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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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PENGEMBANGAN MEDIA FLASH MATERI IKATAN KIMIA SISWA KELAS X SMA NEGERI 1 PONTIANAK Ananda Rizki Shelawaty; Dini Hadiarti; Raudhatul Fadhilah
Jurnal Ilmiah Ar-Razi Vol 4, No 2 (2016): Jurnal Ilmiah Ar-Razi
Publisher : Universitas Muhammadiyah Pontianak

ABSTRACTThis study aimed by the students’ low mastery score on Chemical Bond material at SMA Negeri 1 Pontianak. The mastery score gained by the students was only 44,3%. Based on the results of the questionnaires given to the students, they tend to study by using computer than power point program and video that have been used by the teachers. Therefore, this study aimed to develop teaching materials of Chemical Bond flash media for the students of grade X, SMA Negeri 1 Pontianak. A 3D (Define, Design, and Develop) development model suggested by Thiagarajan was carried out in this study. The data collection technique used were indirect communication, measurement, and observation. While the instruments were questionnaire sheets, pre-test and posttest questions, and observation sheet. The feasibility of the flash media developed was based on the aspects of validity, practicality, and effectiveness. The results obtained in this study were: (1) the average score of the flash media validity was 89.78% and was considered valid, (2) the practicality of the media based on the students’ response was 80.02% and was considered very strong and the teacher’s response was 75% and considered strong, and (3) the effectiveness of the media based on the learning outcomes showed significant results between before and after using the media (0.000 <0.05). As a result, flash media is regarded successful developed for the students of SMA Negeri 1 Pontianak and it is applicable to teach Chemical Bond material. Keywords: Chemical Bond, Flash media, media development

PENGEMBANGAN LEMBAR KERJA SISWA (LKS) PRAKTIKUM BERBASIS INKUIRI TERBIMBING PADA MATERI LARUTAN PENYANGGA DI SMA NEGERI 4 SUNGAI RAYA Wiji Tri Utari; Raudhatul Fadhilah; Fitriani Fitriani
Jurnal Ilmiah Ar-Razi Vol 6, No 1 (2018): JURNAL ILMIAH AR-RAZI
Publisher : Universitas Muhammadiyah Pontianak

This research aimed to develop student worksheet for experiment based on guided inquiry in buffer solution at SMA Negeri 4 Sungai Raya which are valid, practical, and effective. The development of student worksheet in this research used Borg & Gall model. The results of this research showed that : (1) This student worksheet was stated as a valid result with an average score 1,00 which classified very high criteria. (2) This student worksheet was stated as a practical result with the percentage of preliminary field testing was 83,71% and 85,65% in main field testing which classified very high criteria. (3) This student worksheet was stated as an effective result with the classical completeness percentage was 76,47%. Based on the results, it can be concluded that the worksheet for experiment based on guided inquiry can be used in learning process.Keywords: Guided Inquiry, Buffer solution, Student worksheet for experiment.

AKTIVITAS BELAJAR SISWA PADA MATERI STUKTUR ATOM KELAS X MIA SEKOLAH MENENGAH ATAS NEGERI 4 PONTIANAK Lesi Weni Sari; Cawang Cawang; Rizmahardian Azhari Kurniawan
Jurnal Ilmiah Ar-Razi Vol 5, No 1 (2017): Jurnal Ilmiah Ar-Razi
Publisher : Universitas Muhammadiyah Pontianak

ABSTRACT This research is motivated by the low student activity, which affects learning outcomes. The aims of this research were to describe and determine students activity on atomic structure lesson during chemistry teaching process. About 36 students of class X MIA 5 was choseen as samples in this research using purposive sampling method. The students activity data were collected through observations, questionnaires and interviews, using validated instruments. The results showed that the highest aspect of student activity was emotional activity (76,85%), and then declined gradually to listening activity(74,65%), visual activity (67,36%), writing activity (61,46%), and oral activity (38,42%). Emotional activity showed the highest score since students were eager to study chemistry subject, especially atomic structure lesson mean while oral activity was the lowest activity since the students were not confident to ask questions and express opinions.Keywords: Students’ learning activity, atomic structure

