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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.

Arjuna Subject : -

Articles 352 Documents

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ANALISIS RISIKO KARAKTERISTIK, SOSIAL EKONOMI, PERILAKU DAN FAKTOR LINGKUNGAN TERHADAP MALARIA (Studi Kasus di Kecamatan Arongan Lambalek Kabupaten Aceh Barat) Susy Sriwahyuni Sukiswo; Rinidar Rinidar; Sugito Sugito
Jurnal Pendidikan Kimia (JPKim) Vol 7, No 1 (2015): April
Publisher : Pascasarjana Universitas Negeri Medan

AbstractMalaria is an infectious disease remains that has become a global concern. Arongan Lambalek sub district was an endemic area of malaria in West Aceh regency. It was in Medium Incidence Area category with Annual Parasite Incidence (API) value of 3,67 per 1000 population. This case was still above the target of National API elimination phase that was less than 1 per 1000 population in 2013. The study was conducted in Drien Rampak Community Health Center Work Area in Arongan Lambalek of Aceh Barat Regency with the purpose to know the relationship of characteristic, socioeconomic, behavioral and environmental factors and determine the most dominant variable that influence the malaria incidence in Arongan Lambalek sub district of Aceh Barat District. This study was an analytical observational study with case-control approach. Samples were taken by using purposive sampling method with a total sample of 66 respondents, consisting of 33 cases and 33 controls that met the inclusion and exclusion criteria, in this term, case group comprised of people who tested positive for malaria while control group comprised of people who tested negative for malaria based on laboratory tests/RDT (rapid diagnostic test). The results of the bivariate analysis using Chi Square test it was found that there were five variables associated with the incidence of malaria in Arongan Lambalek sub district of Aceh Barat Regency, such occupation (p = 0,000; OR= 0,048), knowledge (p= 0,000; OR= 17,50), attitude (p= 0,001; OR= 7,429), precaution (p= 0,000; OR= 9,80) and the environment (p= 0,000; OR= 9,0). Based on the multivariate logistic regression analysis, the most dominant variable on the incidence of malaria was knowledge about the malaria (p= 0,006; OR= 12,78; 95% CI = 2,045-79,893). It is recommended that further analysis on behavioral factors should be carry out, especially in knowledge in relation to the incidence of malaria in Aceh Barat District.Keywords : Malaria, Socio economic, behavioral, Environment

The Role of Organization Collage Student a Study Program to Build Leadership Character Candidate Chemistry Teacher Leony Sanga Lamsari Purba; Elisa Natalia Sibarani
Jurnal Pendidikan Kimia (JPKim) Vol 9, No 1 (2017): April
Publisher : Pascasarjana Universitas Negeri Medan

Abstract: The development of social media into today's style of life. The decline in the child's desire to follow communities a result of the use of social media affect the formation of character in children. Character education is a very good effort from all of people who develop education. Science briefing will children with good character is the responsibility of all of people involved in education for the future of dignity. Teachers is an asset in the world of education should have good prospects in education which is not a crisis of character. Organization is a place for prospective teachers to build character. This study aims to describe the role of student organization of study program in developing the leadership character of prospective educators of Chemistry Christian University of Indonesia. The focus in this research is the role of organization of student set of study program in shaping the leadership character of prospective educator. In this research, qualitative approach and case study research design is used to collect data by technique (1) in-depth interview, (2) nonparticipant observation, (3) documentation study. Data analysis techniques use data reduction, data presentation, verification or conclusion. The result of this research is the role of organization of student set of study program in shaping the leadership character of prospective educator by giving courage, integrity, good sense of humor and maturity which is 96.5%, 93,75%, 93,75% and 91, 25% on prospective educators. So, the students are expected to join the organization of student group of study program is effort done in shaping the leadership character of prospective educator of Chemistry Christian University of Indonesia.Keywords: character, chemistry, educators

Pengaruh Penggunaan Multimedia Berbasis Komputer Terhadap Hasil Belajar Kimia Pada Materi Minyak Bumi di Kelas X SMA N 1 Indralaya Silvia Septhiani; Jejem Mujamil S A; Rachman Ibrahim
Jurnal Pendidikan Kimia (JPKim) Vol 7, No 3 (2015): Desember
Publisher : Pascasarjana Universitas Negeri Medan

Abstract. The impact of using computer based multimedia to student’s chemistry achievement of crude oil topic at X class SMA N 1 Indralaya. The aims of this research to determine how different achievement between study by using computer and without using it in crude oil topic. The programme used macromedia flash 8. The method used quasi experiment. Data collection technique by test value. Test result prove experiment class in achievement. Experiment got average value 78,99 and 69,01 to control. Experiment class have passed standard value more than 85% and only 64,4% for control class. T-test significance level 5% t.count > t.table was 2,83 > 2,00. The result showed, there was significant differences between experiment class and control class. Keyword: multimedia based computer, student achievement

