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ADSORPSI ION LOGAM Cd(II) OLEH SBEG-g-PMMA Maria Paristiowati, ; Yusmaniar, ; Ratna Choiryana,
Matematika dan Sains Vol 18, No 1 (2011)
Publisher : Matematika dan Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The propose of research is to find the capability of the SBEG-g-PMMA to adsorb Cd(II) ion. This research used batch method with various of pH, contact time, and initial concentration of solution. Characterization was conducted by FTIR and AAS. The IR spectrum of the SBEG-g-PMMA showed the presence of carbonil group (C=O) at 1735.4 cm-1 and C-O ester at 1244.14 cm-1. While the optimum adsorption capasity of the SBEG-g-PMMA to Cd(II) ion was obtained at pH of 6, contact time of 10 minutes, and initial concentration of 300 ppm. Adsorption of Cd(II) ion using the SBEG-g-PMMA followed the Langmuir isotherm with maximum adsorption capasity of 47.60 mg/g adsorbent.-1 and C-O ester at 1244.14 cm-1. While the optimum adsorption capasity of the SBEG-g-PMMA to Cd(II) ion was obtained at pH of 6, contact time of 10 minutes, and initial concentration of 300 ppm. Adsorption of Cd(II) ion using the SBEG-g-PMMA followed the Langmuir isotherm with maximum adsorption capasity of 47.60 mg/g adsorbent.
VIDEO KIMIA ONLINE BERBASIS PEMBELAJARAN KONTEKSTUAL SEBAGAI ALTERNATIF MEDIA PADA MATERI ASAM BASA DI SMA Paristiowati, Maria; N, Muktiningsih; Rahma, Wanda Amelia
JURNAL LENTERA [PENDIDIKAN PUSAT PENELITIAN LPPM UM METRO] Vol 2, No 1 (2017): JUNE 2017
Publisher : Lembaga Penelitian UM Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/jlplppm.v2i1.537

Abstract

This study aims to produce video of contextual learning as an alternative media on the acid-base in grade 11. The study was conducted using method of Research and Development (R&D) of Borg and Gall. Stages of the study are: (1) research and information collecting, (2) planning, (3) develop primary form of product, (4) preliminary field testing, (5) main product revision, (6) main field testing, (7) operational product revision, (8) operational field testing, (9) final product revision. The results of product testing at the final stage by subject matter experts and media experts give score from 75% -100%. This criterion are good and very good. While the results of trial by users (students and teachers) give score from 81.3% -88.9%, which means very good. The result of this study was concluded that video online can used as a media of learning contextual-based chemistry.
Sustainability Development-Based Agroindustry in Chemistry Learning to Improve the Preservice Chemistry Teachers’ Competence Nur Azizah Putri Hasibuan; Maria Paristiowati; Erdawati Erdawati
Tadris: Jurnal Keguruan dan Ilmu Tarbiyah Vol 6, No 1 (2021): Tadris: Jurnal Keguruan dan Ilmu Tarbiyah
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (736.885 KB) | DOI: 10.24042/tadris.v6i1.8346

Abstract

This research aims to integrate agroindustry and sustainability development into chemistry learning through the Project-Based Learning model (PjBL) to improve the competence of preservice chemistry teachers. This research employed the qualitative method. The Summer Course program was held collaboratively by Universitas Negeri Jakarta, Institut Pertanian Bogor, and Villanova University. The program was implemented online within six weeks due to the COVID-19 pandemic. The participants consisted of 25 students. The data had been collected through interviews, questionnaires, observations, student portfolios, and reflection journals. Based on the analysis, several projects developed by preservice chemistry teachers increased the application to solve sustainability problems in the agroindustry field. Furthermore, the project was expected to be developed into a natural product that can increase the agroindustry value for coffee farmers. The findings also foster the preservice chemistry teachers to improve their creative thinking, collaboration, higher-order thinking skills, and problem-solving skills. Besides, they developed their communication and collaboration after participating in the program. The paper outline is a project development learning experience in a sustainable field and would be a good resource for student-teacher involvement in teacher education.
FLIPPED CLASSROOM: ALTERNATIVE OF THE MODEL OF LEARNING TO IMPROVE STUDENT LEARNING OUTCOMES IN K-10 Maria Paristiowati; Ucu Cahyana; Annisa Nur Fitria
IJER - INDONESIAN JOURNAL OF EDUCATIONAL REVIEW Vol 4 No 1 (2017): Indonesian Journal of Educational Review (IJER)
Publisher : Program Pascasarjana Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (694.235 KB) | DOI: 10.21009/IJER.04.01.14

