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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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PENGEMBANGAN LEMBAR KEGIATAN SISWA (LKS) MODEL LEARNING CYCLE 5E Muhamad Zikrullah; Wildan -; Yayuk Andayani
Jurnal Penelitian Pendidikan IPA Vol. 2 No. 2 (2016): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v2i2.40

Abstract

The aims of this study were to generate 5E learning cycle model student’s work sheet wich suitable to be implemented on subject matter of the reduce-oxidace rections at class X. The method used in this study was according to the model of 4D development were Define, Design, Develop, and Disseminate. The results of limited testing by 6 students and 2 teacher’s chemistry of MAN 1 Mataram and results of the expert validation by 3 validators showed that 5E learning cycle model student’s work sheet was very suitable to be used with scores 3,36, 3,37, dan 3,33 on scale 1-4Keywords: Student’s Work Sheet, 5E Learning Cycle Model
SINTESIS LAPISAN TIPIS (THIN FILM) SnO2 DAN SnO2:Al MENGGUNAKAN TEKNIK SOL-GEL SPIN COATING PADA SUBSTRAT KACA DAN QUARTZ Yanika Diah Imawanti; Aris Doyan; Erin Ryantin Gunawan
Jurnal Penelitian Pendidikan IPA Vol. 3 No. 1 (2017): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v3i1.49

Abstract

This study has successfully synthesized SnO2 and SnO2 thin films by doping aluminum (Al) using the technique of sol-gel spin coating on glass and quartz substrates. The basic materials are Tin (II) chloride dihydrate (SnCl2.2H2O) and ethanol (C2H5OH) as solvent.  Material for doping is AlCl3 as much as 0.027 g, 0.053 g and 0.08 g to get Al dopant concentration of 5%, 10% and 15% respectively. The substrate used in this study are glass and quartz with the dimension of 10 mm x 10 mm x 3 mm. Detergent water, distilled water and 70% alcohol were used for the preparation of the substrates. Pure SnO2 sol solution was obtained by dissolving SnCl2.2H2O in ethanol, and SnO2:Al was obtained by adding AlCl3 to the solution of SnO2. The stirring process was done by using a hot plate magnetic stirrer to obtained a homogeneous solution (transparent). Sol solution of pure SnO2 and SnO2:Al were allowed for 24 hours as maturation (aging) process. Solution deposition on a substrate was done with a rotary speed of 2000 rpm for 3 minutes. Heating process was done at the annealing temperature of 200°C to 400°C by using a furnace for 1 hour to grow the crystalline of thin films. This thin films are very appropriate when applied to transparent conductive oxide (TCO) materials with high transparency and conductive character of tin (Sn) and aluminum (Al)Keyword: SnO2‚ aluminum‚ sol-gel, spin coating, substrate
PENGARUH MODEL PEMBELAJARAN DISCOVERY DENGAN PENDEKATAN SAINTIFIK DAN KETERAMPILAN PROSES TERHADAP HASIL BELAJAR FISIKA PESERTA DIDIK Nurul Hilmi; Ahmad Harjono; Harry Soeprianto
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.v3i2.85

Abstract

This study aims to determine 1) Effect of discovery learning model with a scientific approach (PDPS) on learning outcomes physics learners; 2) The effect of process skills to the learning outcomes of physics students and 3) Effect of discovery learning model with a scientific approach interaction and process skills to the learning outcomes of students. This study is a quasi-experimental design using pretest-posttes nonequivalent group design with a 2 x 2 factorial design. Data were analyzed using analysis of variance with SPSS 21. The result showed 1) Model PDPS affect the Physics learning outcomes of learners with sig (0,000 ) <α (0.05), 2) process  skills  affects the outcome of the  learning physics learners with sig (0.001) <α (0.05) and 3) There is a learning model interaction effect (PDPs-Expository) and process skills to physics learning outcomes with sig (0,000) <α (0.05)Keywords: Discovery learning model with a scientific approach,  process skills, learning outcomes
UJI AKTIVITAS ANTIOKSIDAN DAN PENAPISAN FITOKIMIA DARI EKSTRAK DAUN PAKOASI DAN KLUWIH SEBAGAI SUMBER ANTIOKSIDAN ALAMI Nurlaila Agustikawati; Yayuk Andayani; Dedy Suhendra
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.v3i2.93

