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Jurnal Pendidikan Kimia (JPKim)
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 12 Documents
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Search results for , issue "Vol 8, No 3 (2016): Desember" : 12 Documents clear
Implementation of Cooperative Learning Model STAD (Student Teams Achievement Division) Integrated Media on Students Learning Outcomes in The Matter of Salt Hydrolysis Derin Putri Sianipar; Indriati Aulia; Ajat Sudrajat
Jurnal Pendidikan Kimia (JPKim) Vol 8, No 3 (2016): Desember
Publisher : Pascasarjana Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (444.765 KB) | DOI: 10.24114/jpkim.v8i3.4538

Abstract

Abstract. This study aims to investigate the differential of students’ learning outcome in salt hydrolysis between cooperative learning model type STAD (Student Teams Achievement Division) integrated Concept Map media, Powerpoint and Macromedia Flash. Population in this study was all students in grade XI IPA at SMAN 8 Medan Academic Year 2015/2016. Sample of this study consist of 3 classes that were collected in purposive sampling and using RAL (completely randomized design). The data that were collected are students’ learning outcomes. It was collected by using research instrument that is objective test with five answer choices. Based on validation test’s result, reliability, difficulty level test, power difference test, and instrument test’s distractor, then from 40 questions, 21 of it has been qualified but only 20 were used in this study. The result showed there was a difference of students’ learning outcomes in salt hydrolysis between cooperative learning model type STAD (Student Teams Achievement Division) integrated Concept Map media, Powerpoint and Macromedia Flash. The data that were collected are Fcount> Ftable (13,37> 3,10) and sign(0,00) < α (0,05). With mean values 70,16 (Experiment 3), 69,83 (Experiment 2), and 57,83 (Experiment 1) or in other words Macromedia Flash > PPT >Concept Map. Keywords: learning outcome, Cooperative Type STAD, media
Pengembangan Modul Pembelajaran IPA Berbasis Learning Cycle 5E pada Materi Zat Aditif dalam Makanan Nurfajriani Nurfajriani; Dyah Tri Renartika
Jurnal Pendidikan Kimia (JPKim) Vol 8, No 3 (2016): Desember
Publisher : Pascasarjana Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (341.852 KB) | DOI: 10.24114/jpkim.v8i3.4953

Abstract

Abstract. This study aims to (1) develop learning modules IPA-based learning cycle 5E in material additives in food based on established standards, (2) Determine the feasibility of learning modules IPA-based learning cycle 5E in material additives in food that are developed, and (3) find out the response of students towards science learning modules 5E learning cycle based on the material additives in food. This study is a research and development (Research and Development / R&D), conducted in SMP Smart Pure-Jam'iyatul MTsAl Washliyah Tembung. The instrument used was a questionnaire assessing the feasibility of modules based BSNP, questionnaire component 5E learning cycle in science learning modules, and questionnaire responses of students to the module design. Module learning science developed using learning strategies learning cycle 5E which consists of five stages: (1) the generation of interest (engagement), (2) exploration (exploration), (3) an explanation (explantion), (4) the elaboration (elaboration), and (5) evaluation (evaluation). The results showed that the modules developed fit for use according BSNP because it has been validated and obtained an average score of 3.55 contents feasibility, feasibility languages 3.63, 3.60 presentation feasibility and feasibility kegrafikaan 3.72. While the students' response to science learning modules 5E learning cycle based on the material in the food additives that have been developed to get a score of 3.54.Keywords: develop modules IPA, learning cycle 5E, material additives in food
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (411.191 KB) | DOI: 10.24114/jpkim.v8i3.4479

Abstract

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
Antimalarial activity and phitochemical analysis from Suruhan (Peperomia pellucida) extract Nurhayati Bialangi; Moh Adam Mustapa; Yuszda K Salimi; Ari Widiantoro; Boima Situmeang
Jurnal Pendidikan Kimia (JPKim) Vol 8, No 3 (2016): Desember
Publisher : Pascasarjana Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (565.757 KB) | DOI: 10.24114/jpkim.v8i3.5817

