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Jurnal Pendidikan Kimia (JPKim)

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Published by Universitas Negeri Medan

ISSN : 20853653 EISSN : 25493116 DOI : 10.24114

Core Subject : Science, Education, Social,

Biochemistry, Genetics & Molecular Biology Chemistry Education Environmental Science

Jurnal Pendidikan Kimia (JPKim) yang dikelola Program Pascasarjana Universitas Negeri Medan terbit 3 kali setahun, yakni bulan April, Agustus dan Desember. JPKim menerbitkan artikel ilmiah hasil-hasil penelitian pendidikan kimia dan kimia fundamental. JPKim juga menerbitkan artikel Review terkait Pendidikan Kimia dan Kimia.

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Articles 352 Documents

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The Improvement On Reading Literacy (Competence) Students Of Chemistry Department-FKIP-Universitas Riau Through Students Worksheet Of English For Chemistry -Based Active Learning Asmadi Muhamamad Noer
Jurnal Pendidikan Kimia (JPKim) Vol 8, No 2 (2016): Agustus
Publisher : Pascasarjana Universitas Negeri Medan

Abstrak-English for Chemistry (called Bahasa Inggris Kimia, BIK in Indonesia) is a mandatory course which is supported students professional of student support department of chemistry or chemistry teacher candidates in order to increasing mastery the contents (chemistry). Development Method of teaching materials course (also called Students worksheet, called LKM: Lembar Kegiatan Mahasiswa) followed the design of Plomp. Plomp design consists of three stages such as: a preliminary study (analysis of the needs and characteristics of learners), Products (prototype) and Evaluation (validation of the product). After prototype instructional materials formed, it pay attention to analysis of matching the needs and characteristics of students, then the product validation both self-evaluation and validation by experts have been conducted. Validated is by Contents specialist (chemical education experts) and expert in English. All inputs and suggestions suitable is accommodated in order to produce a product appropriately used by learners. The results of product testing of LKM on a freshman-2014/2015 shows the students are motivated to learn by way of active learning. Keyword: chemistry English language (English for chemistry), student worksheet of active learning

Analysis of constraints and innovation of chemistry experiment implementation in high school in Deli Serdang, Indonesia Fathia Namira; Wan Azura; Ayu Miranda; Hamidatun Nisa; Saronom Silaban; Retno Dwi Suyanti; Ayi Darmana
Jurnal Pendidikan Kimia (JPKim) Vol 12, No 3 (2020): December
Publisher : Pascasarjana Universitas Negeri Medan

Practical activities play an important role in science education. Through it, students develop a deeper understanding of standing theoretical concepts, skill, utilization of technology, and methods for investigation with direct manipulation of related materials. Effective use of laboratories is one of the requirements in learning chemistry, especially in experiment material. However, problems that are often encountered in learning in the laboratory are laboratory management which includes the procurement process, application process, and the maintenance process. The research method used was observation, document recording and interview with all chemistry teachers and students at Labuhan Deli Senior High School and Percut Sei Tuan Senior High School, District of Deli Serdang, Indonesia. Stages in the research of this are (1) observation based on National Education Standards, (2) observation of chemistry experiments implementation, (3) observation of constraint and problems laboratory at school, and (4) determine alternative solution. The result showed that area of chemistry laboratory has suitable with BSNP standart, but the standard of facilities and infrastructure category reference scale (PAP), showed less category results. So the settlement by researchers on this problem is to do a simple practicum that can be done in an open space or using the technology (virtual laboratory) to increase the students’ skill in industrial 4.0.Keywords: Chemistry experiment, Laboratory, Facilities, Simple practicum, Technology

PENGEMBANGAN BAHAN AJAR INOVATIF RUMUS KIMIA DAN PERSAMAAN REAKSI BERBASIS MODEL PEMBELAJARAN PROBLEM BASE LEARNING (PBL) Ramlan Silaban; Saronom Silaban; Freddy T.M. Panggabean; Elsa Ginting
Jurnal Pendidikan Kimia (JPKim) Vol 7, No 1 (2015): April
Publisher : Pascasarjana Universitas Negeri Medan