PENGARUH PENDEKATAN MODIFICATION OF RECIPROCAL TEACHING PADA MATERI REDOKS TERHADAP AKTIVITAS DAN HASIL BELAJAR SISWA KELAS X SMA KOPERASI PONTIANAK Retno Anjar Kusuma; Tuti Kurniati; Rizmahardian Azhari Kurniawan
Jurnal Ilmiah Ar-Razi Vol 6, No 1 (2018): JURNAL ILMIAH AR-RAZI
Publisher : Universitas Muhammadiyah Pontianak

The background of this research was the lack of students’ learning activities in the classroom and the low of student learning outcomes in the oxidation reduction material. This research aimed to determine whether there are any differences in the activities and learning outcomes of students who were taught using modification of reciprocal teaching approach and students who were taught using the expository approach and how much the influence of modification of reciprocal teaching approach to the activities and student learning outcomes. This research used experimental method with nonequivalent control group design. Samples were selected using saturation sampling technique. Data collection techniques used were measurement, observation and direct communication techniques. Data collection tools used were learning result test, observation sheet and interview guide. Based on the results of statistical analysis using SPSS 22.0, it can be concluded that there were differences in activity and student learning outcomes students who were taught using modification of reciprocal teaching approach and expository approach. The value of effect size showed that the effect of 92.07% approach to student learning activities and 99.20% of student learning outcomes. So it can be concluded that the modification of reciprocal teaching approach can be used to improve student activity and learning outcomes.Keywords: Learning activities, Learning outcomes, Modification of Reciprocal Teaching, Redox

PENGARUH PEMBELAJARAN KOOPERATIF TIPE MAKE A MATCH PADA MATERI REAKSI REDUKSI OKSIDASI TERHADAP AKTIVITAS DAN HASIL BELAJAR SISWA DI KELAS X SMA NEGERI 1 SAMBAS Ririn Arista; Mawardi Mawardi; Rizmahardian Azhari Kurniawan
Jurnal Ilmiah Ar-Razi Vol 5, No 2 (2017): JURNAL ILMIAH AR-RAZI
Publisher : Universitas Muhammadiyah Pontianak

ABSTRACTOne of the ways to improve student’slearning activity and learning outcomes using studentcentered learning model. Therefore, this study applied cooperative learning model make amatchtype and analyzed its impact on student’s learning activity and learning outcome. This study was Quasi Experimental Research using Nonequivalent Control Group Design. The samples were selected by using purposive sampling technique, which are XD as the experiment class and XG as the control class. Data was collectedusing measurement, observation, and direct communication techniques. Learning outcome test, observation sheets and interview guidelines were used as data collection tools. Based on the data analysis which uses non-parametric U-Mann Whitney showed that there were differences in students learning activity and learning outcome between experiment class and control class. The Effect sizethat was obtained for student’s learning activities and learning outcomes were 1.17 and 0.86, respectively. Both are in high category of influence, which influenced amounted to 36.65% of the student’s learning activity and 30.52% of the student’slearning outcome. This study shows that cooperative learning model make a match has a major effect toward student’s learning activity and learning outcome.Keywords: Learning Activity, learning outcomes, make a match, reduction-oxidation

ANALISIS KEMAMPUAN PSIKOMOTORIK MAHASISWA SEMESTER III PROGRAM STUDI PENDIDIKAN KIMIA UNIVERSITAS MUHAMMADIYAH PONTIANAK Hilda Weny Jayanti; Rody Putra Sartika; Rizmahardian Azhari Kurniawan
Jurnal Ilmiah Ar-Razi Vol 4, No 2 (2016): Jurnal Ilmiah Ar-Razi
Publisher : Universitas Muhammadiyah Pontianak