Abstract

This study aims to determine the antioxidant activity and secondary metabolism of pakoasi leaf extract and kluwih leaf. Analysis using DDPH method (1,1-diphenyl-2-picrylhydrazyl). Result of antioxidant activity test in. Concentration Barriers (IC50). IC50 values for leaf extract of pakoasi and kluwih leaves were 89.659 μg / mL and 54.719 μg / mL greater than IC50 vitamin C of 46.74 μg / mL. Qualitative analysis of antioxidant compounds using TLC technique showed seven chromatogram profiles for pakoasi leaf extract and four chromatogram profiles for kluwih leaf extract. In addition, phytochemical analysis of leaf extract of pakoasi and kluwih leaves showed the presence of saponin compounds, tannins, phenols, flavonoids, steroids and triterpenoids. Based on the results of this analysis concluded that leaf extract of pakoasi and kluwih leaf as natural source of antioxidant which can be seen with IC50 value in the sample is in strong category and supported from phytolyte analysis result which according to phenol and flavonoid which act as antioxidant.Keywords: Antioxidant activity, phytochemical analysis ethanol extract, green bean leaves, kluwih leaves, leaves of pakoasi
ISOLASI, KARAKTERISASI DAN IDENTIFIKASI BAKTERI ENDOFIT KULIT BATANG SRIKAYA (ANNONA SQUAMOSA) DAN POTENSINYA SEBAGAI ANTIBAKTERI Lalu Zulkifli; Dwi Soelistya Dyah Jekti; Samsul Bahri
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.v4i1.98

Abstract

The objective of this study was to isolate endophytic bacteria from bark of srikaya, analyzing antibacterial activity of endophytic bacteria in S. aureus, B. cereus and E. coli pathogenic bacteria, characterizing endophytic bacteria capable of inhibiting the growth of pathogenic bacteria and identification of endophytic bacteria able to inhibit the growth of pathogenic bacteria. Isolation of endophytic bacteria using TSA and NA media, bioassay on pathogen bacteria with concentration of 106 cells / ml with using Ø 6 mm wells and entering supernatant of 100 μl. Supernatant was obtained by growing endophytic bacteria in NB media shaken with shaker 150 cycles / min for 48 h at 32ᵒC then culture centrifuge at 5000 g for 30 min. Positive control using cyprofloxacin. Characterization is based on the nature of the colony, Gram paint, spore formation, and biochemical tests. The results of the study yielded 13 endophytic bacterial isolates and 4 endophytic isolates capable of inhibiting the growth of 8 pathogenic bacteria with sensitive criteria, 2 pathogenic bacteria with resistant criteria and 1 pathogen bacteria can not be inhibited its growth. Gram's paint results show that 4 endophytic isolates belong to Gram-positive, rod-shaped and spore forming cells. From the character possessed by the bacteria can be identified that the 4 bacteria endofit capable of inhibiting pathogenic bacteria are Bacillus brevis, Bacillus latesporus, Virgibacillus pantothenticus, and Bacillus circulansKeywords: Characterization, Endophytic Bacteria, Bark of Srikaya, Antibacterial
PENGARUH MODEL PEMBELAJARAN PROBLEM BASED INSTRUCTION TERHADAP HASIL BELAJAR DITINJAU DARI GAYA BELAJAR SISWA Yuni Permatasary; Agus Abhi Purwoko; Muntari Muntari
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.v4i1.104

Abstract

The aim of this study are: (1) to determine differences on learning achievement between  students who obtained PBI learning model and who received conventional learning models; (2) to determine the different of students achievement on different learning styles (visual, auditory and kinesthetic). The population of this study on all class X SMAN 7 Mataram students (570 students). Two classes were chosen as sample of this study (64 students). Instruments in this study consisted of paper and panel test of learning achievement and quetsionair of student’s learning styles. The results of data analysis showed: (1) PBI learning model significantly influence on student learning achievement; (2) the learning style does not significantly affect to learning achievement.Keywords: Problem Based Instruction, learning styles, student learning achievement
PENINGKATAN PEMAHAMAN KONSEP DAN MOTIVASI BELAJAR SISWA MELALUI SIMULASI PHYSIC EDUCATION TECHNOLOGY (PhET) Khaerunnisak Khaerunnisak
Jurnal Penelitian Pendidikan IPA Vol. 4 No. 2 (2018): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v4i2.109

