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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 6,421 Documents
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Analysis of Physical Resistance of Apple Tomatoes After Exposed to A Magnetic Field Extremely Low Frequency (ELF) Intensity 600 µT and 1000 µT Sudarti Sudarti; Siti Umayatul Khoiroh Nur; Elok Permatasari; Nila Mutia Dewi; Sherly Nur Laili
Jurnal Penelitian Pendidikan IPA Vol. 8 No. 6 (2022): December
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i6.2306

Abstract

Apple tomatoes with the scientific name Lycopersicum Pyriporme can last 7 days at room temperature and 14 days if stored in the refrigerator. The purpose of this study was to examine the effect of the ELF magnetic field intensity 600 uT and 1000 uT for 30, 60 and 90 minutes on the degree of acidity (pH), density (ρ) and physical quality of apple tomatoes. The research design used was RAL (completely randomized design). Data collection on the pH variable begins with crushing the tomatoes and then measuring the pH value of each fruit using a digital pH meter. The density variable was obtained by weighing the mass of each fruit and dipping the fruit in 150 ml of distilled water as the initial volume, then the difference between the final volume and the initial volume was obtained to obtain the final density of each fruit using the density equation. Physical condition variables can be obtained by counting the number of good fruits and recording each measurement. Observations were made for 20 days with data collection on the 0, 4th, 8th, 16th, and 20th days. The results showed that there were differences in the value of pH, density and physical quality of tomatoes between the control group and the experimental group. Exposure to the ELF magnetic field can affect the activity and reproduction of pathogenic microorganisms in apple tomatoes so as to maintain the pH value, density and physical quality of apple tomatoes.
Development of Chemistry Textbooks Based Scientific Approach in Efforts to Implement Prototype Curriculum at Schools Riska Imanda; Ayu Rahmi; Sri Setiawaty; Ayu Daun Dandina; Nadia Humaira
Jurnal Penelitian Pendidikan IPA Vol 8 No 6 (2022): December
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i6.2317

Abstract

The purpose of research is to develop the chemistry textbook based on the scientific approach in implementing the prototype curriculum in schools. The development of textbooks uses the type of R & D. The R & D model used is ADDIE model which has five Phases, namely (1) analysis, (2) design, (3) development, (4) implementation, and (5) (evaluation). At the analysis is carried out with initial analysis, participant analysis students, task analysis, concept analysis, and formulating learning objectives. At Phase design is carried out preparation of core competency (KI) and basic competencies (KD), preparation of the grid/framework module, and the initial draft of the module. The development includes the assessment Phase of the expert team on the developed textbooks. Implementation and evaluation phase includes development trials to see the effectiveness of the developed textbooks. The research subjects consisted of 9 teachers’ chemical. Data collection is carried out to determine the feasibility of products that have been developed through a validation questionnaire filled out by experts and response questionnaire teachers are also students. The results showed that the -based chemistry textbooks scientific approach developed has received a very feasible assessment by experts to be tested for its use in learning. Next, the teacher's response and students towards scientific approach the developed at the trial Phase is classified as a very feasible category to be implemented in learning. In addition, chemistry textbooks based on a scientific approach are effectively used as a textbook.
The Application of Think Talk Write (TTW) Learning Model to Improve Students' Communication Skills Dewiantika Antika Azizah; Indah Karina Yulina; Siti Fatonah; Tania Avianda Gusman
Jurnal Penelitian Pendidikan IPA Vol 8 No 6 (2022): December
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i6.2331

Abstract

Communication skills are one of the mandatory skills that students must master for the development of the 21st century. The use of innovative learning models can also help students to understand the concept of material. The purpose of this study was to improve the communication skills of class X SMK students on the material of the atomic structure and the periodic table of elements by using the Think Talk Write (TTW) learning model. The research subjects used were students of class X Pharmacy in the academic year 2022/2023. Research data used on communication skills through observation sheets and study documentation and for learning outcomes used through description tests for pretest and posttest. The data analysis used was quantitative with a quasi-experimental design research type. The results showed that there was an increase in communication skills through observation sheets with an average value of 80.96 in the high category and documentation studies with an average value of 73.21 including the high category. The use of the Discovery Learning model showed that the students' communication skills had increased with an average score of 76.44 on the observation sheet in the high category and the study of documentation with an average value of 70.12 was included in the high category. The conclusion was that the application of the Think Talk Write (TTW) learning model was more effective than the application of the Discovery Learning model, so the researchers recommend to use this learning model to help improve students' communication skills
Validitas Media Augmented Reality Berbasis Representasi Kimia Tetrahedral dengan Indeks Validasi Aiken Dwi Retno Sari; Sri Yamtinah; Sri Retno Dwi Ariani; Sulistyo Saputro; Elfi Susanti VH; Ari Syahidul Shidiq
Jurnal Penelitian Pendidikan IPA Vol 8 No 6 (2022): December
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i6.2333

