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Jurnal Penelitian Pendidikan IPA (JPPIPA)
Published by Universitas Mataram
ISSN : 24602582     EISSN : 2407795X     DOI : -
Core Subject : Science, Education, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Materials Science & Nanotechnology Physics
Science Educational Research Journal is international open access, published by Science Master Program of Science Education Graduate Program University of Mataram, contains scientific articles both in the form of research results and literature review that includes science, technology and teaching in the field of science. The Science Educational Research Journal is published twice in a year in January and July editions. The editors receive writing in Indonesian or English, either from the university or from outside the university.
Arjuna Subject : -
Articles 6,280 Documents
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Development of Student Worksheets Based on Comics to Improve Students' Motivation and Learning Outcomes on Material Vibration, Waves and Sound Niswatul Khaira; Yusrizal Yusrizal; Abdul Gani; Muhammad Syukri; Elisa Elisa; Evendi Evendi
Jurnal Penelitian Pendidikan IPA Vol. 6 No. 2 (2020): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v6i2.424

Abstract

This research develops a comic-based student worksheet to learn about feasibility, learning outcomes, and motivation of the student worksheet. The research was carried out using research and development (R&D) methods with the ADDIE development model. The implementation of this comic-based Student Worksheet uses a pretest-posttest control group design. The population in this study were students of class VIII at MTsN 3 Banda Aceh. The samples in this study were 57 students in the class of Abu Bakar Ash Siddiq and Zaid bin Thabit who were selected by purposive sampling. Data collection using validation tests, written tests, and questionnaires. The results of the feasibility test showed that the Developed Student Worksheet was included in the feasible category with an average score of assessments by experts and natural science teachers of 91.25% and 99.03%. Analysis of learning outcomes data using the t-test, obtained tcount>ttable (4.42> 2.01) shows that there are differences in the value of student learning outcomes between the experimental and control classes where the value of the experimental class is higher than the control class. Results of analysis Motivation of students tcount>ttable (15,53> 2,01) also shows the use of comic-based worksheets can increase students' learning motivation so that it can be concluded that the use of comic-based worksheets is feasible, it can improve student learning outcomes and motivation
SINTESIS SERBUK BARIUM HEKSAFERIT YANG DITAMBAH DENGAN LOGAM Mn SEBAGAI MATERIAL ANTI RADAR Khalilurrahman -; Susilawati -; Kosim -
Jurnal Penelitian Pendidikan IPA Vol. 2 No. 1 (2016): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v2i1.36

Abstract

Barium Heksaferit (BaFe12-xMnxO19) powder synthesis was added with Mn metal using coprecipitation method. The purpose of adding these metals to see the effect of adding Mn metal and calcination temperature of the powder color change Barium Heksaferit. The value of x in the addition of Mn metal in Barium Heksaferit is x = 0 ; 0.2 ; 0.4 ; 0.6 and calcined for 4 hours at a temperature of 400 , 600 and 800 oC. The addition of Mn metal and calcination temperature rise resulting color more brown powderKeyword: Sintesis, Barium M-heksaferit‚ Mangan (Mn)‚ kopresipitasi
Synthesis of M-Hexaferrites Material Based on Natural Iron Sand with Metal Co Doping Using the Coprecipitation Method Susilawati Susilawati; Aris Doyan; Lalu Muliyadi
Jurnal Penelitian Pendidikan IPA Vol. 7 No. 1 (2021): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v7i1.461

Abstract

The synthesis of M-hexaferrite with metal doping Co (BaFe12-3xCoxO19 ) based on natural iron sand at Ketapang beach in Pringgabaya Subdistrict, East Lombok using the coprecipitation method has been successful. The basic ingredients used in this study were natural iron sand and BariumCarbonate (BaCO3) powder, while the doping material used was Cobalt (II) Chloride Hexahydrate (CoCl2.6H2O) powder with a variety of mole fraction (X = 0.0, 0.2, 0.4, 0.6, 0.8 and 1.0). The solvent uses 37% hydrochloric acid (HCl), 25% NH4OH solution, and distilled water. The sample formed was then calcined at 200 0C, 400 0C, 600 0C, 800 0C and 1000 0C. The resulting sample shows that there is an effect of Co doping and calcination temperature in the formation of barium M-hexaferrite. The higher the mole fraction of Co doping ions and the calcination temperature, the darker the color of the powder produced. 
IDENTIFIKASI SENYAWA TURUNAN HASIL FRAKSINASI KAYU AKAR ARTOCARPUS ODORATISSIMUS Putri Ayu Mutmainnah; Aliefman Hakim; Lalu Rudyat Telly Savalas
Jurnal Penelitian Pendidikan IPA Vol. 3 No. 2 (2017): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v3i2.89

