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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.
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Articles 21 Documents
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Search results for , issue "Vol. 7 No. 1 (2021): January" : 21 Documents clear
Application of Virtual Laboratory assisted Discovery Learning Model to Improve Science Process Skills and Learning Outcomes in Circulatory System Material Misbahul Jannah; Ibnu Khaldun; Safrida Safrida
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.v7i1.470

Abstract

Discovery learning (DL) model is a learning model that hones students' process skills in finding concepts. Science process skills are needed to support optimal learning outcomes. The absence of a laboratory is thought to be the cause of the less optimal learning process so that supporting media such as virtual laboratories (VL) are needed. This study aims to determine the effect of implementing the VL-assisted DL model to improve Science Process Skills (SPS) and student learning outcomes in the circulatory system material. The research design used was the pretest-posttest control group design. The study population was all students of class VIII Junior High School Darul Ihsan Aceh Besar, and the sample selection was using random sampling techniques so that 60 students were selected as the research sample who were divided into two classes. The results showed that the application of the VL-assisted DL model in the experimental class experienced an increase in SPS by 71.05 (high category) compared to the control class. The application of the VL-assisted DL model also experienced an increase in learning outcomes, namely 73.16 (high category). The conclusion in this study is the application of the VL-assisted DL model to the circulatory system material has an effect on improving SPS and learning outcomes
The Implementation of Performance Assessment Through Virtual Laboratory to College Students’ Creative Thinking Skills Ratih Permana Sari; Mauliza Mauliza; Muhammad Nazar; Nahadi Nahadi
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.v7i1.484

Abstract

Recent learning activity is tend to be implemented by guided experiment and there is an absence of further assessment. The aim of this study is to implement the performance assessment through the virtual laboratory to improve college students’ creative thinking skills. This quantitative descriptive research used quasi experimental research method with one shot case study research design. The sample of this research was the college students on academic year 2018/2019 which totally amount 27 students. The performance assessment data was collected by observation instrument which applied during the preparation, implementation, and the presentation of experiment result stages of virtual laboratory learning. The result of the study showed the implementation of assessment on the presentation of experiment result stage for the whole learning materials is higher than in the preparation and implementation stage with the average score of presentation of experiment result is 88.3%. The implementation of performance assessment through the virtual laboratory showed the improvement on each indicator in college students’ creative thinking skills. The highest score was the evaluation indicator with the value of 0.69. It can be concluded that the implementation of performance assessment through the virtual laboratory is able to improve college students’ creative thinking skills, especially at the evaluation indicator
The Effects of the Number of Coated Fuel Particles on the Neutronic Aspects of 25 MWt Pebble Bed Reactor with Thorium Fuel Dwi Irwanto; Nining Yuningsih
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.v7i1.544

Abstract

High-Temperature Gas Reactor (HTGR) is a type of reactor that continues to be developed because of its advantages in terms of economic aspects, proliferation resistance, and safety aspects. One of the safety aspect improvements is due to the use of the Coated Fuel Particle (CFP). A coated fuel particle is a fuel with a diameter smaller than 1 mm and is protected by several carbon layers. In the Pebble Bed Reactor (PBR) type of HTGR design, the CFP is placed in a 6 cm fuel ball. How much CFP is put into the fuel ball will determine the neutronic characteristics of the reactor. In this study, the effect of the amount of CFP in the fuel ball on the 25 MWt PBR design using Thorium fuel and its impact on several important neutronic aspects, such as the effective multiplication factor, the amount of fuel enrichment, the utilization of fissile material, and the density of the fissile material formed. The calculation was performed by the Monte Carlo MVP / MVP-BURN code. This study found that the coated fuel particle fraction of 15% was the optimum value for the studied neutronic parameters.
Application of the Science Technology Society (STS) Model to Craft and Entrepreneurship Materials to Develop Soft Skills of Students Fira Roswita; Sulastri Sulastri; Ibnu Khaldun
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.v7i1.525

Abstract

The development of information technology requires students to have life skills when they enter workplaces. Soft skills are one of the skills that students must have. This research aims to analyze the application of the science technology society (STS) model to develop their soft skills. The method used in this research is a pre-experimental design with a one-shot case study design. The population was the students of class XI MIA with simple random sampling used as the sampling technique, and the research subjects were thirty-two (32) students of class XI MIA 2 that were divided into six groups. The results showed that the application of STS-based student worksheets could develop their soft skills about 88.15%, categorized as very good, and had high qualifications
Analysis of Validation Development Science Learning Tools using Guided Inquiry Model Assisted by Real Media to Improve the Understanding Concepts and Science Process Skills of Students Susilawati Susilawati; Aris Doyan; Putu Artayasa; Hary Soeprianto; Ahmad Harjono
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.v7i1.473

Abstract

Development of natural science learning tools with guided inquiry model assisted by real media to improve students' mastery of science process concepts and skills has been successfully carried out. The purpose of this development is to produce a science learning tool guided Inquiry model assisted by valid real media. The development of these tools uses the 4D model (define, design, develop, and disseminate). Science learning tools developed in the form of syllabus, lesson plan implementation, student worksheets, science process skills instruments, and students' mastery of concepts. The results showed that the device validation process developed with the guided inquiry learning model fulfilled the content validation and construct validation. This suggests that it has produced a very valid device
Synthesis of Tin Oxide Thin Layer by Doping Aluminum, Fluorine, and Indium Using Sol-Gel Spin Coating Technique Aris Doyan; Susilawati Susilawati; 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.v7i1.468