Abstract

The development of science and technology has brought significant changes to the world of education, especially in the teaching and learning process. In the learning process, there is an interaction between teachers and students to transform their knowledge in the learning environment. To convey this knowledge, a supporting factor in learning is needed, namely learning media. This study aims to determine the feasibility of chemistry learning media in the form of augmented reality (AR) media based on chemical tetrahedral representations on thermochemical materials. This study uses quantitative research methods, with data processing and analysis using the Aiken model. The instrument used is a validation questionnaire sheet to determine the feasibility of the media. The feasibility test itself is carried out by testing 1 chemist, 1 learning media expert, 1 learning technology expert, and 6 education practitioners. The results of the validation test of the feasibility of augmented reality media get the results of Aiken's V 0.9899, ​​which means that the media is feasible to use. However, improvements still need to be made according to suggestions from the validator so that the finalized product can be used as a measuring tool that meets the criteria.
Impact of In-House Bolus Thickness on The Percentage of Surface Dose for 10 and 12 MeV Electron Beams Sigma Nur Rismawati; Johan Andoyo Effendi Noor; Yuyun Yueniwati; Fatimah Kunti Hentihu; Margaretha Berek; Ayu Hardianti Pratiwi; Karimah Karimah
Jurnal Penelitian Pendidikan IPA Vol. 8 No. 6 (2022): December
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i6.2344

Abstract

The surface dose on electron irradiation which is received by the skin does not reach 100%, so a bolus is needed as a compensator material in order to reach or approach 100%. This study aims to create, test, and describe the effect of different thicknesses of boluses that are made of 3D printed TPU, silicone sealant and resin on equivalence with tissue and the percentage of surface dose produced. A bolus with a size of 15x15 cm2 and with variations in thickness of 0.3 cm, 0.5 cm, and 1 cm was imaged by a CT-Scan to analyze the CT-Number value and relative electron density using imageJ software. After that, the bolus was irradiated by a Linac with an energy of 10 MeV and 12 MeV to measure the surface dose using an advances marcus detector. The result of this study showed that 3D printed TPU, silicone sealant and resin are similar to some soft tissues. Silicone sealant has the highest flexibility of the two boluses. In addition, silicone sealant also produces the highest increase in the percentage of surface dose in phantom.
The Existence of Faults that Cause Earthquakes on Lombok Island: A Critical Literature Review I Gusti Ketut Satria Bunaga; Mohammad Syamsu Rosid; Titi Anggono
Jurnal Penelitian Pendidikan IPA Vol. 8 No. 6 (2022): December
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i6.2346

Abstract

This study qualitatively elaborates fault characteristics causing earthquakes in Lombok Island. Historically, Lombok Island has been 12 destructive and significant earthquakes in period of 1979 – 2018. Therefore, the island is in an earthquake-prone region. The hazard factor is one of the key factors in assessing risk. This study become important as their potential to have a big impact. A source of activity that has not been fully investigated in detail was the location of the recent major and devastating earthquake (East Lombok earthquake 2019). Consequently, there is a chance that the level of risk on the Island of Lombok will rise. According to the study’s results, a thorough investigation is required to identify and pinpoint the cause of the 2019 Lombok earthquake in order to improve the earthquake risk index and help the local government to reduce losses due to earthquakes.
Pengembangan E-Modul dengan Pendekatan Inkuiri Terbimbing Pada Materi Ekologi dan Perubahan Lingkungan di MAN 2 Jambi Ahmad Subari; Moralita Chatri; Muhyiatul Fadilah; Vauzia
Jurnal Penelitian Pendidikan IPA Vol. 8 No. 6 (2022): December
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i6.2350