Abstract

This study aimed to determine the effect of applying the flipped classroom model to students’ learning outcomes in oxidation-reduction reactions. It was conducted in SMAN 47 Jakarta. Research method is quasi-experimental with nonequivalent control group design. The sample consisted of 72 students were taken with purposive sampling. Independent variables are the flipped classroom model and direct instructional. Chemistry learning outcome became a dependent variable. The flipped classroom model is invers of the traditional learning model. Students learn the instructional material at home through videos and discussions in class. Analysis of the requirement’s test showed that the data were normally distributed and had homogeneous variances. Hypothesis testing showed different results in a significant level of 0.05. The differences of average value between pretest and posttest of the experimental group is 12.50. While the differences in the control group was 7.17. It can be concluded that the difference of average value between pretest and posttest of the experimental group is higher than the control group. The flipped classroom model can improve students’ learning outcomes in the oxidation-reduction reaction.
GREEN CHEMISTRY-BASED EXPERIMENTS AS THE IMPLEMENTATION OF SUSTAINABLE DEVELOPMENT VALUES Maria Paristiowati; Zulmanelis Zulmanelis; Muhamad Fazar Nurhadi
Jurnal Tadris Kimiya Vol 4, No 1 (2019)
Publisher : Department of Chemistry Education, UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/jtk.v4i1.3566

Abstract

The development of a chemistry experiment based on green chemistry aims to train and familiarize students to save on the use of chemicals, replace them with safer materials and minimize waste generated from experimental activities. Research and development methods are used to develop experimental modules based on green chemistry. The stages of research and development consist of needs analysis, product development, and product testing. The developed experiment module, implements three principles of green chemistry, i.e. preventing waste, safer chemical planning and safe use of solvents. The feasibility test by expert judgement on the material and media obtained scores 91.9% and 94.7% respectively. The results of the trials in small groups and large groups showed that the developed module was feasible to use. Student perceptions after using the module show positive results. The conclusions from the results of the feasibility test and the trial conducted indicate that the green chemistry-based kinetics' module has good criteria and in accordance with the wishes and needs of students. In addition, the implementation of this module in the kinetics experiment succeeded in making students understand and apply the principles of green chemistry. As many as 90% of students realize that there is a relationship between the application of the principles of green chemistry and the educational paradigm for sustainable development. The use of kinetics' module based on green chemistry also saved the cost of experiment material requirements by 75% per year.
ANALYSIS THE 21ST CENTURY SKILLS OF STUDENTS IN CHEMICAL EQUILIBRIUM LEARNING WITH FLIPPED CLASSROOM-COLLABORATIVE PROBLEM SOLVING MODEL Prita Atria Karyadi; Maria Paristiowati; Afrizal Afrizal
Jurnal Tadris Kimiya Vol 5, No 1 (2020)
Publisher : Department of Chemistry Education, UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/jtk.v5i1.7971

Abstract

This study aimed to analyze the 21st century skills of students in learning chemical equilibrium with the Flipped Classroom-Collaborative Problem Solving model. Flipped Classroom is a learning model that students learn first outside the classroom through video, then carry out active activities in class such as discussions, presentations, making posters, and doing practicum. Collaborative problem solving is done when students discuss in solving problems for each learning activity. The research method used descriptive qualitative method. Data collection techniques were: observation, interviews, questionnaires, and reflective journals. Data analysis consisted of several stages, namely data collection, data reduction, data presentation, and verification or conclusions. Based on data analysis, this learning model made students active in learning and also made the students learn independently outside the classroom using mobile learning and searching some sources of references. In addition, students were actively involved in problem solving discussions, presentations, making projects, and practicums that were designed by students themselves. Thus it can be concluded that the Flipped Classroom-Collaborative Problem Solving learning model can train and grow students critical thinking skills, creativity and innovation skills, communication skills, and collaborative skills in learning chemical equilibrium.
PENGEMBANGAN BAHAN AJAR BERBASIS ICT PADA MATA PELAJARAN IPA-KIMIA SMP Maria Paristiowati; Irma Ratna K; Aftuni Aftuni
Jurnal Riset Pendidikan Kimia (JRPK) Vol 1 No 1 (2011): Jurnal Riset Pendidikan Kimia (JRPK), Volume 1 Nomor 1 (2011)
Publisher : LPPM Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (120.95 KB) | DOI: 10.21009/JRPK.011.03