ABSTRACTLearning assessment includes three aspects of learners abilities which are the cognitive ablilities (knowledge), affective abilities(attitude), and psychomotoric abilities(skills). Cognitive abilities tend to be highlighted than affective and psychomotoric abilities. The psychomotoric abilities of student chemistry education department in Muhammadiyah Pontianak University, should be evaluated since the beginning. Therefore, it is necessary to conduct a research about of psychomotoric abilities of the third semester students of Chemistry Education Muhammadiyah Pontianak University. This study was conducted using descriptive qualitative approach on 16 students using validated observation shet and interview. The results showed that students average psychomotoric abilities was 73.24%. About 1 student has an excellent categories and 15 students with good categories. However, there some aspect of students psychomotoric abilities which were categorized as poor and very poor.Keywords: analysis, psychomotor ability, students of chemical education

PEMANFAATAN KULIT PISANG KEPOK SEBAGAI ADSORBEN ZAT ORGANIK PADA AIR GAMBUT DENGAN VARIASI WAKTU PENGADUKAN Mahwar Qurbaniah
Jurnal Ilmiah Ar-Razi Vol 5, No 1 (2017): Jurnal Ilmiah Ar-Razi
Publisher : Universitas Muhammadiyah Pontianak

ABSTRACTThe functional groups that act as adsorbent in kepok banana peel (Musa acuminate L.) can be identified are -OH, -COO, and -NH. Products in the form of a biological charcoal adsorbent from kepok banana peel can increase the economic value of a banana peel. This research aimed to study of using the kepok banana peel sour as adsorbent for reducing the content of organic matter in peat water. Parameter observed was the shaking time. Kepok banana peel that has been obtained from industrial waste bananas fried in Pontianak burned to charcoal. Activated charcoal that has been obtained with a solution of 0.1 M NaOH,washed with 0.1% HCl and distilled water and then dried to constant weight. Furthermore, biological charcoal from kepok banana peels used as adsorbent to reduce the content of organic matter in peat water which measured to decrease the color intensity of peat water (absorbance measurement) by using UV-VIS spectrophotometer in the wavelength of 254 nm. The results showed that decreasing in organic matter content in 70 mL of water peat obtained in 1 gram of adsorbent was 60 minutes. This results showed that the adsorbent of kepok banana peel can reduce water content of organic matter in peat water.Keywords: adsorbents, peat water, kepok banana peel (Musa acuminate L.)

PENGEMBANGAN PENUNTUN PRAKTIKUM KOLOID BERBASIS INKUIRI TERBIMBING PADA SISWA DI KELAS XI IPA SMA NEGERI 1 SUNGAI RAYA Tika Pratiwi; Dedeh Kurniasih; Rizmahardian Azhari Kurniawan
Jurnal Ilmiah Ar-Razi Vol 6, No 1 (2018): JURNAL ILMIAH AR-RAZI
Publisher : Universitas Muhammadiyah Pontianak

Colloid is chemistry material which can be teached by experiment method. However, teacher’s practical guide didn’t match with the students characteristics and laboratory equipment in SMA Negeri 1 Sungai Raya. Therefore, this research aimed to develope the colloid practical guide based on guide inquiry. This research method was used Borg and Gall’s development model. Sampling technique used in this research was purposive sampling technique. Samples are students at eleventh grade in IPA 1 and IPA 2 SMA Negeri 1 Sungai Raya. The data was collected by using questionnaires and posttest sheet. The results of the research showed that the colloid practical guide are valid, practice, and effective. Validity test consists of three aspects (content, media, and language) were obtained coefficient validity with the average 1.00 or can be categorized "very valid". The practicality test used questionnaires for teacher and students which obtained the average percentage is 91.6% or can be categorized "very practice". Meanwhile, the effectiveness test obtained the average of posttest is 94, with the completeness classical is 100% or can be categorized "very effective". Based on the results, the colloid practical guide based on guide inquiry can be used as learning materials for students at eleventh grade in the second semester of IPA SMA Negeri 1 Sungai Raya.Keywords: Based on Guide Inquiry, Colloid, Practical Guide, Research and Development

