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AR-RAZI Jurnal Ilmiah

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Published by Universitas Muhammadiyah Pontianak

ISSN : 23027843 EISSN : 25034448 DOI : -

Core Subject : Science,

Chemistry

Jurnal Ilmiah Ar Razi terbit dua kali dalam setahun pada bulan Februari dan Agustus. Jurnal Ilmiah Ar Razi merupakan wahana publikasi ilmiah dari hasil penelitian atau telaah artikel yang dilakukan oleh dosen maupun mahasiswa Program Studi Pendidikan Kimia FKIP Universitas Muhammadiyah Pontianak.

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Articles 139 Documents

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KAJIAN KEMAMPUAN SISWA DALAM PEMBELAJARAN KIMIA DITINJAU DARI LITERASI SAINS PISA KELAS XII SMAN 1 TELUK KERAMAT Tomi Tomi; Dini Hadiarti; Rody Putra Sartika
Jurnal Ilmiah Ar-Razi Vol 4, No 2 (2016): Jurnal Ilmiah Ar-Razi
Publisher : Universitas Muhammadiyah Pontianak

ABSTRACT Science literacy is a key to face the challenge in this global era. It becomes a demand to be mastered by every individual whether in daily life or work field. An individual who is aware of science can use the scientific information that he has, to solve the problem in daily life. This research is done to give a description about twelve grade students' ability in learning chemistry based on PISA science literacy in SMAN 1 Teluk Keramat. The method applied in this research is quantitative descriptive. The sample of this research were twelve grade students of SMAN 1 Teluk Keramat. To collect data, the writer implemented some techniques. Those are measurement technique and direct communication technique. The instruments in collecting data in this research are students' achievement test in the form of essay and multiple choice in a passage. Based on the research findings, it showed that chemistry learning in SMAN 1 Teluk Keramat have already trained students' ability in science literacy. It is found that the students' ability in science literacy is about 68,91% for the content science ability which is categorized as intermediate level and 68,91 for the context science ability, categorized as intermediate level. Keywords: Students' ability, science literacy, chemistry learning

EFEKTIVITAS METODE PEMBELAJARAN PROBLEM POSING BERSETTING ADVANCE ORGANIZER PADA MATERI REAKSI REDOKS TERHADAP HASIL BELAJAR SISWA KELAS X SMA NEGERI 3 PONTIANAK Ragil Triani; Muhamad Agus Wibowo; Raudhatul Fadhilah
Jurnal Ilmiah Ar-Razi Vol 5, No 2 (2017): JURNAL ILMIAH AR-RAZI
Publisher : Universitas Muhammadiyah Pontianak

ABSTRAK This research had the purpose to find out the difference between students’ learning outcomes which were taught using learning problem posing method set in advance organizer and lecture method as well as to know how large the effect problem posing set in advance organizer on students’ learning outcomes in class X of SMA Negeri 3 Pontianak on redox reactions. This research was Quasi Experimental Nonequivalent Control Group design. The sampling system was purposive sampling, based on the sampling technique, X F was choosen as control class and X I was choosen as experimental class. The technique of data collection used measurement, direct communication, and direct observation techniques. The result of data analysis showed the mean score of pretest-posttest in experimental class (88,37) was higher compared to control class (69,6). According to the statistical analysis of U-Mann witney test on posttest score (α= 0,05), it was obtained the Pvalue which was 0,000 which mean that there was difference between the ability of learning outcomes in experimental and control class. The calculation using effect size showed ES=0,72 which meant problems posing set in advance organizer effected students’ learning outcomes which was 26,42%. Learning problem posing method set in advance organizer had medium effect on students’ learning outcomes.Keywords: advance organizer, learning outcome, problem posing, redox reactions

PENGARUH METODE PRAKTIKUM BERBASIS PROBLEM BASED LEARNING TERHADAP HASIL BELAJAR DAN KETERAMPILAN PROSES SAINS SISWA PADA MATERI KELARUTAN DAN HASIL KALI KELARUTAN KELAS XI IPA MAN 2 FILIAL PONTIANAK Fatimah Fatimah; Mahwar Qurbaniah; Tuti Kurniati
Jurnal Ilmiah Ar-Razi Vol 4, No 2 (2016): Jurnal Ilmiah Ar-Razi
Publisher : Universitas Muhammadiyah Pontianak