Abstract The research aims to get an innovative chemistry teaching module on chemical formula and chemical equilibrium for X grade SMA to improve student learning outcomes. This research conduct in some senior high school (SMA) in North Sumatera whose devide in two class, those experiment and control class. This R&D type modifies from Borg&Gall theory, and some textbook contain this subject has been analyzing using BSNP criteria. The composed innovative teaching module trial on classroom by quasy-experiment methods. The experiment class taught using innovative teaching module and control class using textbook. The results showed that (1) Some chemistry textbook contain this subject which produced by some publisher has good quality but there are some sequences material and teaching strategy will be addition to completely them. (2) We have get a composing innovative teaching module on chemical formula and chemical equilibrium for X grade SMA on chemical formula and chemical equilibrium with combine PBL teaching model. This module have been standardization and fully criteria of BSNP. (3) There is a significant increasing of chemistry student learning outcomes using this innovative module on teaching classroom Keywords : development innovative teaching module; PBL model; learning outcomes

The Effect of Inquiry Learning Method by Using Laboratory and Logical Thinking on Learning Outcome in Chemical Reaction Rate Gulmah Sugiharti; Siti Kholilah Hasibuan
Jurnal Pendidikan Kimia (JPKim) Vol 9, No 1 (2017): April
Publisher : Pascasarjana Universitas Negeri Medan

Abstract: This research aims to discover the effect of learning models using laboratory and logical thinking ability to the students of chemistry learning outcomes on the material rate of the reaction. The research was conducted on the students of class XI IPA MAN 2 Model Medan T. A. 2016/2017. The population in this research is all students of class XI IPA MAN 2 Model Medan which consists of 8 classes. The sample is determined by purposive sampling that takes 2 classes that made the experimental class. This type of research is experimental type with factorial design 2 x 2. Data retrieval for student learning outcomes obtained by test of learning result using valid instrument as much as 23 questions and reliable (0,875). Whereas, the data for students logical thinking ability is obtained through questionnaire of logical thinking ability by using valid instrument data. Data analysis techniques used two-way variance analysis. The result of research shows that there is influence of Inquiry learning model by using real laboratory and virtual laboratory on students' chemistry learning result on reaction rate material with Fcount> Ftable that is 28,6367> 3,99, there is influence of high logical thinking ability and low logical thinking ability to the result of student's chemistry learning on the material of reaction rate with Fcount> Ftable is 21,6251> 3,99, and there is interaction between learning model with logical thinking ability to student's chemistry learning on reaction rate material with Fcount> Ftable that is 20,7645 > 3.99. Keywords: learning outcomes, interaction, virtual laboratory, real laboratory, inquiry learning model

Pengembangan Model Pembelajaran dengan Mengintegrasikan Strategi Pembelajaran dan Media Pembelajaran pada Pokok Bahasan Struktur Atom Siti Nurlani Harahap
Jurnal Pendidikan Kimia (JPKim) Vol 8, No 1 (2016): April
Publisher : Pascasarjana Universitas Negeri Medan

Abstract. The aim of this research was to develop new learning models which integrating between learning strategies and learning medias to the atomic structure subject. The research was done in the first state secondary vocational school of Talawi. The research population consisted of four classes. All of the population were used as the research samples, so there were four experiment classes. They were first class of experiment was taught by using cooperative learning model was integrated with computer animation media; the second class of experiment was taught by using game learning model was integrated with computer animation media; the third class of experiment was taught by using game learning model was integrated with card media and the fourth class of experiment was taught by using game learning model was integrated with card media. The result of this research showed that learning strategies had influence to the student learning result significantly. The learning media had influence to the student learning result significantly. There were interaction between learning strategy with learning media. The most optimum of learning model to increase student learning result was game learning model was integrated with card media. Keywords: cooperative, game learning, animation media

