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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 6,093 Documents
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Pengaruh lama penyimpanan buah terhadap karakteristik dan aktivitas antioksidan minyak biji labu kuning (Cucurbita moschata) “tipe Butternut” Hidayati, Nur Rahmah; Ratih, Putri Deti; Wuryandari, Tutik
Jurnal Penelitian Pendidikan IPA Vol 11 No 1 (2025): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i1.10165

Abstract

Pumpkin (Cucurbita moschata) contains bioactive compounds that are spread almost throughout the organs. One of the important contents of pumpkin is seed oil which has antioxidant activity. Antioxidants play a role in counteracting free radicals so that it is widely used to improve health quality. Fruit storage can affect seed quality and antioxidant activity in it. The purpose of this study was to evaluate and compare the chemical characteristics and antioxidant activity of pumpkin seed oil with different fruit storage times. The method for obtaining pumpkin seed oil from fruit storage for 10, 20, and 30 Days After Anthesis (DAH) was carried out using the soxhlet extraction method. The extracted oil was thickened using a rotary evaporator. Furthermore, its chemical characteristics were tested including yield, acid number, peroxide number, saponification number, water content. Pumpkin seed oil was measured for its antioxidant activity using the DPPH method. Absorbance was measured at a wavelength of 526 nm using a UV-Vis spectrophotometer. The data obtained were analyzed using ANOVA followed by the DMRT test with a 95% confidence interval. The results showed that there were significant differences in the variation of fruit storage time including oil yield, acid number, saponification number, and antioxidant activity, while there was no difference in water content. Fruit storage time of 30 DAH gave the most optimal results in all parameters tested. The conclusion that can be drawn from this study is the characteristics and antioxidant activity of pumpkin seed oil at a storage time of 30 DAH produced better oil quality compared to storage times of 10 and 20 DAH.
Studi Pemanfaatan Pupuk Organik Cair dari Air Lindi TPA Tlekung Kota Batu dengan menggunakan Ecoenzyme sebagai Biodegradasi Logam Berat (Pb, Cu) Astuti, Luluk Indri; Srihardyastutie, Arie; Fardiyah, Qonitah
Jurnal Penelitian Pendidikan IPA Vol 11 No 2 (2025): February
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i2.3466

Abstract

Leachate is water produced from the waste processing process at the final disposal site (TPA). Leachate contains various organic substances, so many local people use leachate as fertilizer. However, on the other hand, leachate contains heavy metals. As an effort to reduce the content of heavy metals such as Pb and Cu, biological remediation techniques are used by adding ecoenzymes. This study aims to determine the effectiveness of ecoenzymes on leachate at the Tlekung TPA, Batu City. Leachate at the inlet point of Tlekung Landfill, Batu City was taken as much as 20 liters and the volume of ecoenzyme was varied, namely P1 (leachate 1000 ml), P2 (leachate 1000 ml + 1 ml ecoenzyme), P3 (leachate 1000 ml + 5 ml ecoenzyme), P4 (leachate 1000 ml + 10 ml ecoenzyme), P5 (leachate 1000 ml + 15 ml ecoenzyme). The research stages were carried out by testing the pH using a pH meter, testing the number of colonies using the Total Plate Count (TPC) method, testing the levels of lead (Pb) and copper (Cu) using the AAS method. The results showed that the addition of ecoenzyme to leachate affected the pH value, increased the number of colonies and decreased the levels of Pb and Cu metals. The addition of 10 mL of ecoenzyme in 1000 ml of leachate in the P4 treatment could increase the number of colonies and reduce the levels of Pb and Cu.
Probabilitas Menemukan Elektron Atom Tritium dalam Ruang Momentum dengan Bilangan Kuantum Utama n ≤ 3 Supriadi, Bambang; Zannah, Hildatul; Ahadah, Salfa Zahroh; Sa’diah, Aminatus; Chandani, Erika Divian
Jurnal Penelitian Pendidikan IPA Vol 11 No 2 (2025): February
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i2.4032

Abstract

The tritium atom is an isotope of the hydrogen atom which only has one electron, so this research aims to determine the probability of finding a tritium atom electron ((_1^3)H) in momentum space with the principal quantum number n ≤ 3. This research is included in non-experimental research using literature study methods related to quantum mechanics. To determine the probability data for the electron momentum of the Tritium atom ((_1^3)H) numerical calculations were used using the Matlab R2021a program. The results obtained in this research are in the form of probability values for the electron momentum of the Tritium atom ((_1^3)H) which will provide an overview of the existence of electrons in the momentum space. Based on the research results, it can be shown that in momentum space, the probability of finding a Tritium atom electron increases as the principal quantum number (n) increases.
The Validity of Online Assessment Instruments for Measuring Higher Order Thinking Skills of High School Students in Physics Subject Rahmah, Siti; Festiyed
Jurnal Penelitian Pendidikan IPA Vol 11 No 2 (2025): February
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i2.4993