Triterpenoid compound from metanol extract of mangrove leaves (Sonneratia alba) and anti-cholesterol activity test Weny J.A Musa; Nurhayati Bialangi; Boima Situmeang; Saronom Silaban
Jurnal Pendidikan Kimia (JPKim) Vol 11, No 1 (2019): April
Publisher : Pascasarjana Universitas Negeri Medan

Mangrove plant (Sonneratia alba) is easily found in West and North Indonesia. Mangrove plant has the potential of being a herb medicine. Mangrove plant variously used in ethnomedicine to treat various deseases like wounds, diarrhea, and fever. In previously sutudy, leaf extract of mangrove plants reported have anti-cholesterol activity. This plant is widely used to treat various deseases like wounds, diarrhea, and fever. The purpose of this study was to isolate triterpenoid compound from the ethyl acetate fraction of mangrove leaves and anticholesterol activity test. Extraction was done by maceration method using methanol 96% as solvent. Isolation was carried out by column chromatography using a combination of n-hexane, ethyl acetate, and methanol solvents. The elucidation of the structure was determined by analysis of IR, 1H-NMR, 13C-NMR, 2D-NMR, and MS spectroscopies as well as by comparisons with the literature. Anticholesterol activity test was carried out in vitro. The results showed that triterpenoid compounds (lupeol) were able to reduce cholesterol from concentrations of 5, 10, 20, 40, 60, and 80 ppm are 13.7; 29.4; 49.0; 60,1; 70.2; and 77.0% respectively. Therefore, isolates compound (lupeol) have anti-cholesterol activity.Keywords:Anti-cholesterol; mangrove; triterpenes

Learning Research Methods of Based Problem Solving Reviewed from Cognitive and Critical Thinking Ability Julia Maulina; Susilo Sudarman
Jurnal Pendidikan Kimia (JPKim) Vol 8, No 1 (2016): April
Publisher : Pascasarjana Universitas Negeri Medan

Abstract. This study shows the effect of the method of problem solving on cognitive abilities and critical thinking skills in making proposals of educational research articles. This study used an experimental method, which was implemented in January 2015 until July 2015. The sample consisted of one class of a study that students of Chemical Education FKIP UISU TA. 2014/2015. The results were obtained using two test method is to test the cognitive domain that is a multiple choice test and critical thinking skills in the form of making a research proposal. From the results of the analysis, there is the influence of problem solving methods to the learning outcomes of students' critical thinking and student learning outcomes multiple-choice test on the results of student learning materials Research Methods. No influence student results test multiple-choice to the learning outcomes of students' critical thinking on the results of student learning course material research method there is no interaction between the two methode tests with the use of methods of problem solving, but no effect of the use of methods of problem solving on critical thinking ability of students in results students learn the material Research Methods. Keywords: methods of problem solving, critical thinking, cognitive ability, research methods

Phytochemical screening of bunga rosella (Hibiscus sabdariffa L) and antimicrobial activity test Hermawan Purba; Helen Anjelina Simanjuntak; Risanti Situmorang
Jurnal Pendidikan Kimia (JPKim) Vol 12, No 2 (2020): August
Publisher : Pascasarjana Universitas Negeri Medan

The purpose of this study was to determine the antimicrobial activity of rosella infusa (Hibiscus sabdariffa L.). Antimicrobial inhibition test using infusa of rosella (Hibiscus sabdariffa L.) against Staphylococcus aureus and Escherichia coli bacteria at a concentration of infusa 100%; 75%; and 50%. The concentration has highest potential antibacterial of infusa for Staphylococcus aureus is 100% witch has diameter of 13.6 mm and for Escherichia coli bacteria is 100%, its show that diameter of zone inhibitory zone is 13.3 mm. The Results of phytochemical screening show that infusa of rosella (Hibiscus sabdariffa L.) contains flavonoids, saponins, and tannins. Based on the data above show that the infusa of rosella flower has high antibacterial potential. Keywords: Hibiscus sabdariffa L., antimicrobial activity, Staphylococcus aureus, Escherichia coli

UPAYA MENINGKATKAN KOMPENTESI CALON GURU (PRAKTIKAN) MELALUI SKENARIO PPL PEMBELAJARAN KIMIA DI SEKOLAH MITRA PPL Gulmah Sugiharti
Jurnal Pendidikan Kimia (JPKim) Vol 6, No 1 (2014): April
Publisher : Pascasarjana Universitas Negeri Medan