Abstract

Abstract. Infectious and parasitic diseases is one of various disease that the most common. Based on data from the World Health Organization (WHO) in 2011, infectious and parasitic diseases become the third largest cause of death in the world. One of the plants that have potential as an antimalarial is suruhan (Peperomia pellucida). The purpose of this study is to test antimalarial activity against Plasmodium falciparum and analysis photochemistry consituen from extract suruhan. Antimalarial activity test using Desjardin method. Extraction was done by using maceration wuth methanol as a solvent and fractionation using partition methods. Results of phytochemical screening revealed the presence of alkaloids, flavonoid, steroid, saponins and triterpenoid test results antimalarial activity fraction of n-hexane, ethyl acetate and water show IC50 values are 12.80, 2.90 and 10.74 mg/ mL respectively.Keyword: Peperomia pellucida, suruhan, antimalarial
Pengembangan Bahan Ajar Kimia Inovatif Berbasis Multimedia Untuk Meningkatkan Hasil Belajar Siswa Pada Pengajaran Termokimia Nur Winda Adha; Manihar Situmorang; Zainuddin Muchtar
Jurnal Pendidikan Kimia (JPKim) Vol 8, No 3 (2016): Desember
Publisher : Pascasarjana Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (467.015 KB) | DOI: 10.24114/jpkim.v8i3.4480

Abstract

Abstract. This research aims to develop innovative teaching materials chemistry-based multimedia to improve student learning outcomes in thermochemical material. This study is a Research and Development (R & D). This research was conducted in three schools, namely SMA Negeri 1 Percut Sei Tuan, SMA Taman Siswa, and SMA Al-Hidayah Medan. The sample in this study were selected by purposive sampling taken as many as two classes, experimental and control classes. Classroom teaching experiment were treated using innovative teaching materials chemistry-based multimedia classroom control while using the existing books in school. Prior to this research teaching materials have been assessed by two lecturers and 20 teachers chemical chemistry using a questionnaire BSNP. The results showed that (1) Analysis of the chemical on the material thermochemical book gives an average yield of assessing the feasibility of the contents of 3.61, 3.74 and appropriateness of language for the presentation of the feasibility of 3.59. (2) The components of learning be integrated into innovative chemistry teaching materials have been developed (with video integration laboratory activities carried out by the lab which penelit, integration methods and instructional media, and integration of multimedia learning). (3) Analysis of chemistry teachers and lecturers standard for analysis of the contents of about 4.33 eligibility standards, eligibility standard language of 4.12, and the standard of presentation of the feasibility of 4.20. It shows that the results of chemical analysis for innovative teaching materials based multimedia submitted are valid and do not need direvisi.Sedangkan for assessment of learning that has been developed multimedia gained an average of 3.80 is valid for use and does not need revision. (4) The results of experiments showed an increase chemistry student learning outcomes of each sample, namely: SMA Negeri 1 Percut Sei Tuan has an increased chemical learning outcomes by 69%, the SMA Taman Siswa amounted to 55.41% and the Al-Hidayah Private High School for 51.46%. (5) Analysis of student motivation measurements using innovative teaching materials chemistry-based multimedia teaching materials thermochemical the experimental class is high with an average of 72.94, and there is a positive relationship between learning motivation denagn chemistry student learning outcomes (r2 = 0.969 ) on thermochemical teaching. With the increased motivation of learning outcomes that are known from the results indicated that the results of studying chemistry students who are taught by using innovative teaching materials based multimedia kmia better than the results of studying chemistry students taught without the use of innovative teaching materials chemistry-based multimedia. Keyword: teaching materials, innovative, multimedia, learning outcomes, thermochemical
Preparationof Fe-Chitosan Schiff Base Complex Boy Chandra Sitanggang; Basuki Wirjosentono; Mimpin Ginting
Jurnal Pendidikan Kimia (JPKim) Vol 8, No 3 (2016): Desember
Publisher : Pascasarjana Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (495.364 KB) | DOI: 10.24114/jpkim.v8i3.4886