ABSTRACTThis study investigated to determine the effect of problem based on practical to the students’learning outcomes and science process skill on Solubility and Solubility Product Constant materials at grade XI of Science class, MAN 2 FILIAL Pontianak. Using pre experimental and one-group pretest post-test designs, this study employed grade XI students of Science class. The data collection technique used were measurement and observation. While the instruments utilized were pre-test, post-test, and science process skill test. The results of learning outcomes analysis of pretest, post-test, and science process skill test by using Wilcoxon (SPSS 17,0 for windos) and run with an alpha level of .05 (5%) revealed that this test rejected Ho and accepted Ha (P value (0,00) < (0,05). The Effect Size (ES) of learning outcomes was 3,53 and considered high. The Z table contributed significant influence of 49,98%. Furthermore, the Solubility Product Constant indicated 2,90 and considered high, as well. The Z table contributed significant influence of 49,81%. As a result there was correlation of problem based on practical to the students’ learning outcomes and science process skill on Solubility and Solubility Product Constant materials.Keywords: learning outcomes, problem based on practical to the students’ learning outcomes, science process skill

DESALINASI AIR ASIN MENGGUNAKAN MEMBRAN SELULOSA BAKTERI AKRILAMIDA-ASETAT Raudhatul Fadhilah
Jurnal Ilmiah Ar-Razi Vol 5, No 1 (2017): Jurnal Ilmiah Ar-Razi
Publisher : Universitas Muhammadiyah Pontianak

ABSTRACTClean water crisis that still happening in some parts of the world led to the development of water processing techniques continue to be made. One source of water comes from the oceans which have a high salt density. Water processing techniques that developing rapidly in the processing of salty water is membranes desalination. In this study, the cellulose membrane of acrylamide bacteria was synthesized using the basic ingredients of a banana peel. Escalation of membrane selectivity in absorbing salts and minimizing blockage (fouling) was performed by doping acetic acid into the cellulose membrane of acrylamide bacteria. Measurement by using spectrophotometry UV-Vis technique (λ = 490 nm) on a standard series of NaCl concentration of 0 ppm, 250 ppm, 500 ppm, 2000 ppm obtained line equation y = 0.0002x + 0.0986 R ² = 0.8286. The results showed that the rejection coefficient (R) of bacterial cellulose which is doped with acetic acid was higher (R = 62.15%) than the cellulose acrylamide bacteria without acetic acid (R = 44.65%). Thus, the cellulose membrane of acrylamide bacteria which is doped with acetic acid is more selective thanthe cellulose membrane of acrylamide bacteria without doped with acetic acid. The addition of acetic acid causes the membrane pore tighter, therefore the membrane's ability to absorb the salt also increases.Keywords: acrylamide, saltwater, fouling, membrane, acetate bacterial cellulose

ANALISIS KETERAMPILAN DASAR MENGAJAR MAHASISWA CALON GURU KIMIA BERBASIS MODEL CORE TEACHING STANDARDS PADA MATA KULIAH PPL 1 (MICROTEACHING) UNIVERSITAS MUHAMMADIYAH PONTIANAK Rusninawiyah Rusninawiyah; Tuti Kurniati; Rizmahardian Azhari Kurniawan
Jurnal Ilmiah Ar-Razi Vol 6, No 1 (2018): JURNAL ILMIAH AR-RAZI
Publisher : Universitas Muhammadiyah Pontianak

Basic teaching skills of Core Teaching Standards model for prospective Chemistry teachers are important in enhancing the competence as they deal with world of education. This study aimed at determining the process of teaching and learning activities as well as basic teaching skills using Core Teaching Standards among prospective chemistry in Microteaching Program 1 (PPL 1) class at Muhammadiyah University of Pontianak. Using descriptive design and quantitative approach, 16 students participated as the subjects. The techniques used in this research were direct observation and direct communication. The data collection technique included observation sheet and interview guide that covered 10 standards. They were student development, learning difference, learning environment, materials, application of materials, assessment, lesson plan, teaching strategy, professionalism in teaching, and leadership and collaboration. The study reveals that the students gained the highest score on standard 9 (professionalism in teaching) by 81,65% and was considered very good. Whereas, they hed the lowest score on standard 6 (assessment) by 58,21% and was considered fair by 58,21%.Keywords: Core Teaching Standards, basic teaching skills, Microteaching 1 (PPL 1)