Abstract

The purpose of this study was to produce an E-Module on ecology and environmental change using a guided inquiry approach that is valid, practical, and effective. This type of research is development research using the Plomp model. The development phase of this model begins with the Preliminary research phase, the Development or prototyping phase, and the Assessment phase. The instruments used in this study were validity assessment sheets, practicality assessment sheets, and competency assessment sheets for knowledge, skills, attitudes, motivation, and science process skills. The results showed that the E-Module on ecology and environmental change using a guided inquiry approach based on the expert judgment was very valid with a value of 97.59%. The practicality assessment by the teacher obtained a score of 95.83% with very practical criteria and a student assessment in the field trial (large group evaluation) with a score of 90.45% with very practical criteria. The results of the effectiveness test found that the class using the E-Module on ecology and environmental change with the guided inquiry approach had higher scores than the class that did not use the E-Module, so the use of the E-Module with the guided inquiry approach supplemented with pictures, animations and videos could help students understand the material. It can be concluded that the E-Module on ecology and environmental change with the guided inquiry approach that has been developed is in the category of very valid, very practical, and very effective in improving student learning outcomes.
bahasa inggris Margaretha Berek; Johan Andoyo Effendi Noor; Unggul Pundjung Juswono; Fatimah Kunti Hentihu; Alfian Khoiri Anto; Sigma Nur Rismawati; Ayu Hardianti Pratiwi; Karimah Karimah
Jurnal Penelitian Pendidikan IPA Vol 8 No 6 (2022): December
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i6.2364

Abstract

Research has been carried out on Measuring and Determining the Output Factors of 6 and 10 MV WFF photon beams in Small Square and Rectangular fields using Semiflex TM 31010 and PintPoint TM 31014 Ionization Chamber. This study aims to determine the value of the small field output factor. Measurements were carried out in a water phantom at a depth of 10 cm with a 100 cm SSD technique. The area of ​​the irradiation field used is (2 × 2; 3 × 3; 4 × 4; 2.5 × 1.6; 3.6 × 2.5; 4.5 × 2; and 5 × 3.2) cm2. Field output factor calculations were performed using the IAEA TRS. 483 dosimetry protocol. The results of measurements and calculations obtained for the two detectors used show that a decrease in the value of the output factor occurs when the field size is getting smaller. The output factor value in a small rectangular field looks smaller when compared to the output factor value in a small square field.
Chemical Literacy of High School Students: Analysis of Cognitive Abilities on Colloid Material Mellyzar Mellyzar; Isna Rezkia Lukman; Sirry Alvina; Ali Imron Pasaribu; Mhd. Ridwan Fadli
Jurnal Penelitian Pendidikan IPA Vol 8 No 6 (2022): December
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i6.2377

Abstract

The development of science, technology, and society requires humans to have skills beyond literacy and numeracy that are needed to survive. Scientific literacy is the focus of learning in the 21st century. Currently, the scientific literacy index of students in Indonesia is still low. Chemistry is a part of science. Chemical literacy is the ability of students to identify, analyze, and process chemical concepts to solve everyday problems and communicate scientifically the chemical phenomena that occur around them. Colloidal material in chemistry learning has some abstract concepts close to everyday life. So the purpose of this study was to determine the chemical literacy ability of students on colloidal material in North Aceh and Lhokseumawe. The subjects of this study were 217 students of class XII, in SMA North Aceh and Lhokseumawe. The instrument used in this study is a chemical literacy question in the form of a description consisting of 8 PISA standard chemical literacy questions. The result of this research is that the highest student answers are on the literacy scale with nominal criteria, while the lowest is multidimensional criteria. According to the distribution of chemical literacy scores in the Aceh region, the highest was in the medium-grade category with 142 students, and the lowest was in the high-grade category with 14 students.
Analisis Miskonsepsi Muatan IPA Materi Sistem Peredaran Darah Manusia menggunakan Asesmen Peta Konsep di Sekolah Dasar Aulia Itsna Fajriyanti; Ika Candra Sayekti
Jurnal Penelitian Pendidikan IPA Vol 8 No 6 (2022): December
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i6.2387

Abstract

Understanding of science concepts is important so that students are able to describe and relate a concept to other concepts. The reality is that students often do not understand science concepts in depth. This study aims to identify the misconceptions that occur in the content of IPA, the sub-concept of the human circulatory system with a concept map assessment. The method used is descriptive qualitative. This study uses tests and interviews as data collection techniques. This research was conducted at SD Negeri Manahan with the research subject being fifth grade students consisting of 25 students. The research guidelines were in the form of a concept map making test and interviews. The results showed that there were still students who had misconceptions about the human circulatory system, namely the value in the low category of 48% of students, medium category of 40% of students, and high category of 12% of students. The biggest misunderstanding occurs in the concept of the function and name of each organ in the human circulatory system.

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