Abstract

Abstract.Chitosan Schiff base (BS) was synthesized through reaction of chitosan with salycilaldehyde, next, chitosan Schiff base (BS) reacted with Fe to form Fe-chitosan Schiff base complex (BSF). The presence of Schiff base confirmed by FT-IR at 1604,77 cm-1 for imine group. Chitosan soluble in acidic solution while chitosan Schiff base partially dissolve. Subsequently, absorption of Fe was determine with ICP-MS at 1, 2, 3, 4, 5 hours (BSF 1, BSF2, BSF 3, BSF 4, BSF 5) resulting 269,98, 289, 311,8, 361,06, 492,51 ppm. Keywords: chitosan, chitosan Schiff base, Fe complex
Perancangan Vaksin Virus Papilloma Manusia Tipe-16 Berbasis Epitop dengan Berbantukan Imunoinformatika Opik Taupiqurrohman; Muhammad Yusuf; Sukma Nuswantara; Toto Subroto
Jurnal Pendidikan Kimia (JPKim) Vol 8, No 3 (2016): Desember
Publisher : Pascasarjana Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (441.786 KB) | DOI: 10.24114/jpkim.v8i3.4535

Abstract

Abstrak. Sampai saat ini vaksinasi dianggap sebagai cara yang efektif dalam mencegah penyakit menular. Semua proses vaksinasi bekerja dengan menampilkan antigen asing terhadap sistem imun agar respon sistem imun bangkit. Bahan aktif vaksin dapat berbentuk patogen utuh (bakteri atau virus) yang dilemahkan, atau komponen patogen yang imunogenikdantelah dimurnikan. Pendekatan konvensional dalam pengembangan vaksin membutuhkan biakan mikroorganisme patogen dan diseksi dengan menggunakan teknik biokimia, imunologi, dan metode mikrobiologi dalam mengidentifikasi komponen penting terhadap sistem imunitas. Metode ini telah berhasil dalam berbagai kasus, namun gagal memberikan solusi bagi banyak patogen yang belum dapat dibuatkan vaksinnya. Dewasa ini, dimungkinkan menggunakan informasi genomik untuk mempelajari perancangan vaksin secara in silico, tanpa perlu membiakan mikroorganisme patogen. Pendekatan yang telah diberi nama 'vaksinologi terbalik' ini dapat mengurangi waktu yang dibutuhkan untuk identifikasi kandidat vaksin dan memberikan solusi baru bagi vaksin-vaksin yang selama ini sulit dikembangkan.Meningkatnya pemahaman mengenai pengenalan antigen pada tingkat molekul, telah berdampak pada pengembangan desain rasional vaksin berbasis peptida atau epitop. Konsep vaksin peptida didasarkan pada identifikasi dan sintesis kimia epitop sel-B dan sel-T yang imunodominan, yang dapat menginduksi respon imun spesifik. Perkembangan yang cepat dari teknik bioinformatika dan aplikasinya dengan sejumlah besar data eksperimen telah melahirkan bidang baru, disebut imunoinformatika. Imunoinformatika adalah cabang dari bioinformatika yang berkaitan dengan analisis in silico serta pemodelan data imunologi dan masalahnya. Kajian ini bertujuan untuk merancang vaksin virus papilloma manusia berbasis epitop berbantukan imunoinformatika. Kata Kunci: vaksin, virus papilloma manusia, bioinformatika, imunoinformatika, epitope
The Development of Innovative Colloidal Chemistry Teaching Module for XI Class of Senior High School Based on Project Based Learning Leny Novita; Eddiyanto Eddiyanto; Manihar Situmorang
Jurnal Pendidikan Kimia (JPKim) Vol 8, No 3 (2016): Desember
Publisher : Pascasarjana Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (427.469 KB) | DOI: 10.24114/jpkim.v8i3.4920

Abstract

Abstract. The development paradigm of the potential of human resources resulted in demands in all areas, not just the quality of human resources, but human character itself. Learning innovations incorporated into textbooks is expected to improve the quality of education and develop the character of the nation's generation. This research aims to develop an innovative high school chemistry textbook/MA XI for second half class based on the 2013 curriculum standards that are used to create a creative learning, effective, and fun, and help learners gain optimal learning results. The population is all high schools in North Sumatra. The sample in this study were taken by purposive sampling, namely SMA Hang Tuah Belawan, SMAN 9 Medan and SMAN 19 Medan each as much as 2 classes. Experiment and Control Class. Data were analyzed by using independent sample t-test with SPSS 20 for windows at significance levela=0.05. Results showed that innovative chemistry textbook has been successfully developed into a complete teaching materials and interactive learning relevant to the subject matter on the chemistry and sub subject in the innovative textbook of the development results. Innovative textbook can be used to study the original teacher centered learning was transformed into a student centered learning.Keywords: textbook of chemistry, curriculum 2013, the PjBL model, high school
Inovasi Buku Ajar Kimia SMA/MA Kelas XI Semester Ganjil Terinternalisasi Nilai-Nilai Karakter Siswa Riska Ritonga; Ajat Sudrajat; Eddiyanto Eddiyanto
Jurnal Pendidikan Kimia (JPKim) Vol 8, No 3 (2016): Desember
Publisher : Pascasarjana Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (544.672 KB) | DOI: 10.24114/jpkim.v8i3.4442