Abstract

Simulation of Physic Education Technology (PhET) is a simulation that contains about learning physics, chemistry and biology. PhET can replace a real lab into a virtual lab for PhET simulations can provide a learning experience at the same time play. This study aims to determine the effect PhET simulations of improving understanding the concept of the material liquid pressure and to determine the effect PhET simulations to increase student motivation to learn the material pressure liquid. Subjects in this study were students VIIIA and VIIIB MTsS Insan Quranic, Aceh Besar, with the number of students are 30 children. The VIIIA Class is the reference class in this study and the VIIIB classis the subject of experimental class. This study used a quasi-experimental. The instrumen  research used understanding test of concepts and questionnaires. The conseptual understanding is conducted by pretest and posttest, each of the testconsisting of 15 questions choice. The questionnaire to measure students motivationusing Likert scale.Keywords: PhET Simulation, Conseptual Understanding, Learning Motivation
EKSTRAKSI SELULOSA BATANG TEMBAKAU SEBAGAI PERSIAPAN PRODUKSI BIOETANOL Sri Seno Handayani; Amrullah Amrullah
Jurnal Penelitian Pendidikan IPA Vol. 4 No. 2 (2018): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v4i2.130

Abstract

Nowadays the need for fuel has always improved as following the increase in community and industry activities. Therefore, we need to search for resources of alternative energy. The tobacco rod is one of the lignocellulosic materials which has three main components namely cellulose, hemicellulose and lignin. The production of bioethanol from lignocellulosic materials is strongly influenced by the composition of cellulose in its raw materials. This research use  the cellulose extraction of tobacco rods by a bases method on NaOH concentrations are 2.5%, 5%, 7.5%, 10% and 12.5% (v/v) . The results show that the concentration of NaOH strongly influences the yield of cellulose extracted. The highest cellulose yield of the extraction is obtained on 12.5% of NaOH concentration.Keywords:Extraction, cellulose, tobacco rod, bioethanol
RELEVANSI BUDIDAYA RAMAH LINGKUNGAN TERHADAP PERLINDUNGAN LAMUN SKALA LOKAL DI PESISIR LOMBOK TIMUR Abdul Syukur; Mahrus Mahrus; Syachruddin AR
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.v5i1.150

Abstract

The environment in coastal areas is currently undergoing a process of exploitation, and in some locations the condition of natural resources is already at a critical point. This research is designed to make eco-friendly cultivation model as a small-scale fisherman livelihood supplement and local seagrass protection strategy. The virtues of this research include three aspects: (1) environmental aspect, (2) economic aspect of small fisherman and (3) social aspect in creating value of togetherness among community member in study location. Taking research data using direct observation method, interview and in-depth discussion. Respondents in this research are fishermen and fishermen caught fishermen group that catch fish around the seagrass area. Further data obtained before the analysis is validated through in-depth discussion. Data analysis using discrete statistic method. The results showed that environmentally friendly cultivation has become the livelihood of fishermen in the study location, and they get additional income of Rp. 7,500. 000 within a period of cultivation (6-7 months). In addition, they earn additional income of Rp. 200,000 from fishing service by utilizing the means of cultivation (KJA). Furthermore, the farmer's fishermen are aware of the negative effects of the utilization that are disruptive from the use of bombs and potassium to cultivation and they play an active role in preventing it. In this case, smallholder cultivation has relevance in seagrass habitat protection and can be considered in the policy of empowering fisherman's economy and conservation of local coastal environment outside conservation area. Keywords: Value of eco-friendly cultivation, small Nealayan and Local scale seagrass protection
THE EFFECT OF PROCESS ORIENTED GUIDED INQUIRY LEARNING MODEL BASED ON VIRTUAL LABORAORY TOWARD PROBLEM SOLVING ABILITIES OF PHYSICS STUDENT Putu Wira Sanggara; Aris Doyan; Ni Nyoman Sri Putu verawati
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.v5i1.154

Abstract

Abstract - This study aims to determine the effect of Process Oriented Guided Inquiry Learning model of Virtual Lab to the ability of solving physics problem of high school students of class X. This research type is quasi experiment with pretest-postest control group design research design. The population of this research is all students of class X MIPA SMAN 1 Kuripan with sampling technique using purposive sampling. There are two samples taken are the sample as experimental class given treatment in the form of learning using learning model POGIL assisted Virtual Lab and control class treated using conventional learning model. Data collection of problem-solving abilities is done by a blueprint test technique. The research hypothesis was tested by using the t-test polled variance with 5% significance. It was concluded that the use of Process Oriented Guided Inquiry Learning model (POGIL) with Virtual Lab has an effect on students problem solving ability with ttable = 2,00 <tcount = 3,11. Keywords: POGIL, Lab Virtual, Problem Solving Ability,

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