Abstract

The synthesis of tin oxide thin films with doping aluminum, fluorine, and indium (SnO2: Al + F + In) by sol-gel spin coating technique has been successfully carried out. This synthesis aims to determine the quality of the thin film formed by adding doping aluminum, fluorine, and indium. The basic material used is SnCl2.2H2O, while the doping material used is AlCl3, NH4F, and InCl3.4H2O. The comparison of the basic ingredients and doping mixture of aluminum, fluorine and indium (SnO2: Al+F +In) used were 100: 0%, 95: 5%, 90: 10%, 85: 15%, 80: 20% and 75: 25%. The synthesis uses a glass substrate with size (10 x 10 x 3) mm. Coating synthesis includes substrate preparation, sol-gel making, film making, and sample heating. The layers that are made consist of 1 to 4 layers. The results showed that the layer formed had a high degree of transparency along with the increasing concentration of the doping material percentage. The higher the doping concentrations of aluminum, fluorine, and indium, the higher the transparency of the resulting layer. Besides, the greater the number of layers, the lower the transparency level of the layers
Evaluation of the Electronic Structure Resulting from ab-initio Calculations on Simple Molecules Using the Molecular Orbital Theory Samuel E P P Masan; Fitri N Febriana; Andi H Zaidan; Ira Puspitasari; Febdian Rusydi
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.v7i1.545

Abstract

Hartree Fock (HF) and Density Functional Theory (DFT) have been commonly used to model chemical problems. This study uses the Molecular Orbital Theory (MOT) to evaluate the electronic structure of five diatomic molecules generated by HF and DFT calculations. The evaluation provides an explanation of how the orbitals of a molecule come to be and how this affects the calculation of the physical quantities of the molecule. The evaluation is obtained after comparing the orbital wave functions calculated by MOT, HF, and DFT. This study found that the nature of the Highest Occupied Molecular Orbital (HOMO) of a molecule is determined by the valence orbital properties of the constituent atoms. This HOMO property greatly influences the precision of calculating the molecular electric dipole moment. This shows the importance of understanding the orbital properties of a molecule formed from the HF and DFT calculations
Real Time Measurement for Spring-Mass System: The Graphical and Mathematical Representations Nurul Hidayat; Erni Yulianti
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.v7i1.458

Abstract

Mathematics is the language of physics. The best way to describe a physical phenomenon is by describing its mathematical representations. In addition, viewing the graphical diagram of the corresponding mathematical expression is crucial to deeply understand the physical events. Therefore, setting simple experiments in real time to (1) observe the phenomena, (2) view the related diagrams, and (3) extract the mathematical representations is required. In this study, the real time and simple experimental set-up (consisting of ultrasonic sensor HC-SR04 connected to an Arduino Uno board) was designed to perceive the motion of a spring-mass system. The spring force, which is equal to the object’s weight, and displacement or spring elongation data were recorded for the object (with varying mass) attached to the spring. A small external downward force was given to stimulate the simple harmonic motion of the vertical spring-mass system. The displacement as the function of time of the spring-mass motion was recorded. With those measurements, the sinusoidal patterns, representing the simple harmonic motion characteristics, were also observed. The spring constants were 6.35(2) N/m and 6.26(1) N/m for the displacements measured by sensor and ruler, respectively. The periods form the angular frequency of the displacement function and from the spring constant (acquired from sensor data fitting) showed consistent results with very high accuracy. This simple experimental set-up is believed to fulfill the technological-based learning demand.
Validity of Ethnoscience Based Chemistry Learning Media Emphasizing Character Values and Conservation Behavior Rizki Utari; Yayuk Andayani; Lalu Rudyat Telly Savalas; Yunita Arian Sani Anwar
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.v7i1.469

Abstract

This study aims to obtain a valid chemistry learning device based on ethnoscience emphasizing character values and conservation behaviors. This study refers to the 4D model from Tiahgrajan, S. Semmel & Semmel which was modified into three stages, namely define, design, and develop. The chemistry learning kit that has been validated by three experts consisted of ethnics-based chemistry modules, lesson plans, student worksheets, and questionnaire sheets. The validity of chemistry learning devices was analyzed using the Aiken's V formula which was consulted to the criteria in the validity table. The results showed that the developed devices were appropriate for use in learning with an individual score of each component as follows: the implementation plan of learning got a score of 0.91 (very valid), the Chemistry module got a score of 0.91 (very valid), the student worksheet got a score of 0.89 (very valid), and the poll got a score of 0.72 (valid)
Development of Natural Science Learning Tools with Guided Inquiry Model Assisted by Real Media to Improve Students' Scientific Creativity and Science Process Skills Aris Doyan; Susilawati Susilawati; Hardiyansyah Hardiyansyah
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.v7i1.485

Abstract

This study aims to develop science learning tools with guided inquiry models assisted by real media to improve scientific creativity and science process skills of grade VIII students at SMP IT Male and SMP IT Female Mataram on light and optical equipment. The development of this tool adopts the development of Dick and Carey. The resulting products are in the form of learning tools in the form of syllabus, lesson plans, LKPD, scientific creativity instruments and science process skills. Before being used, the device was validated by four expert validators and the result was that the device developed was suitable for use in learning. To test the effectiveness of the device, scientific creativity and scientific process skills were tested. The results of the scientific creativity test obtained an average N-Gain of 0.4. This shows that the device developed is quite effective in increasing the scientific creativity of students in the two schools being the subject. The second effectiveness test is the science process skills test. The average N-Gain value obtained was 0.7, this indicates that the learning device developed with a guided inquiry model assisted by real media is very effective in improving students' science process skills.

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