Abstract

This research has made for identification derivate compound of fractionation derivate compound of fractionation root bark Artocarpus ododratissimus. Root bark A. dodoratissimus has macerated by methanol. Fractionation by using Vacuum Liquid Choromatography with eluen variation from nonpolar till polar (n-hexane 100%; n-hexane:ethyl acetate 9:1 till 1:9; ethyl acetate 100% and ethyl acetate:methanol 9,5:0,5 and 9:1) produce main fraction. Purified by used with Gravitation Coulumb Chomatograph produce seven main fraction. Identification based on FT-IR and 1H-NMR showed that the pure compound assumed phenyl prophane derivation.Keyword: Artocarpus odoratissimus, phenyl prophane
Quality Test of Student Worksheets Based on Contextual Teaching And Learning for Class XI High School Physics Desnita Desnita; Amali Putra; Sadra Hamida; Putri Bullquis Marsa; Dira Novisya
Jurnal Penelitian Pendidikan IPA Vol. 7 No. 1 (2021): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v7i1.600

Abstract

This study aims to produce teaching materials in the form of CTL-based worksheets for class XI at Senior High School. The method used in this research is the method of development. The initial stage is an analysis of the teaching materials used by teachers at school. Before being tested on class XI students, the worksheets were validated by experts as well as physics teachers and students at Senior High School 1 Gunung Tuleh. After being validated, improvements were made according to the suggestions given. The average results of the validation of learning experts, physicists, and linguists were 0.77, 0.90, and 0.81 from all aspects. The practical value of teachers and students is 79.68 and 87.43 with the valid category. After testing the validity and practicality of the physics learning videos, the results of the effectiveness test of the learning videos were obtained to measure students' critical and creative thinking skills. The average N-gain values are 0.22 and 0.26. With the overall results obtained, it can be concluded that the contextual-based worksheets that have been developed are suitable for use in learning activities
PEMBUATAN BASIS DATA ALUMNI PROGRAM STUDI PENDIDIKAN BIOLOGI FKIP UNIVERSITAS MATARAM Lalu Japa; Gito Hadi Prayitno; I Gede Mertha
Jurnal Penelitian Pendidikan IPA Vol. 4 No. 1 (2018): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v4i1.108

Abstract

The one form of a  research as an advanced action  suggestion of the  research done by Handayani et al. (2013) was construction of a base data of alumni that could easily reach all alumni of Biology Education Study Program FKIP University of Mataram, as they are widely separated in some parts of Indonesian region.  This descriptive research provided some explanation in relation to the profile of the alumni Biology Education Study Program FKIP University of Mataram. The alumni base data was constructed based on SQL. The result of research explained that the alumni base data using SQL program was very helpful for analysis of separation and various kinds job of alumni, so the Biology Education Study Program FKIP University of Mataram could do evaluation and developing as the needed of market or job market. This research also showed during the periods of 30 years, the alumni of Biology Education Study Program FKIP University of Mataram that work as a teacher with some fluctuation. There was 92% as a teacher for the alumni period 1980-1994, and slightly increased became 93% for alumni period 1995-2004, than decreased sharply became 54% during the period of 2005-2014.Keywords: Base Data, Alumni, Based on SQL
UJI AKTIVITAS ANTIBAKTERI EKSTRAK KULIT BUAH JERUK NIPIS (Citrus aurantifolia Swingle) TERHADAP PERTUMBUHAN BAKTERI ISOLAT KLINIS Rohmi Wardani; Dwi Soelistya Dyah Jekti; Prapti Sedijani
Jurnal Penelitian Pendidikan IPA Vol. 5 No. 1 (2019): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v5i1.101