PENGARUH MODEL PEMBELAJARAN KOOPERATIF TIPE TEAMS GAMES TOURNAMENT (TGT) BERBANTUAN QUESTION BOX TERHADAP HASIL BELAJAR SISWA PADA MATERI KELARUTAN DAN HASIL KALI KELARUTAN KELAS XI IPA MAN 1 PONTIANAK Puspa Sari; Tuti Kurniati; Fitriani Fitriani
Jurnal Ilmiah Ar-Razi Vol 5, No 1 (2017): Jurnal Ilmiah Ar-Razi
Publisher : Universitas Muhammadiyah Pontianak

ABSTRACTThe low level of students’ learning outcomes at MAN 1 Pontianak on solubility and the result of solubility multiply was caused by lack of students’ understanding on basic concept. This research had the purpose to find out the difference between the students’ learning outcomes which were taught by using Teams Games Tournament (TGT) type of Cooperative Learning Method Assisted Question Box and the lectures teaching method assisted Question Box as well as to know the effect of TGT type of Cooperative Learning Method Assisted Question Box. This research was Quasi Experimental Control Pretest Posttest Group Design. The sampling system was simple random sampling technique. The techniques of data collection used measurement technique, observation and direct communication (interview). The result of data analysis showed that the mean score of experimental class was 73.8 which was higher compared to the mean score of control class which was 62.97. The result of statistical analysis using U-Mann whitney test with α 5% obtained 0.00 value which was smaller than α value (0.00 <0.05). It meant that there was difference between the learning outcomes in experimental and control class. The calculation result using effect size showed the value of ES 0.91 which was included in high category. It could be concluded that TGT type of Cooperative Learning Method assisted Quesion Box gave high effect on the improvement ofstudents’ learning outcomes which was 31.86 %. Keywords: Learning Outcomes, Solubility and The Result of Solubility Multiply, TGT, QuestionBox

KOMPARASI MODEL PEMBELAJARAN INKUIRI TERBIMBING DENGAN INKUIRI BEBAS TERHADAP KETERAMPILAN PROSES SAINS SISWA PADA MATERI HUKUM KEKEKALAN MASSA KELAS X MIPA SMA NEGERI 1 PONTIANAK Daniel Erikko; Mahwar Qurbaniah; Tuti Kurniati
Jurnal Ilmiah Ar-Razi Vol 6, No 1 (2018): JURNAL ILMIAH AR-RAZI
Publisher : Universitas Muhammadiyah Pontianak

This research aimed to know students’ comparison between the process skills of science using controlled inquiry and free inquiry learning X grade at MIPA SMA Negeri 1 Pontianak. This research was based on the importance of the students’ skill in the learning process of the scientific chemical to encourage students to be active in the learning process. Using quasy experimental method of nonquivalent control group design. Data collection techniques used were observation and measurement techniques. The data collecting tools were measurement and direct observation. The data analysis used were non-parametical statistic using U-Mann Whitney test and the value of the Gain. The analysis value of science process skill test class between controlled inquiry and free inquiry using U-Mann Whitney test was obtained p value (0.004 < 0.05), means there was the difference between the process skill science students’ taught with the model of controlled inquiry and the model of free inquiry. The gain value used was to find out the most effective learning model. The analysis of gain value using free inquiry (0.79 with high category) was higher than using controlled inquiry (0.69 with medium categories). It showed that the model of free inquiry more effective than controlled inquiry model to improve the process skill of science on mass constancy material X grade at MIPA SMAN 1 Pontianak.Keywords: The process skill of science, Comparison, Controlled inquiry, Free inquiry, Law of mass constancy

ANALISIS KESULITAN BELAJAR SISWA PADA MATA PELAJARAN KIMIA KELAS X DI SMA NEGERI 1 SUNGAI AMBAWANG Yakina Yakina; Tuti Kurniati; Raudhatul Fadhilah
Jurnal Ilmiah Ar-Razi Vol 5, No 2 (2017): JURNAL ILMIAH AR-RAZI
Publisher : Universitas Muhammadiyah Pontianak