Abstract

Assessment instruments are assessment tools consisting of tests and non-tests which guide educators in making decisions and obtaining information on students' progress or achievement of competencies. A good assessment instrument has several requirements, including being valid and reliable. Currently there are no valid and reliable assessment instruments available that can measure students' higher order thinking skills, especially in high school physics subjects. This research aims to produce a valid and reliable instrument for measuring students' higher order thinking skills physics. The instrument of this research is questions to measure higher order thinking skills in the form of essay questions. Validity analysis is carried out by proving the validity of the content and criteria. The validity analysis results were 0.44 in the valid category and the reliability results were 0.70 in the high category. The research results show that the instrument has met the appropriate and valid criteria for measuring students' higher order thinking skills.
Effect of Additional Training and Activities on Science Teacher Modification Skills Widia; Widodo, Ari; Kaniawati, Ida
Jurnal Penelitian Pendidikan IPA Vol 11 No 2 (2025): February
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i2.5360

Abstract

This study aims to answer research questions about: (a) Does the number of training sessions attended affect the modification skills of science teachers? and (b) Do additional activities affect the modification skills of science teachers? The study uses a qualitative method with a sequential explanatory approach using questionnaires and interviews as instruments. The subjects of this research are 12 elementary and junior high school science teachers who are members of subject teachers' deliberation groups. The results show that the teachers' ability to modify learning designs involving students is influenced by the number of training sessions and additional activities. The data indicates that the more teachers attend training sessions, the better they are at modifying learning materials involving students, meaning that training has a positive effect on improving the modification skills of science teachers. Conversely, the more additional activities teachers engage in, the lower their ability to modify learning materials involving students, indicating that excessive additional activities have a negative impact on the modification skills of science teachers.
Student's Physics Achievement in Problem-based Learning: A Quantitative Study Sundari, Putri Dwi; Sari, Wulan; Hufri; Sari, Silvi Yulia
Jurnal Penelitian Pendidikan IPA Vol 11 No 2 (2025): February
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i2.6267

Abstract

Low physics learning outcomes are still a problem in physics learning. Teachers need to think about what strategies could improve student learning outcomes. One of the learning models that could be used is the problem-based learning model. This study aims to describe the differences in learning outcomes of students in the application of problem-based learning models compared to the scientific approach at SMA Negeri 3 Padang. The type of research conducted was a quasi-experiment using the Randomized Posttest Only Control Group Design. The research instrument was a learning outcome test in the form of multiple-choice questions. The data analysis technique used is the Lilliefors test, F-test, and t-test with a significance of 0.05. Based on data analysis, it is obtained that the average physics learning outcomes of student in the knowledge aspect of the experimental class is 82, which is better than the control class, 71. Hypothesis testing showed that tcount> ttable is 3.589> 1.667, which means H1 is accepted and H0 is rejected.  It can be concluded that the implementation of the problem-based learning model has a significant effect on the physics learning outcomes of students in class X Phase E SMA Negeri 3 Padang.
The Development of an Ethnoscience-Based Science Module at Eucalyptus Oil Refining in Buru Regency to Reduce Student Misconceptions Hardiansyah, Muhammad Rizal; Darwis, Rahmiati; Hikmah, Nur
Jurnal Penelitian Pendidikan IPA Vol 11 No 2 (2025): February
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i2.6439

Abstract

This research is based on the limited learning resources that students can use independently. This research aims to develop an ethnoscience-based science module on the process of refining eucalyptus oil to determine the feasibility, practicality, and effectiveness of the module in reducing student misconceptions. The method used was research and development R&D. The research data obtained was analyzed using percentage descriptions. The results of the science module feasibility test showed that the feasibility of the material obtained a score of 88% with very feasible criteria. The feasibility of the media obtained a score of 89% with very feasible criteria. Furthermore, the feasibility of language obtained a score of 80% with appropriate criteria. The practicality of the module was tested through analysis of student responses to the module developed and a practicality score of 87% was obtained with very good criteria. This means that the ethnoscience-based science module developed has very good practicality in terms of a) attractiveness of the module, b) ease of use, c) ease of understanding the contents of the module, d) completeness of the contents of the module, and e) conformity with character values ethnoscience. According to the results of the analysis of learning outcomes tests accompanied by the Certainty of Response Index, it shows that the level of student misconceptions has decreased by 34% accompanied by an increase in the level of student understanding of concepts by 37%, and students who do not understand concepts have decreased by 3%. This shows that the module developed is effective in reducing student misconceptions
Embung Bandung Bondowoso Tourism Sustainability Strategy in Sidobandung Village, Balen District, Bojonegoro Regency Setyandhinavia, Amilis; Kartikaningsih, Hartati; Wahyudi, Setyo Tri
Jurnal Penelitian Pendidikan IPA Vol 11 No 2 (2025): February
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i2.6726

