83,27% with a very valid category, observation of students 97.62% was very practical, the test of student learning outcomes increased with the acquisition of N-Gain of 0.7 in the category high, as many as 100% of students achieve mastery learning and the questionnaire responses of students as much as 90.59% are very practical. This shows that SETS-based teaching materials on hazardous and non-hazardous waste handling materials for vocational high school students are proper to be used in the learning process.
PELATIHAN PEMBUATAN PRODUK IKAN OLAHAN DI DESA CANDITUNGGAL-KALITENGAH LAMONGAN Prima Retno Wikandari; Nita Kusumawati; Rusmini Rusmini; Mirwa Adhiprahara
Jurnal ABDI: Media Pengabdian Kepada Masyarakat Vol. 1 No. 1 (2015)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ja.v1n1.p40-46

Abstract

Desa Canditunggal, Kalitengah-Lamongan mempunyai potensi sumber daya alam berupa perikanan tambak dan belum ada sentuhan teknologi untuk pembuatan produk ikan olahan. Di sisi lain, potensi sumber daya manusia khususnya ibu-ibu istri petani tambak masih belum produktif. Kedua potensi ini mendorong dilakukannya kegiatan pelatihan pembuatan produk ikan olahan dengan tujuan memberikan pengetahuan dan keterampilan kepada ibu-ibu tentang pembuatan produk ikan olahan. Metode pendekatan dilakukan dengan survey wilayah untuk melihat kondisi riil di lapangan, selanjutnya dilakukan koordinasi dengan ibu Kepala Desa selaku Pembina PKK Kelurahan untuk merencanakan pelaksaan kegiatan, penyiapan modul pelatihan berupa resep cara pembuatan ikan olahan, pelaksanaan pelatihan dalam bentuk kelompok dengan cara praktek langsung dengan pendampingan instruktur dari tim PKM, dan pengisian angket untuk mengetahui respon peserta terhadap pelaksanaan pelatihan. Sesuai dengan jenis ikan yang dibudidayakan, serta kemudahan memperoleh bahan lain dan alat yang dibutuhkan, maka jenis produk ikan olahan yang dilatihkan adalah bakso dan abon ikan bandeng, serta nugget ikan nila. Peserta berhasil dengan baik membuat produk sesuai dengan kharakteristik yang diinginkan. Hasil angket respon peserta menyatakan bahwa mereka baru pertama kali mendapatkan pelatihan produk ikan olahan, dan sangat tertarik dengan kegiatan ini. Mereka berminat untuk mencoba sendiri di rumah, mengajarkan ke ibu-ibu PKK lainnya di sekitar mereka, bahkan berkeinginan untuk membuka usaha kecil.
Co-Authors Anis Mualifah Anita Anggrahini Annisa Putria Dewitasari ARDITH WULANDARI, CRISLIA Bertha Yonata Crislia A Wulandari Dian Novita Dinda Karunia Putri Dwi Anggraeni Riswana Eka Haslinda Fatmawati Galuh Isna Permata Heriono Heriono Iktifaul Ulya Lydiana Eka Nabilla Millaturosita Zeni Hidayana Mirwa Adhiprahara Mustaji Mustaji Nita Kusumawati Nuniek Herdyastuti Prima Retno Wikandari Sari Edi Cahyaningrum Sisilia Fil Jannati Sitti Kholifah Amartyah Sri Poedjiastoeti Titik Taufikurrohmah Wisma Imelda Setyowati