ABSTRACTThis study aimed at discovering the students’ in chemistry class at grade X of SMA Negeri 1Sungai Ambawang. A qualitative descriptive method was employed in this study. As many as62 students participated as the subjects. Two techniques were used in this study. They weremeasurement and indirect communication techniques. The indirect technique used 30 testquestions and 30 items of questionnaire. The result of analysis indicated that the students who had problems in understanding the terms were 48,99 %, the students who had problem in understanding the concept were 41,32%, and the students who had problems in calculating were 70,97%. The results of the questionnaire showed that the internal factors of motivation and interest were 59,25%. This is considered as the influential factor in the students’ difficulties. While the external factor, with the average percentage of 85,4% deal with the students’ difficulties were family, facilities and infrastructures, family condition, school, teachers, learning facilities, school building, mass media, and neighborhood. This is considered as the factor that didn’t influent the students’,difficulties in chemistry class.Keywords: Analysis, learning difficulties, chemistry learning

PENGARUH METODE PEMECAHAN MASALAH BERBANTUAN BUKU SAKU TERHADAP HASIL BELAJAR PADA MATERI POKOK STOIKIOMETRI DI KELAS X SMA NEGERI 1 SUNGAI RAYA Purwati Purwati; Mahwar Qurbaniah; Raudhatul Fadhilah
Jurnal Ilmiah Ar-Razi Vol 4, No 2 (2016): Jurnal Ilmiah Ar-Razi
Publisher : Universitas Muhammadiyah Pontianak

ABSTRACTThis research had the purpose to find out the difference between students’ learning outcomes which were taught using problem solving method assisted pocket book and lectures method assisted pocket book as well as to know how large the effect of problem solving method assisted pocket book on students’ learning outcomes in class X of SMA Negeri 1 Sungai Raya on stoichiometry material. This research was Quasi Experimental Nonequivalent Control Group design. The sampling system was purposive sampling technique which considered the score of final exam. Based on the sampling technique, X C was choosen as control class and XA was choosen as experimental class. The techniques of data collection used measurement, direct communication, and direct observation techniques. The result of data analysis showed the mean score of pretestposttest in experimental class (73.1) was higher compared to control class (43.6). According to the statistical analysis of U-Mann witney test on pretest score (α= 0,05), it was obtained the P value which was 0.766 which meant that there was no difference between the ability of learning outcomes in experimental and control class. The calculation using effect size showed ES=1.88 which meant problem solving method assisted pocket book affected students’ learning outcomes which was 46.99 %. Problem solving method had high effect on students’ learning outcomes because the students were motivated to find the information or solution to solve the problem.Keywords : Pocket Book, Learning Outcome, Problem Solving Method, Stoichiometry

PENGARUH PEMBELAJARAN KOOPERATIF TIPE NUMBERED HEADS TOGETHER (NHT) BERBANTUAN MIND MAP TERHADAP KEMAMPUAN MULTIPELREPRESENTASI SISWA PADA MATERI HIDROKARBON KELAS X SMA NEGERI 1 SUNGAI AMBAWANG Margarita Medina Icha; Dedeh Kurniasih; Fitriani Fitriani
Jurnal Ilmiah Ar-Razi Vol 5, No 2 (2017): JURNAL ILMIAH AR-RAZI
Publisher : Universitas Muhammadiyah Pontianak

ABSTRACTThe purpose of this research to determine a difference and the influence of cooperative learning model Numbered Heads Together (NHT) assisted Mind Map multiple representation the ability of students. This research was Quasi Experimental Research with research design Nonequivalent Control Group Design. Samples were selected used technique purposive sampling, the class X3 as an experimental class and the class X2 as a control class. Data collected techniques in this study was the measurement techniques, direct observation and communication techniques. Data collected used the achievement test, the observation sheet and questionnaire. Based on the results of data analysis used non-parametric test U-Mann Whitney obtained significant value 0.000 < 0.05 which showed that there was differences in the ability multiple representation control class and experimental class. Effect Size value obtained is 0.78 which belongs to the category of medium. It can be concluded that the cooperative learning model Numbered Heads Together (NHT) assited Mind Map affect the ability of students multiple representation with contribution as 28.23%.Keywords: Hydrocarbons, mind map, multiple representation, Numbered Heads Together

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