Abstract

Embung Bandung Bondowoso Tourism offers water tourism which originates from the Pacal River, Bojonegoro Regency. The choice for developing Embung Bandung Bondowoso tourism is because it is to utilize the embung which has been owned since 2020. Even though Bandung Bondowoso tourism has been open since February 1st 2022 and is currently still in the development process. The development of tourist villages is also a form of accelerating integrated village development to encourage social, cultural and economic transformation of villages. This research uses quantitative research methods. In this research, this was done by filling out a Multidimensional Scaling questionnaire and then analyzing the quantitative data obtained to answer the problem formulation regarding the sustainability status of the research location. The resulting index value shows that the 5 dimensions (ecological, social, economic, institutional and technological) of Embung Bandung Bondowoso Tourism already have very good sustainability status. The sensitive attributes that most influence sustainability and need to be considered are green open spaces, condition and availability of clean water, landslides, erosion and damage to water resources, conflicts of interest between residents, level of education, development of local products, community service providers and ease of reaching the location.
Effectiveness of Acemannan Hydrogel Administration at Concentrations of 25%, 50%, 75% Against Decrease in the Number of Macrophages in Periodontitis Rats with Diabetes Mellitus Susanto, Chandra; Halim, Susanna; Rusip, Gusbakti; Aurelia, Nada
Jurnal Penelitian Pendidikan IPA Vol 10 No 4 (2024): April
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i4.7077

Abstract

Acemannan activity as a natural polysaccharide from Aloevera has good biodegradability and biocompatibility and has an effect on cell tissue repair. The study's objective was to ascertain whether giving Hydrogel Acemannan at concentrations of 25%, 50%, and 75% would be beneficial in lowering the quantity of macrophages in diabetic periodontitis mice . 48 white Wistar rats were used as research samples, and they were split into four groups at two different observation intervals (days 3 and 7).One-way ANOVA and posthoc LSD statistical tests were used to assess the data. The number of macrophages in each group decreased on day 7 to 3.50 ± 0.354; 2.79±0.431; 1.54 ± 0.292; 0.54 ± 0.292. The results of the one-way ANOVAX test (p≤0.05) showed that the Hydrogel Acemannan concentrations of 25%, 50%, and 75% were effective in reducing the number of macrophages in periodontitis mice with diabetes mellitus. The results of the LSD posthoc test showed that Hydrogel Acemannan concentrations of 25%, 50%, and 75% were substantially more effective than the positive control in reducing the number of macrophages in periodontal mice with diabetes mellitus (p≤0.05).
The Pengaruh Model Pembelajaran Berbasis Masalah dan Sikap pada Fisika terhadap Kemampuan Pemecahan Masalah Fisika Peserta Didik Sadiah, Riskha Lestari; Ali, Muh. Sidin; Khaeruddin
Jurnal Penelitian Pendidikan IPA Vol 11 No 2 (2025): February
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i2.7277

Abstract

One of the student's abilities that needs to be improved in learning is problem-solving ability. However, in reality, students' problem-solving abilities are still relatively low, especially in physics subjects. This study aims to analyze the effect of learning models and attitude in physics on the problem solving. This research is a true experiment with a 2x2 factorial design. The population is all class X SMA Negeri 7 Luwu Utara years 2022/2023. The sample of two classes using simple random sampling techniques. Methods of data collection using attitude questionnaire on physics and physics problem-solving skill tests. Data analysis using two-way ANOVA The results showed that: There were differences in the physics problem-solving skills of students who were taught using problem-based learning models and those who were taught using discovery learning models, for attitudes to high physics, there were differences in problem-solving skills physics taught using problem-based learning models with those taught using discovery learning models, for low physics attitudes, there are differences in the physics problem-solving skills of students who are taught using problem-based learning models with those taught using discovery learning models, and there is no interaction between the learning model and attitudes toward physics on students' physics problem-solving skills.

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