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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 325 Documents

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Improving chemical learning outcomes with explicit instruction learning models with quizizz evaluation media Bropson Minanlarat; Leony Sanga Lamsari Purba; St Fatimah Azzahra
Jurnal Pendidikan Kimia (JPKim) Vol 13, No 2 (2021): August
Publisher : Pascasarjana Universitas Negeri Medan

This study aims to determine the effect of explicit instruction learning models and the percentage of student learning outcomes improvement in chemistry. Explicit instruction learning model is the free variable while the dependent variable is learning outcomes. This research method is a quasi experiment with the research design nonequivalent control group design. The population of this study were students of Senior High School 42 Jakarta, the sample was selected by purposive sampling technique, consisting of two classes, namely class XI MIA 1 as the experimental class and XI MIA 2 as the control class. The results of the ttest show that the sig. (2-tailed) is smaller than the α value, namely sig 0.000 < sig 0.05, so learning using the explicit instruction model has a significant effect on improving chemistry learning outcomes on hydrocarbon compound material. In addition, the use of explicit instruction learning models can improve student learning outcomes by 19% when compared with the use of conventional learning models (TCL).Keywords: Explicit instruction, Quizizz, Chemistry learning, Learning outcomes

ANALISIS KADAR BESI (Fe) PADA BAYAM MERAH (Iresine herbstii hook) DAN BAYAM HIJAU ( Amaranthus tricolor sp ) YANG DIKONSUMSI MASYARAKAT Nelma Nelma
Jurnal Pendidikan Kimia (JPKim) Vol 6, No 3 (2014): Desember
Publisher : Pascasarjana Universitas Negeri Medan

Abstract Spinach (Spinacia oleracea) is the vegetable which has high nutrition content. It places spinach in King of vegetable’s range. Contains few calories but rich in vitamin A, vitamin C and iron mainly. Research comparison of the levels of iron in red and green spinach was done in chemical laboratory of polytechnic health Ministry of Health Indonesia Medan Analis Health department and Health Laboratory Medan on march-july 2013. This study aimed to know iron levels in red and green spinach. Study samples were 8 red spinach and 8 green spinach randomly chosen from Aksara market Medan. Iron levels were examined by atomic absorption spectrophotometer (λ =248,3 nm). Quantitative test result showed iron levels in green spinach (6,66 mg% - 8,18 mg%) was higher than red spinach (2,63 mg% - 4,34 mg%)Keywords: spinach, iron (Fe) level, atomic absorption spectrophotometer

Interactive multimedia based on autoplay media studio 8 for chemistry on rate of reaction topics for class Xi SMA/Ma Roza Linda; Herdini Herdini; Zera Rahmaputri
Jurnal Pendidikan Kimia (JPKim) Vol 9, No 3 (2017): Desember
Publisher : Pascasarjana Universitas Negeri Medan

A valid and practical learning Interactive Multimedia of Autoplay Media Studio 8 for Rate of Reaction topics has been developed. The research method was Research and Development with Plomp model which consist of 4 steps; Prelimenary Investigation, Design, Realization, and Validation, evaluation, revision. Media was validated by three validators and limited trial by practitioners (users). The results showed an average score of validation was 96.12%. Based on questionnaire responses of 3 teachers and 20 students each earned an average score of 96.25% and 94.5%, respectively. From the results of the average validation score and limited trial score of Autoplay media studio 8 Interactive Multimedia for Rate of Reaction topics was valid and can be used as a learning media.Key words: autoplay media studio 8, interactive multimedia, rate of reaction

Effect of School Based Management on Teacher Job-Satisfaction and Job-Performance Wesly Hutabarat
Jurnal Pendidikan Kimia (JPKim) Vol 7, No 2 (2015): Agustus
Publisher : Pascasarjana Universitas Negeri Medan

Abstract. Introduction of Weber’s organizational structure into Indonesian Educational system since the Dutch colonial resulted in a difficult time. The use of Weber ‘s organizational structure had made it difficult for teachers to make decisions concerning with schools facilities, curriculum, and student recruitment. The school principals usually had to wait for sometimes from their superintendents to make decisions concerning with school facilities, curriculum and student recruitments. Introduction of School based management into Indonesian Educational system since 2003 has made a great impact on teacher job satisfaction and job-performance. Recent studies showed that 57.30% of school based management directly contributed to job satisfaction and indirectly 11.10% contributed to job satisfaction through work motivation. Further investigation reported that total effect of school based management toward job-satisfaction and job-performance were 48.4% and 30.8% respectively. It was concluded that school based management contributed a great impact on teacher job-satisfaction and job-performance. Key words: job-performance, job-satisfaction, school based management

Analysis of secondary metabolite compounds from leaves extract kesambi (Schleichera oleosa) and antioxidant activity test Boima Situmeang; Weny Nuraeni; Agus Malik Ibrahim; Saronom Silaban
Jurnal Pendidikan Kimia (JPKim) Vol 8, No 3 (2016): Desember
Publisher : Pascasarjana Universitas Negeri Medan

