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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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PENGARUH PENGGUNAAN MODEL PEMBELAJARAN KOOPERATIF TIPE STUDENT TEAMS ACHIEVEMENT DIVISION (STAD) TERHADAP HASIL BELAJAR PADA MATERI STRUKTUR ATOM SISWA KELAS X SMA NEGERI 10 PONTIANAK Israwati Hasibuan; Cawang Cawang; Dedeh Kurniasih
Jurnal Ilmiah Ar-Razi Vol 7, No 2 (2019): JURNAL ILMIAH AR-RAZI
Publisher : Universitas Muhammadiyah Pontianak

This study was conducted to determine the differences in student learning outcomes based on the low student learning outcomes which are below the KKM value ≥ 70 and aimed at knowing the magnitude of the influence of the use of cooperative models Student Teams Achievement Division (STAD) with those taught using conventional models of class X class 10 Pontianak SMA on the material of the atomic structure sub protons, neutrons, electrons and isotopes, isobar, isoton. The form of the research used was quasi-experimental research with a pretest-posttest design control group research design. The sample in this study was class XA students as the control class and XB as the experimental class. The data collection technique used was a measurement technique. Data collection tools used were interviews and test results of student learning in the form of essays. The results of statistical tests using the Mann Whitney U-test with α = 5% obtained a probability of <0.05, which meanth that Ho was rejected. These results indicated that there were significant differences between the learning outcomes of class X students of Pontianak State Senior High School on the material of atomic structure sub proton, neutron, electron and isotope, isobar, isoton. The magnitude of the influence of the use of the cooperative model Student Teams Achievement Division (STAD) on the atomic structure material of protons, neutrons, electrons and isotopes, isobars, isotons on student learning outcomes calculated by Effect Size was 0.431 which is categorized as medium. This showed that the use of the cooperative model Student Teams Achievement Division (STAD) type had a categorical influence on the learning outcomes of class X students of SMA Negeri 10 Pontianak on the material of atomic structure sub proton, neutron, electron and isotope, isobar, isoton.

ANALISIS KESULITAN BELAJAR BERDASARKAN GAYA BELAJAR SISWA KELAS X IPA PADA MATA PELAJARAN KIMIA DI MAS AL-MUSTAQIM ARANG LIMBUNG Ningsih Fatmawati; Rizmahardian Ashari Kurniawan; Tuti Kurniati
Jurnal Ilmiah Ar-Razi Vol 7, No 1 (2019): JURNAL ILMIAH AR-RAZI
Publisher : Universitas Muhammadiyah Pontianak

Learning difficulty is a condition where the students are not able to compherend what they learn so it causes the low exhaustiviness of students learning outcomes. This is caused by various factors, one of them is internal factor, namely learning style which has not been noticed by teacher, because it can help the learning process become faster and easier. This researcher was descriptive research which generally aimed to: (1) determine students learning style based on VARK learning styles, (2) find out students learning difficulty in chemistry subject, and (3) find out students learning difficulty in each type of learning style. The instruments of this research were questionnaire, observation, interview, and documentation. Based on the data analysis, the researcher got the information that the tendency of students learning style were dominated by V-A-R-K learning style (42,87%). There were 75% of students who experienced learning difficulty on the material of chemical calculation (stoichiometry) especially for the indicators in determining calculation based on the basic of chemical laws and morality based on the mole concept. It was due to the teacher tended to use lecture method. Morever, learning difficulty was also because the students have not known learning style they have, so that the students could not focus on learning style but they were more focused on finishing calculation tasks.

PENGEMBANGAN LEMBAR KERJA PESERTA DIDIK (LKPD) BERBASIS THINK TALK WRITE (TTW) PADA MATERI HIDROKARBON UNTUK KELAS XI IPA MA AL-MUSTAQIM Azimah Amalia; Fitriani Fitriani; Raudhatul Fadhilah
Jurnal Ilmiah Ar-Razi Vol 7, No 2 (2019): JURNAL ILMIAH AR-RAZI
Publisher : Universitas Muhammadiyah Pontianak

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29406/ar-r.v7i2.1721

The development research is initiated by the lack of students’ knowledge in determining the understand the concept of hydrocarbons, and aimed at designing the student worksheet based on Think Talk Write (TTW). Using Research and Development model of 3D (Define, Design, and Develop), this study included validation sheet, teacher and students questionnaires, and pretest posttest as the instruments. The study revealed a number of findings. First, the average score of validation criteria was 94,60% (strongly valid), with an average score of media expert by 93,75% (strongly valid). Second, the results of practicality criteria taken from the students respon were 93,8% (strongly practical), and from the teacher respon was 82,8% (strongly practical). Third, the effectiveness criteria of pretest and posttest after taught using student worksheet based on TTW and counted by N-gain was considered very good (0,75). In conclusion, the student worksheet based on TTW is effectively used as teaching materials in hydrocarbon in class XI Science MA Al-Mustaqim.