Development of chemistry module integrated with islamic values in thermochemistry and reaction rate for senior high school student Anis Syafitri; Ayi Darmana
Jurnal Pendidikan Kimia (JPKim) Vol 10, No 3 (2018): December
Publisher : Pascasarjana Universitas Negeri Medan

The chemistry module which integrated with Islamic values has already developed in thermochemistry and reaction rate. This research presented the availability of Islamic values in student’s handbook. The proper of chemistry module design based on BSNP criteria, and the response to chemistry module which integrated with Islamic values to teacher and university student. This research used the method of research and development. It consists of 3 steps which were analysis, design, and development. The instruments are checklist, questionnair based on BSNP criteria, and response questionnair. The result shown the lack of Islamic value in student’s handbook, chemistry module design is proper to used. The teacher and university student’s response are good and need no revision.Keywords:Islamic values; module development; statistics education research; students’ handbook

The effectiveness of using flipbook maker to improve the chemistry learning outcomes of senior high school students Nova Irawati Simatupang; Elferida Sormin
Jurnal Pendidikan Kimia (JPKim) Vol 12, No 1 (2020): April
Publisher : Pascasarjana Universitas Negeri Medan

This research was conducted by applying a flipbook maker to improve student chemistry learning outcomes on the subject of hydrocarbons. The aims of this study was to determine the effectiveness of the use of flipbook maker to improving student chemistry learning outcomes. The use of this flipbook can increase students interest in learning chemistry which also affects the increase in students chemistry learning outcomes. The population in this research were all students of XI senior high school (SHS) Darussalam Tangerang. The sample of the study was students of XI MIA 1 consisting of 32 students. The sample was selected by the purposive sampling techniqe. The instrument used was multiple choice questions consisting of 20 items. Based on the pre requisite test, the data obtained were normally distributed with sig = 0.094 > 0.05 and homogeneous with sig = 0.014 > 0.05. Hypothesis testing is done using one sample t-test with significance level of 0.05 using the SPSS. From the research results obatined tcount (15.346) > ttable (1.670) and significant value of 0.000 < 0.05. Based on this, it can be concluded that use flipbook makers is effective to improving student chemistry learning outcomes. Keywords: Chemistry; flipbook-maker; hydrocarbon; learning outcomes

PENGARUH PEMBERIAN Virgin Coconut Oil VCO TERHADAP KADAR MALONDIALDEHID TIKUS PADA AKTIFITAS FISIK MAKSIMAL Fajar Apollo Sinaga
Jurnal Pendidikan Kimia (JPKim) Vol 6, No 1 (2014): April
Publisher : Pascasarjana Universitas Negeri Medan

Abstrak. Aktifitas fisik berat dapat mengakibatkan terjadi stress oksidatif diakibatkan produksi radikal bebas melebihi jumlah antioksidan di dalam tubuh. Malondialdehid (MDA) merupakan indikator umum yang digunakan untuk menentukan jumlah radikal bebas dan secara tidak langsung menilai kapasitas oksidan tubuh. Stres oksidatif dapat dicegah atau dikurangi dengan pemberian antioksidan. Salah satu sumber alami yang mengandung antioksidan adalah Virgin Coconut Oil (VCO). Tujuan penelitian ini adalah untuk mengetahui pengaruh pemberian VCO terhadap kadar malondialdehid pada tikus yang melakukan aktivitas fisik maksimal. Penelitian menggunakan pretest-postest control group design. Dua puluh empat tikus dibagi menjadi 4 kelompok. Kelompok kontrol (P0) diberikan 1,5 ml air suling, kelompok intervensi (P1), (P2) dan (P3) diberikan VCO dengan dosis berbeda (masing-masing 1 ml, 2 ml, dan 3 ml/hari). Semua kelompok dilatih untuk berenang selama 4 minggu dan kemudian dipaksa untuk berenang tanpa beban sampai kelelahan. Pengukuran MDA dilakukan sebelum pemberian VCO dan sesudah melakukan aktifitas fisik maksimal. Hasil analisis menunjukkan kadar MDA pada kelompok kontrol meningkat secara signifikan (P<0,05) dan pada kelompok perlakuan terjadi penurunan (P <0,05). Hasil penelitian menyimpulkan bahwa VCO dapat mencegah peningkatan produksi radikal bebas akibat aktifitas fisik maksimal. Kata Kunci: virgin coconut oil, radikal bebas, antioksidan, aktifitas fisik maksimal