Abstract

The objective of this research was to test antibacterial activity ethanol and ethyl acetate of lime peel (Citrus aurantifolia Swingle) extract by Minimal Inhibitory Concentration (MIC) and Minimal Bactericidal Concentration (MBC) against the growth of clinical isolate bacteria. The type of this study used laboratory experimental using sensitivity test, dilution of tube and spreading plate. The experimental design used Complete Random Design using three repetitions on three concentrations i.g 25, 50, and 75%. Data was analyzed by qualitative with measuring inhibit diameter zone bacterial and qualitative using Two Way Anova followed by BNT with α= 5%. The statistical analysis showed that the solvent factor and concentration factor was significantly against growing bacterial and there was an interaction affect of both factors on S. aureus growth. The result presented that the ethanol and ethyl acetate of lime peel extract strongly inhibited Staphylococcus aureus, Staphylococcus epidermidis, and Pseudomonas aeruginosa; and midly inhibited the growth of Klebsiella pneumoniae. The MIC ethanol and ethyl acetate of lime peel extract against S. aureus, S. epidermidis and P. aeruginosa was 25% and K. pneumoniae was 50%. The MBC showed that ethanol and ethyl acetate of lime peel  extract killed bacteria P. aeruginosa at 15%, S. aureus, S. epidermidis at 20% and K. pneumoniae at 25%. Taken together, it can be concluded that ethyl acetate of lime extract more effective than that of ethanol extract was to inhibit and killed clinical isolate bacterial.Keywords: lime peel (Citrus aurantifolia Swingle), antibacterial activity, clinical isolate bacteria, MIC and MBC.
ISOLASI LIKOPEN DARI BUAH TOMAT (Solanum lycopersicum L) dan UJI AKTIVITAS LIKOPEN TERHADAP BAKTERI Salmonella thypi Earlyna Sinthia Dewi; Aliefman Hakim; Lalu Rudyat Telly Savalas
Jurnal Penelitian Pendidikan IPA Vol. 5 No. 1 (2019): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v5i1.172

Abstract

This research aims to know the effectiveness of lycopene antibacterial, through knowing bending zone lycopene towards salmonella thypi. This research has been success to isolate lycopene through extraction process used reflux method at 60oC temperature, using chloroform and methanol as antisolvent. Lycopene extract got 5,12 mg/100 g, analysis of functional groups by using spectroscopy Fourier Transform InfraRed (FTIR) detected C=C alkena alifatik at 1674,91 dan 1639,65 cm-1 wave length, C-H(CH3) detected at 1378,71 cm-1       wavelength, C-H  (stretching)  alifatikfunctional groups detected at 2853,12 cm-1 wave length, C-H alkena (stretching) detected at  2924,16 cm-1 wave length, and C-H alkena (bending) detected at  1498,86  cm-1 wave length. Inhibitory zone testing of salmonella thypi used paperdisc method with three repetitions. The mean diameter of the inhibitory zone of bacteria formed in positive control was 33,17 mm, negative control was 0 mm. Mean diameter of bacterial inhibitory zone at 3 % concentration with 3, 68 mm mean diameter and maximal Inhibitory zone at 50 % concentration with        15,12 mm mean diameter . The result of this research shown that lycopene extract has bacterial activity towards salmonella thypi Kewords: Isolation, Lycopene,  Salmonella thypi, Antibacterial
Synthesis Thin Films SnO2 with Doping Indium by Sol-gel Spin coating Syamsul Hakim; Aris Doyan; Susilawati Susilawati; Lalu Muliyadi
Jurnal Penelitian Pendidikan IPA Vol. 5 No. 2 (2019): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v5i2.254

Abstract

Abstract:This research is an experimental study that aims to support the temperature and variation of doping in making thin films. The temperature variations at room temperature annealing, 50, 100, 150, and 200oC, and doping variations of 0, 5, 10, 15, 20, and 25%. The method used in this study is sol-gel spin coating. The results showed that thin films at low temperatures were more transparent than higher temperatures and the increase percentage doping causing thin films to be more transparent. Keywords:Thin Films; SnO2; Indium, Sol-gel, Spin Coating.
Pengaruh Penerapan Instrumen Performance Assessment pada Pembelajaran IPA Berbasis Laboratorium Real terhadap Hasil Belajar Siswa Leli Hartina; Undang Rosidin; Agus Suyatna
Jurnal Penelitian Pendidikan IPA Vol. 6 No. 1 (2020): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v6i1.299

Abstract

Abstract: The purpose of this research is to determine the effect of implementing performance assessment instruments on real laboratory-based science learning in students' learning outcomes. The sample of this research was the second grade students of SMP Negeri 3 Natar. The research design used was One Group Pretest-Posttest and One Shot Case Study. The research data was taken from the pre-test, post-test, and the Performance Assessment whose results were tested by using One Sample T-Test and Paired Sample T-Test. The results of One Sample T-Test showed that there was a significant effect on the confidence level of 95% of Performance Assessment instruments implementation on real laboratory-based science learning in psychomotor abilities as indicated by the average psychomotor abilities score >75. N-gain values obtained the average n-gain value of the pretest and posttest in students' cognitive abilities is 0,45 with medium criteria, so it can be concluded that there was an improvement in students' cognitive abilities after the learning process by using Performance Assessment instruments on real laboratory-based science learning and based on paired sample t-test there was a significant difference in the 95% confidence level between the average results of the pretest and posttest, which is 39,84 on the learning outcomes of cognitive abilities using Performance Assessment instruments. Keywords: Performance Assessment Instrument, Real Laboratory, Students' Learning Outcomes.

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