Abstract

Abstract. This study aims to determine: (1) Test the feasibility of High School Class XI textbook commercially complies with the standards BSNP; (2) Test the feasibility of textbook by validators to high school chemistry textbook/ MA first semester of classes XI developed in accordance with the standards BSNP; (3) Test the feasibility of textbook by validators to high school chemistry textbook/ MA Class XI the first semester have developed internalized the values of the character of the students; (4) Test the feasibility of textbook by students of the high school chemistry textbook/ MA class XI semester of internalized character values of students; (5) Improved student learning outcomes after studying with a high school chemistry textbook/ MA class XI semester of internalized character values of students; (6) The results of studying chemistry student using high school chemistry textbook / MA class XI semester of internalized character values of students better than the minimum completeness criteria. The entire sample was selected by purposive sampling. Samples were determined in this study are (1) high school chemistry book/ MA Class XI outstanding as much as four books; (2) Teachers chemistry with the criteria of formal education bachelor and experienced teaching in schools as many as 10 people, chemistry lecturer criteria have minimal formal education postgraduate were 3 people; (3) A Class XI Sains-treated using a textbook teaching high school chemistry/ MA class XI half of Odd internalized character values of students based on curriculum 2013. Based on test data analysis, the results showed that (1) Test the feasibility of commercially textbooks valid criteria and should be revised; (2) Test the feasibility of the validator against chemical textbook produced in this study meet the standards required by the National Education Standards. (2) and (3) test the feasibility of the validator and students to the textbook internalized character values of students in this study meet the standard of assessment rubrics character values developed. (4) Improved student learning outcomes using chemistry textbook produced in this study is of 0.69 which is average. (5) Based on data obtained learning outcomes sign value <0.05 (0.011 <0.05) the use of high school chemistry textbook/ MA class XI half of Odd internalized the values of the student's character better than the the minimum completeness criteria.Keywords: Buku ajar kimia, terinternalisasi nilai-nilai karakter siswa
Development of Lectora Inspire as Interactive Multimedia Chemistry Learning in Senior High School Roza Linda; Erviyenni Erviyenni; Asmadi M. Noer; NurAzlina Oktavianti; Novia Sellyna
Jurnal Pendidikan Kimia (JPKim) Vol 8, No 3 (2016): Desember
Publisher : Pascasarjana Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (633.564 KB) | DOI: 10.24114/jpkim.v8i3.4537

Abstract

Abstract: Research development of LectoraInspire Interactive Multimediafor Salt Hydrolysisand Rate of Reactiontopics aims to getavalidand practical learning media. The researchmethodwas ResearchandDevelopment withPlompmodel in LectoraInspire Interactive Multimediafor Salt Hydrolysistopic and Four-D model forReaction Ratetopic. Both Media werevalidated bythree validators andthelimitedtrialbypractitioners (users).The results showed an average score of 96.05% validator ratings for Lectora Inspire interactive multimedia on the topic of salt hydrolysis and 95.63% for interactive multimedia on the topic of reaction rate.The data analysis is based on questionnaire responses of teachers and students each earned an average score of 96.67% and 97.3% for Lectora Inspire on the topic reaction rate, 98.3% and 96.5% for Lectora Inspire on the topic Hydrolysis Salt. From the results of the average overall score of validation and testing of media-based learning Lectora Inspire on the topic of reaction rate and hydrolysis Salt were valid and can be used as a learning media.Keywords:interactivemultimedia, lectorainspire, salthydrolysis, rate reaction

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