Abstract This article report from an action research, aims to Strengthening Classroom Management, question skills and reinforcement learning Competencies through PPL-scenes (site experience) on teaching chemistry. This research conduct in SMA Negeri 1 Tanjung Pura Langkat Province of North Sumatera by student training school (which take) PPL activities . The action research data collect by applying the technique of observation and interpretation simultaneously. The focus of this study is the observation in classroom management competence, questioning skills, giving reinforcement by student PPL Chemistry, in the learning process cycle unit Chemistry. The format of observations taken from 2012 UPPL Referring as an instrument and descriptive method used to data analysis. The research data shows (1). To understand and recognize the mistake in learning activities Chemistry student behavior during the learning process, the student has increased sensitivity, especially at the end of the first cycle. (2). There are efforts through trial and error on the situation facing the class, after the experimentalist began to recognize the use of techniques of classroom management, the provision of reinforcement and questioning skills. (3). Student have been able to use classroom management, giving reinforcement and questioning skills in a more professional and situational aspects into account at the end of the third cycle. (4). Action research cycles have been successfully established practitioner competence in the use of classroom management, asking and giving reinforcement to the situation facing the class. Based on the analysis above action research proved very suitable to form an calu student competence as a Chemistry teacher. Keywords : action research; teacher competencies; teaching chemistry; school partner PPL

PENGARUH MODEL PEMBELAJARAN KOOPERATIF TIPE THINK PAIR SHARE (TPS ) DIKOMBINASIKAN DENGAN METODE EKPERIMEN TERHADAP KEMAMPUAN BERPIKIR KRITIS DAN HASIL BELAJAR KIMIA MAHASISWA DI PAPUA Tiurlina Siregar; Christiana Niken Larasati
Jurnal Pendidikan Kimia (JPKim) Vol 6, No 2 (2014): Agustus
Publisher : Pascasarjana Universitas Negeri Medan

Abstract. Learning activities and critical thinking skills students of Biology at the University Ottow Geissler organic chemistry courses remains low. Lack of critical thinking skills is demonstrated by the low student learning outcomes of students. To enhance critical thinking skills and learn to apply the learning outcome types Cooperative Think Pair Share ( TPS ). The population was students of Biology, University of Papua years teaching Ottow Geissler 2012/2013 consists of 10 students. This study aims to determine the relationship of cooperative learning model Think Pair Share ( TPS ) through the experimental method to the results of students of the University Ottow berajar Geissler ( Sub Topic Hydrocarbon Compounds ). Relationship learning model is designed based on the results of preliminary studies, further validated by experts then tested the students of Biology, University of Ottow Geissler using purposive sampling. Is a quantitative research instrument. Quality of the instrument based on the validity and reliability of the instrument in the form of questionnaires and tests. The conclusion from this study is that there is a fairly strong relationship cooperative learning model Think Pair Share ( TPS ) Method Through Experiment Against the critical thinking skills of 0.5730 and has dealt cooperative learning model Think Pair Share ( TPS ) with the learning outcome of -0.719. Keywords: Cooperative Learning Model, Type Think Pair Share (TPS) Critical Thinking, Learning Outcomes, Hydrocarbons

Impregnasi dengan Asap Cair Terhadap Kualitas Ribbed Smoked Sheet di PT. Perkebunan Nusantara III Dolok Merawan Dede Ibrahim Muthawali
Jurnal Pendidikan Kimia (JPKim) Vol 8, No 1 (2016): April
Publisher : Pascasarjana Universitas Negeri Medan

Abstract. Of the experiments that have been done, adding liquid smoke in a sheet used 4,7 ml, 4,95 ml, and 5,2 ml in which the sheet resulting brownish yellow with category RSS I and RSS II. Sheet produced on RSS Classification of I that with the addition of 4,95 ml of liquid smoke on the concentration of 10%, the concentration of the most ideal where there is no presence of popcorn or bubble on the sheet. Whereas at a concentration of 5% by volume of liquid smoke with 5,2 ml have results at a temperature of 50-600C are RSS I will but at temperatures above 600C changes on sheet to RSS II it is because the temperature is too hot so that the sheet obtained broken with the bubbles. Keyword: liquid smoke, sheet, brownish yellow, bubbl

The difference of student’s activities and learning outcome with problem based learning using macromedia flash and handout Desi Natalia Purba; Marini Damanik; Saronom Silaban; Lisnawaty Simatupang
Jurnal Pendidikan Kimia (JPKim) Vol 10, No 3 (2018): December
Publisher : Pascasarjana Universitas Negeri Medan

This study aimed to determine the difference of student’s activities and learning outcome with PBL using macromedia flash and handout. The sample were selected using purposive sampling into experimental group I and experimental group II with 60 students. The experimental group I used the PBL using macromedia flash, while the experimental group II used the PBL using handout. The results indicated that the mean scores of student’s activities and learning outcome in the experimental group II were significantly higher than those in the experimental group I. Thus, there was a difference in student’s activities and learning outcome. The correlation test between student’s activities and learning outcome presented that the experimental group I rcount>rtable (0.625>0.361) and the experimental group II rcount>rtable (0.683>0.361), it concluded that there was a positive correlation between student’s activities and learning outcome with PBL using macromedia flash and handout.Keywords:activities; difference; handout; macromedia flash; learning outcome; PBL

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