EFEKTIVITAS MODEL PEMBELAJARAN INKUIRI TERBIMBING PADA SUB MATERI REAKSI PENGENDAPAN DI KELAS XI IPA SMA MUHAMMADIYAH 1 PONTIANAK Gustiah Gustiah; Dedeh Kurniasih; Fitriani Fitriani
Jurnal Ilmiah Ar-Razi Vol 6, No 1 (2018): JURNAL ILMIAH AR-RAZI
Publisher : Universitas Muhammadiyah Pontianak

Student learning outcomes were influenced by learning model which applied by teacher. One of the learning model required active student involvement in the learning process was the guided inquiry approach. The guided inquiry learning model emphasized on the discovery and mastery of the concept through the experimental process. This research aimed to identify between the differences of student’s learning outcomes by using guided inquiry learning model and using direct learning model on the sub-material of deposition reaction and the influence of guided inquiry learning model on students’ learning outcomes. This research used quasi experimental design and this purposive sampling technique to determine the sample. The sample of research was the students of grade XI IPA SMA Muhammadiyah 1 Pontianak. Data collection used a test and observation method. Data analysis used SPSS 17.0 for Windows. Based on the result, there were differences between learning outcomes using guided inquiry learning model and direct learning model. This research used Effect Size (ES) with ES = 2,44 as high category with 49,27%, mean guided inquiry learning model gave high effectiveness to students’ learning outcomes. Based on the research results, the guided inquiry learning model was effectively applied in SMA Muhammadiyah 1 Pontianak.Keywords: Learning outcomes, Guided inquiry, Deposition reaction

PENINGKATAN KETERAMPILAN MENGADAKAN VARIASI PADA MAHASISWA PROGRAM STUDI PENDIDIKAN KIMIA Tuti Kurniati; Ucu Liani
Jurnal Ilmiah Ar-Razi Vol 7, No 1 (2019): JURNAL ILMIAH AR-RAZI
Publisher : Universitas Muhammadiyah Pontianak

The purpose of this research was to improve variation skills of student at chemical education. Meanwhile, the method of this research was classroom action research which conducted in the two cycles. The research design was begun by planning, action, observation, reflection and continued by the next planning. Data collection by observation, interview, documentation and test variation skill of student showed that the increasing of the first cycle was 67,12% and the second cycle was 73,87%.

PENGARUH PENGGUNAAN MODUL TERHADAP KEMAMPUAN MULTIPEL REPRESENTASI SISWA PADA MATERI KELARUTAN DAN HASIL KALI KELARUTAN (Ksp) KELAS XI IPA SMA ADISUCIPTO SUNGAI RAYA Ozi Auliza; Rizmahardian Ashari Kurniawan; Tuti Kurniati
Jurnal Ilmiah Ar-Razi Vol 7, No 1 (2019): JURNAL ILMIAH AR-RAZI
Publisher : Universitas Muhammadiyah Pontianak

This study aimed to determine the ability and influence of student multiple representation module before and after using the module about solubility and solubility results in class XI IPA Adisucipto Sungai Raya High School. The research method used in this study was the Pre-experimental design method and the research design used was one-group pretest-posttest design. The sample in this study was the students of class XI IPA of Adisucipto Sungai Raya High School. Data collection techniques used in this research were measurement, observation and interview techniques. Meanwhile, data collection tools used multiple choice test questions, observation sheets and interview guidelines. Based on the results of data analysis, differences in the ability of student multiple representation were obtained the results of calculations with an average value of the representation aspect of macroscopic 75.00, microscopic 73.33, and symbolic 74.44. The effect of learning with multiple representation module was analyzed using the N-Gain formula. The results in the macroscopic aspect of 0.54, microscopic aspect of 0.68 and the symbolic aspect of 0.38 belong to the medium category.

PENGEMBANGAN PENUNTUN PRAKTIKUM INDIKATOR ASAM BASA BERBASIS KONTEN LOKAL KALIMANTAN BARAT Ria Tri Wulandari; Dini Hadiarti; Dedeh Kurniasih; Rizmahardian Ashari Kurniawan
Jurnal Ilmiah Ar-Razi Vol 7, No 1 (2019): JURNAL ILMIAH AR-RAZI
Publisher : Universitas Muhammadiyah Pontianak

Acid-base is taught at SMA Negeri 1 Nanga Pinoh by using practical methods. Therefore, in order to deliver the material effectively and ideally, the proper guidebook is absolutely required. This study aimed to develop a valid, practical, and effective practical guide for acid-base material based on the local content of West Kalimantan. Using an R & D model of Borg and Gall, seven out of eleven stages of material design were employed. They were research and data collection, planning, draft development, initial product trial, initial product revision, main field trial, and revision of operational products.The data collection technique used were observation, questionnaire, and measurement. The instruments were observation and questionnaire sheet, and posttest questions. The study was obtained: (1) the coefficient of validity from the assessment of media, material and language experts were 1.00; (2) the response value on the initial field trial was 88.8%, and the response value on the main field trial was 89.16%; and (3)The student learning outcomes after taught using this practical guide were sharply improved by 97%. In conclusion, the practical guide for acid-base material based on the local content of West Kalimantan is effective to be used by the students of SMA Negeri I Nanga Pinoh.