Abstract

Pada penelitian ini dilakukan pengembangan bahan ajar berupa CD pembelajaran untuk kelas VII SMP dengan materi perubahan fisika dan kimia (reaksi kimia). Tahap-tahap dalam penelitian dan pengembangan yang telah dilakukan ini meliputi: (1) analisis kebutuhan, (2) tahap pengembangan produk, (3) tahap uji kelayakan dan uji coba. Analisis kebutuhan yang dilakukan terhadap siswa kelas VII SMPN 5 Bekasi sebanyak 39 responden dengan hasil, 100% responden pernah menggunakan komputer dengan interval yang cukup sering (79,92%). Lebih dari setengah responden (66,67%) menyatakan bahwa materi IPA (kimia) kelas VII cukup sulit. Tahap pengembangan produk diawali dengan studi literatur untuk mendapatkan isi bahan ajar yang dibuat, pembuatan bahan ajar berupa CD interaktif. Bahan ajar dibuat dengan menggunakan fasilitas program macromedia Flash yang interaktif, berisikan animasi aplikasi reaksi kimia, proses terjadinya reaksi kimia, dan latihan soal yang berisikan evaluasi berupa soal pilihan ganda. Alokasi waktu isi CD pembelajaran ini berkisar antara 15 – 20 menit. Tahap uji kelayakan oleh ahli materi, media dan guru memberikan hasil bahwa CD pembelajaran yang telah dikembangkan layak untuk digunakan. Sedangkan uji coba kelompok kecil dan besar dilakukan pada siswa kelas IX SMPN 5 Bekasi dan SMP Terpadu Widya Duta Bekasi memberikan hasil interpetrasi yang sangat baik sehingga dapat disimpulkan bahwa CD pembelajaran materi perubahan fisika dan kimia kayak digunakan. Kata kunci: Bahan ajar berbasisICT, Perubahan Fisika & Kimia, Penelitian Pengembangan
PENGEMBANGAN BAHAN AJAR PENDUKUNG DALAM BENTUK KOMIK UNTUK SISWA SMP KELAS VII PADA MATERI UNSUR, SENYAWA, DAN CAMPURAN Neli Nilawati; Maria Paristiowati; Darsef Darwis
Jurnal Riset Pendidikan Kimia (JRPK) Vol 3 No 1 (2013): Jurnal Riset Pendidikan Kimia (JRPK), Volume 3 Nomor 1 (2013)
Publisher : LPPM Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (107.864 KB) | DOI: 10.21009/JRPK.031.05

Abstract

This study aims to generate and test the feasibility of supporting teaching materials in the form of comics for junior high school students on elements, compounds and mixture subject. The study was conducted in September 2011 - May 2012 at Junior High School 47 and 148 Jakarta. It used a method of research and development which consists of three phases, namely requirements analysis phase, the stage of product development and product testing phase. Based on the analysis of the needs of students as much as 97.14% of respondents support the development of supporting materials in the form of comics, and 82.86% of respondents expressed interest in learning science students with the comic. The results of product trials to matter experts, linguists, media experts and pilot testing of products to students and teachers in small and large scale show that the interpretation for the comic value of learning that has made presentations range 72.9% - 90% so that these materials have been both viable and can be used as support materials for teaching science to the material elements, compounds and mixtures. Keywords: Teaching Material Support, Comics Learning, Methods of Research and Development
PIROLISIS SEDERHANA LIMBAH PLASTIK DAN IMPLEMENTASINYA SEBAGAI SUMBER BELAJAR BERBASIS EDUCATION FOR SUSTAINABLE DEVELOPMENT (ESD) PADA PEMBELAJARAN KIMIA Afwu Hayyi Amyyana; Maria Paristiowati; Fera Kurniadewi
Jurnal Riset Pendidikan Kimia (JRPK) Vol 7 No 1 (2017): Jurnal Riset Pendidikan Kimia (JRPK), Volume 7 Nomor 1 (2017)
Publisher : LPPM Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (585.544 KB) | DOI: 10.21009/JRPK.071.03

Abstract

This study aims to produce a plastic pyrolysis learning resource in the form of books based on Education for Sustainable Development. The development of ESD-based learning resources is done by Borg & Gall (2006) research and development method which is then adjusted into three stages: needs analysis, development stage, and pilot phase. Learning resources produced by reading books on plastic waste issues and handling through a chemical approach, presented with a magazine display, using communicative language, and adapted to chemistry teaching materials class XI SMA of curriculum 2013. Percentage of test results feasibility by material and Language experts is 89.63%, while the results of feasibility tests by media experts amounted to 92.23%, with each reliability of 0.8 and 0.77. The results of ESD-based learning by small-scaled learners are 85% and large scale is 91.44%. Interpretation of assessments of learning resources by experts and learners as a whole has very good criteria for each assessment indicator. Therefore, it can be concluded that the ESD-based learning source developed has been feasible to be used as a reading book to support chemistry learning. Keywords: Plastic Waste, Plastic Pyrolysis, Education for Sustainable Development.
Cover Info & Contents Maria Paristiowati
Jurnal Riset Pendidikan Kimia (JRPK) Vol 7 No 1 (2017): Jurnal Riset Pendidikan Kimia (JRPK), Volume 7 Nomor 1 (2017)
Publisher : LPPM Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1105.188 KB)

Abstract

Cover Info & Contents JRPK Volume 7 Nomor 1 (2017)