PENGARUH MODEL PEMBELAJARAN KOOPERATIF TIPE STAD TERHADAP DAYA INGAT DAN HASIL BELAJAR SISWA PADA MATERI HIDROLISIS GARAM KELAS XI IPA SMA KEMALA BHAYANGKARI 1 SUNGAI RAYA Sahara Sahara; Dedeh Kurniasih; Rizmahardian Azhari Kurniawan
Jurnal Ilmiah Ar-Razi Vol 5, No 1 (2017): Jurnal Ilmiah Ar-Razi
Publisher : Universitas Muhammadiyah Pontianak

ABSTRACT The process of learning chemistry which only focused on teacher as informant caused the students’ memory lower. This could make the students’ learning outcomes lower, thus, it was needed STAD type of Cooperative Learning Method which had the process of interaction between student and teacher, and could help the students comprehend the material. Therefore, it was necessary to make a research which had the purpose to know the difference between students’ learning outcomes and memory which used STAD type ofCooperative Learning Method and lectures teaching method as well as how large the effect of STAD type of Cooperative Learning Method on salt hydrolysis material was. This research was Quasi Experimental Nonequivalent Control Group Design. The sample of the research was choosen by using saturated sampling which XI IPA 1 as experimental class and XI IPA 2 as control class. The techniques of data collection used measurement technique, observation, and interview while the tools of data collection used tests such as essayquestion, observation sheet, and interview guide. The statistical analysis of posttest result using U-man whitney test obtained significant value 0.000. This value was smaller than α (0.005) which meant that there was difference in learning outcome between experimental and control class. The statistical analysis result of U-man whitney delayed test obtained significant value 0.006, this value was smaller than α (0.005) which meant that there was difference between students’ memory in experimental and control class. The calculation of effect size showed value 1.64 with high criteria which gave high effect on students’ learning outcomes which was 44.95%, while the calculation of students’ memory effect size showed value 0.69 with moderate criteria which gave effect on students’ memory which was 26,42%. Keywords : Memory, Learning Outcomes, Salt Hydrolysis, STAD type of Cooperative Learning Method

HUBUNGAN ANTARA AKTIVITAS BELAJAR SISWA DAN HASIL BELAJAR PADA MATA PELAJARAN KIMIA KELAS X SMA NEGERI 5 PONTIANAK Nuraini Nuraini; Fitriani Fitriani; Raudhatul Fadhilah
Jurnal Ilmiah Ar-Razi Vol 6, No 1 (2018): JURNAL ILMIAH AR-RAZI
Publisher : Universitas Muhammadiyah Pontianak

Learning activity was a student’s activeness in learning process to achieve outcome and aim of learning which had been determined. This research aimed to describe the degree of student’s learning activity, its outcome and the correlation between them. Collecting data used purposive sampling technique which used 36 students of class XB as a sample. The data of student’s learning activity was analyzed by using observation checklist. The observation result showed that the mean of student’s learning activity was 51,76 % with the category of active enough. The result of second term examination 2016/2017 showed that the mean of student’s score was 40,42 as less good category. The correlation between students’ learning activity and its outcome was analyzed by the correlation of product moment formula. The result of analyzing data showed that there was positive correlation between students’ learning activity and outcome in chemistry X class at SMA Negeri 5 Pontianak with correlation coefficient 0,67 as high category. The contribution of students’ learning activity and outcome was obtained coefficient of determination (r2) equal to 0,451. Thus, it could be concluded that there was a influence and positive relationship with the strong category between student learning activities and learning outcomes in chemistry class X at SMA Negeri 5 Pontianak.Keywords : Students’ learning activity, Students’ learning outcome, Chemistry

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