PENGEMBANGAN MEDIA PEMBELAJARAN PUZZLE IKATAN KOVALEN (PETALEN) KELAS X DI SMA NEGERI 2 SUNGAI RAYA Nova Miola Anggreini; Fitriani Fitriani; Dedeh Kurniasih
Jurnal Ilmiah Ar-Razi Vol 7, No 2 (2019): JURNAL ILMIAH AR-RAZI
Publisher : Universitas Muhammadiyah Pontianak

The students problem in understanding the covalent bonds was caused by the ineffective learning instructional media which is used by the teacher didn’t fit the student’s characteristic. Therefore, it is important to develop instructional media of Petalen for covalent bonds class. The validation of the media is validated in three aspects. They were validity from the results of the game, practicality from the results of the questionnaire, and the effectiveness from the results of the pre and post tests. This study used a Research and Development (R & D) model of Borg and Gall conducted in seven stages. The study showed that instructional media of Petalen was suitable for teaching learning process. It can be seen from the results of the material and media aspects by 1,00 and 1,00 which were valid. The results of the practicality of the questionnaires on the small and main tryouts were 94,55% and 92,81% and were considered practical. The results of the effectiveness of the N-Gain on the small and main tryouts were 0,77 and 0,66 (high category). Therefore, instructional media of Petalen was valid and effective. It is suitable to be used as the learning instructional media in Chemistry class.

PENGEMBANGAN LEMBAR KERJA PESERTA DIDIK (LKPD) BERBASIS MULTIPLE REPRESENTASI PADA MATERI HUKUM DASAR KIMIA KELAS X IPA SMA NEGERI 1 SUNGAI RAYA Abdullah Yamani Noor; Fitriani Fitriani; Dedeh Kurniasih
Jurnal Ilmiah Ar-Razi Vol 7, No 1 (2019): JURNAL ILMIAH AR-RAZI
Publisher : Universitas Muhammadiyah Pontianak

This study was motivated by the learning sources used by students in Basic Laws of Chemistry that combines Concepts and Chemical Calculations completed by using Multiple Representations aspect. This study aimed to develop a valid, practical, and effective of student’s worksheet based on Multiple Representation for Basic Laws of Chemistry Class at the tenth Grade Natural Sciences of SMA Negeri 1 Sungai Raya. Using a Research and Development (R & D) of Borg and Gall model and One-shot case study design, the sample was selected by employing purposive sampling. The study indicated that student’s worksheet based on Multiple Representation was valid by 97,36% for material experts and 89,59% for media experts. Student’s worksheet was considered practical and received a positive response with an average practicality value of 95,58% for teacher responses and 88,64% for students responses. Additionally, student’s worksheet was effective, as the students successfully and classically completed the material by 79,68%. Therefore, student’s worksheet based on Multiple Representation is suitable as an alternative learning sources for the tenth grade Natural Sciences students.

EFEKTIVITAS MODEL COLLABORATIVE TEAMWORK LEARNING BERBASIS PRAKTIKUM PADA SUB MATERI REAKSI PENGENDAPAN TERHADAP SIKAP ILMIAH DAN HASIL BELAJAR SISWA KELAS XI IPA SMA NEGERI 2 SUNGAI RAYA Rindha Permata Dewi; Tuti Kurniati; Fitriani Fitriani
Jurnal Ilmiah Ar-Razi Vol 7, No 1 (2019): JURNAL ILMIAH AR-RAZI
Publisher : Universitas Muhammadiyah Pontianak

This study aimed at investigating the effectiveness and the difference of student’s scientific attitude and learning achievement in practicum based collaborative team work learning using expository model in Precipitation Reactions class at the ninth grade Natural Sciences Class of SMA Negeri 2 Sungai Raya. Using a quasi-experimental design, two classes of Natural Sciences participated in this study. In this case, the IPA 1 class was treated as the control group, and the IPA 2 class was treated as the experiment group. The data collection tool of the student’s scientific attitude was an observation sheet, and the tool of the student’s achievement was an essay test. The results of the U-Mann Whitney of SPSS 17,0 showed the difference on the student’s scientific attitude in curiosity, respect on data or facts, critical thinking, open-minded and cooperative attitude, perseverance, and sensitivity (P value (0,000) < α (0,05)). The results also indicated the difference on the student’s learning achievement in control group treated by using practicum-based collaborative team work model, and in control group treated by using practicum-based expository model. The effect size measurement revealed 1.08 (scientific attitude) and 0.96 (learning achievement) and were considered high.

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