Stability of Styrax benzoin extract and fraction with the addition of glycerol and tween 80 Dedi P Simatupang; Nora Susanti; Jamalum Purba
Jurnal Pendidikan Kimia (JPKim) Vol 13, No 2 (2021): August
Publisher : Pascasarjana Universitas Negeri Medan

This research to decide the consequences of expanding the steadiness of the concentrate and part of incense with the expansion of glycerol and tween 80 by contrasting the reference tests of frankincense separates available. The technique utilized in this examination depends on the expansion of glycerol and tween 80, just as directing boundaries of consistency, organoleptic, pH and investigation of substance content of concentrates and parts with GC-MS instruments. The outcomes got in this investigation demonstrate the actual properties of the concentrate and part of the incense sap as a thick fluid, earthy red and has an unmistakable fragrant smell. The consistency got from the thickness test was 277.68 Cp. In the meantime, the thickness estimation consequences of the reference test acquired a consistency worth of 326.54 cP. What's more, has a pH scope of 4.0-5.5. The fundamental synthetic parts of the extraction results and the isoprophyl part of styrax benzoin and the reference part of the reference styrax benzoin remove dependent on the consequences of the investigation discovered 6 mixtures that share practically speaking, in particular Benzoic corrosive, Vanillin, trans-Cinnamic corrosive, (Z) - Cinnamyl benzoate, 2-Propenoic corrosive , 3-phenyl-, phenylmethyl ester, (E) - and Cinnamyl cinnamate. Keywords: Styrax benzoin, Glycerol, Extract stability, Tween 80, Fractionation

EFEKTIVITAS METODE EKSPOSITORI DENGAN COOPERATIVE INTEGRATED READING AND COMPOSITION TERHADAP HASIL BELAJAR MAHASISWA SEMESTER SATU FKIP UHN TAHUN AJARAN 2013/2014 PADA POKOK BAHASAN STOIKIOMETRI Erna Helena M Tampubolon
Jurnal Pendidikan Kimia (JPKim) Vol 6, No 2 (2014): Agustus
Publisher : Pascasarjana Universitas Negeri Medan

Abstract This study aims to determine which method is more effective is used for the Ekspositori method with the method of Cooperative Integrated Reading and Composition on that matter of stoichiometry in prodi mathematics pedagogy UHN. The hypothesis of this research is the existence of significant differences between the learning outcomes of students who use the Ekspositori method with the method of Cooperative Integrated Reading and Compositon on stoichiometric materials in mathematics pedadogy UHN prodi. The Data were processed using the test of normality test with Liliefors. It turns out that the results obtained from the normal Gaussian with Ekspositori Group = 5% and dk = 7 then Lhit = 0,1097 = 0,300 Ltab < as well as data that uses the methods of Cooperative Integrated Reading and Composition are also Gaussian normal with = 5% and dk = 9 then Lhit = 0,1337 = 0,273 Ltab <. To find out if the data comes from the population that bervarians same or different, then used its homogeneity test, apparently retrieved Fhit (1,417) < F ¬ tab (1,668) and thus, the population was homogeneous. to find out whether there are differences in the learning results using the method Ekspositori and the method of Cooperative Integrated Reading and Composition used t test, if k = 88 apparently retrieved thit (3,051) > ttab (1,991). Data analysis results obtained from equivalent and Byway of baku Experimental group of learning outcomes = 11,91 and raw = 2,932 Byway, in the control group = raw Byway and 10.20 = 2,455.Key words: The method Ekspositori, method of Cooperative Integrated Reading and Composition, Learning Achievement, Stoichiometry

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