Abstract. Kesambi (Schleichera oleosa) is one of plants that have the potential to treat various deasease. Kesambi plant or kusum widely spread in Asia such as India, Nepal, Malaysia and Indonesia. In Indonesia, this plant widely available in Java precisely Cilegon and Jember area. This study aimed to analyze the content of secondary metabolites from plants kesambi extract and antioxidant activity test of hexane, ethyl acetate and water fraction. Analysis of secondary metabolites is done with phytochemical and GC-MS test methods. Extraction was done by using maceration and fractionation methods. Antioxidan tactivity test using DPPH methods. The content of secondary metabolites contained in leaves kesambi (Schleichera oleosa) are flavonoids, alkaloids, tannins, phenols, and steroids. Based on IC50 values were obtained from three fraction, ethyl acetate fraction had a strong radical inhibition rate than the fraction of water and n-hexane. IC50 fraction of ethyl acetate, water, and n-hexane successively are: 206.0851; 272.2891 and 425,1143 ppm respectively. Keyword: kesambi, schleichera oleosa, DPPH, antioxidant

Synthesis and characterization of capsule shells non gelatin grass jelly leaves-seaweed as drug delivery system material Micha Mahardika; Fauzan Amin; Ika Agustia Umami; Boima Situmeang; Agus Malik Ibrahim
Jurnal Pendidikan Kimia (JPKim) Vol 13, No 1 (2021): April
Publisher : Pascasarjana Universitas Negeri Medan

Drug delivery system is a system that describes the journey of a drug to its target location. The main component of the drug delivery system is gelatin. The leaves of grass jelly-seaweed are needed as a raw material for gelatin. The main component of gelling agents in grass jelly leaves and seaweed is a low-methoxy pectin polysaccharide. Pectin from previous study is used as a synthesis material for hard capsule shells with the addition of other ingredients, which are Na-CMC, sorbitol, and water. The characterization results of capsule shells with variations in the composition of grass jelly-seaweed leaves 0: 4, 1: 3, 2: 2, 3: 1, and 4: 0 (A, B, C, D and E) have a disolving time of 12 minutes 45 seconds; 15 minutes 53 seconds; 23 minutes 10 seconds; 15 minutes 35 seconds and 18 minutes 12 seconds. The swelling degree test each of 200%; 266,7%; 303.3%; 586.7% and 643.3%. Furthermore, the shells of grass jelly-seaweed leaf capsules were tested for their material performance in the cefadroxyl disolving test with variations in sampling time of 10, 20, and 30 minutes.Keywords: Cefadroxyl, Drug delivery system, Green grass jelly leaves, Non-gelatin capsules, Seaweed

UJI EFEK ANTIINFLAMASI EKSTRAK ETANOL DAUN BINAHONG (Anrederacordifolia) SECARA ORAL Yuziani Yuziani
Jurnal Pendidikan Kimia (JPKim) Vol 7, No 1 (2015): April
Publisher : Pascasarjana Universitas Negeri Medan

Abstrak. Binahong (Anrederacordifolia) is a type of creeping plants basellaceae family members are empirically used by the public to assist in the healing of various diseases, among them for treating wounds or speed the drying process. The most widely used in the treatment is the leaves, although there has been no clinical data on efficacy. Binahong contains saponins, triterpenoids, flavonoids and essential oils . Flavonoids are compounds that have a variety of different bioactivit, including analgesics and anti-inflammatory. The purpose of this study is to see anti-inflammatory effects of ethanol extract of leaves binahong orally to rats. The study was conducted experimentally to test the analgesic activity of orally . In this study, the research subjects were Wistar rats and plant extract made by maceration binahong using 96 % ethanol, then ethanol extract of leaves binahong divided into three doses are dose of 100 mg / kg bw, 200 mg / kg bw, 400 mg / kg bb. Physics run private pain inducers used tool in which the rat plantar test infra-red transmitter is placed at the foot of rats and mice ever seen interesting and lick her feet. Diclofenac sodium is used as a positive comparison . The data obtained were statistically tested using ANOVA (n = 6 , P > 0.05). Result data shows that (1) there were a significantly antiinflammatory effect of oral test showed that inflammation persetase EEDB at a dose of 100mg / kg bw, 200 mg / kg bw and 400 mg / kg bw different between SND 2.25 mg / kg bw. (2) The percentage inflammation SND 2,25 mg / kg bw , followed by EEDB 400 mg / kg bw , 200 mg / kg bw and 100 mg / kg bw . (3) Result data which is indicated by Ducan test that SND 2.25% mg / kg bw show most excellent anti-inflammatory effects in follow EEDB dose of 400 mg / kg bw . This shows that an increase in the effect is directly proportional to the dose. Research shows that the ethanol extract of the leaves have anti-inflammatory activity binahong statistically similar with diclofenac sodium . Preparations Binahong leaf ethanol extract tested showed good results as anti-inflammatory at a dose of 400 mg / kg bw compared with a dose of 100 mg / kg bw and 200 mg / kg bwKeywords: Test Antiinflamasi , Ethanol Extracts , Leaf Binahong , Oral

The Development of Problem Based Learning Modules of Acid Base Materials in SMA N 5 Jambi in Developing Student Metacognitive Skills Pauline Dewi Triani; Nazarudin Nazarudin; M Rusdi
Jurnal Pendidikan Kimia (JPKim) Vol 9, No 1 (2017): April
Publisher : Pascasarjana Universitas Negeri Medan

Abstract: This research was motivated by the successful development of modules that serve as self-learning material for students, but the previous development of article the modules only show tasks in the form of multiple choice questions and essay. While there are so many types of tasks in the form of problems that can be used to improve student learning. This research goal was to understand how to develop module based on problem-based learning which are efficient and beneficial for the students, to analyse the application of problem-based learning modules on acid-base materials, and to understand the impact of problem-based learning modules to improve students' metacognition skills.This research used ADDIE development model consist of analysis, design, development, implementation, and evaluation. The data obtained from each stage of the ADDIE development model in the form of qualitative data were described. These were obtained from expert validators students and teachers. The problem based learning module developed by the researcher has been validated by two expert validators. The results from a small group trial showed that the students were able to follow each stage contained in modules well and was able to increase their metacognition skills using this module.Keywords: modules, problem-based learning, metacognition

Efektifitas Media Peta Konsep Untuk Meningkatkan Hasil Belajar Kimia Umum I Mahasiswa Program Studi Pendidikan Matematika Pada Materi Stoikiometri Freddy Tua Musa Panggabean; Nora Susanti
Jurnal Pendidikan Kimia (JPKim) Vol 7, No 3 (2015): Desember
Publisher : Pascasarjana Universitas Negeri Medan

Abstract. Chemistry is very appropriate if taught using chemistry concepts with attractive appearance so it is easy to understand. So that students can be attracted and interested in learning the concepts of chemistry and can improve student learning outcomes are achieved, one way to do lecturer is by applying the concept of learning to use the concept map media. In this study a comparison between groups of students who were learning with media concept map with a group of students who were learning without media concept map. Results of the study proved that learning with concept maps media effectively used in improving student learning outcomes and interest study program mathematics FMIPA UNIMED in following the general chemistry course-I on learning stoichiometry. The average increase in learning outcomes (gain scores) students are given learning with concept maps media (lesson-1 = 0.67±0.20; lesson-2 = 0.68±0.16; lesson-3 = 0.79±0.15; and the overall lesson = 0.71 ± 0.11) higher than the average increase in learning outcomes (gain scores) students are given learning without media concept map (lesson-1 = 0.50±0.20; lesson-2 = 0.58±0.16; lesson-3 = 0.62±0.14; and the overall lesson = 0.57±0.11). Similarly, with an average increase in interest in learning (gain score interests) students are given learning with media concept map (0.46±0.10) was higher than the average increase in interest in learning (gain scores interest) given student learning without media concept maps (0.23±0.11). Keywords: concept map, interest, learning outcomes

Development of guided inquiry based modules to improve learning outcomes and metacognition skills of student Intan Pratiwi; Ismanisa Ismanisa; Asep Wahyu Nugraha
Jurnal Pendidikan Kimia (JPKim) Vol 11, No 2 (2019): August
Publisher : Pascasarjana Universitas Negeri Medan

This study aims to find out the guided inquiry-based acid-base module that have been developed meets the criteria of the National Education Standards Agency (BSNP); learning outcomes increase after being taught using guided inquiry based modules; there is a relationship between student learning outcomes with student metacognition skills. The population was all students of class XI Senior High School Education Foundation Mulia Medan Academic. Class XI Science was chosen as the sample determined by simple random sampling. The research method used is the development research using the ADDIE model (Analysis, Design, Development, Implementation, and Evaluation). The research instrument was a learning outcome test, a metacognitive questionnaire taken from the Metacognitive Awareness Inventory (MAI) instrument, and a validation sheets. Data analysis was conducted using descriptive analysis, feasibility analysis, the results of the metacognitive questionnaire, and the results of learning tests. The hypothesis test using the t-test and assisted with the SPSS 19.0. The results of the study showed that the modules were developed according to the criteria of the National Education Standards Agency (BSNP)obtained: content = 3.85; language = 3.89; presentation = 3.83; graphic = 3.87 with valid criteria;tcount is greater than ttable (8.321> 1.708) shows that student chemistry learning outcomes increase after being taught using guided inquiry-based modules; the results of the correlation obtained rcount>rtable(0.472 > 0.388) showed that there is a relationship between metacognition skills and chemistry learning outcomes of students.Keywords:Development research; learning outcomes;guided inquiry; metacognition skills; module

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