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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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Numerical Solution of Radioactive Core Decay Activity Rate of Actinium Series Using Matrix Algebra Method Anita Puji Pratiwi; Trapsilo Prihandono; Sri Handono Budi Prastowo
Jurnal Penelitian Pendidikan IPA Vol. 7 No. 3 (2021): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v7i3.716

Abstract

The Actinium 235 series is one of the radioactive series which is widely used as a raw material for reactors and nuclear activities. The existence of this series is found in several countries such as West USA, Canada, Australia, South Africa, Russia, and Zaire. The purpose of this study was to determine the activity value and the number of radioactive nucleus decay atoms on the actinium 235 rendered in a very long decay time of 4.3 x 109 years. The decay count in this study uses an algebraic matrix method to simplify the chain decay solution, which generally uses the concept of differential equations. The solution using this method can be computationally simulated using the Matlab program. This study indicates that the value of the decay activity experienced by each element in this series is the same, which is equal to 2,636 x 1011 Bq. This condition causes the actinium 235 series to experience secular equilibrium because the half-life of the parent nuclide is greater than the nuclide derivatives. The decay activity of the radioactive nucleus under the actinium 235 series is strongly influenced by the half-life of the nuclides, the decay constants, and the number of atoms after decay
The Effect of Search, Solve, Create and Share Learning Models to Improve Students 'Critical Thinking Skills on Acid and Basic Titration Materials Siti Nur Arisa; Ibnu Khaldun; Safrida Safrida
Jurnal Penelitian Pendidikan IPA Vol. 7 No. 2 (2021): April
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v7i2.625

Abstract

This study aims to determine the improvement of students 'critical thinking skills in the acid-base titration material and to know the description of students' responses to learning to search, solve, create, and share. This study used an experimental method, comparing the experimental group with the control group through the pretest-posttest design, carried out at MAN 1 Aceh Barat. The sample selection used purposive sampling technique. The study population was class XI-IPA for the 2019/2020 school year and the samples were class XI-IPA2 (experimental group) and XI-IPA6 (control group). Data collection was carried out by giving a pretest and posttest to determine the increase in critical thinking skills. The results showed that the experimental group had an increase in the critical thinking component focusing on indicator questions with an average N-gain percentage of 74.58% in the high category, while other critical thinking components experienced an increase in the moderate category. Based on the t test, the posttest value of the experimental and control groups has a significant difference with tcount 2.107> ttable 2.093. This difference is influenced by the search, solve, create, and share model of the acid-base titration material in the experimental group. Students gave positive responses to learning to search, solve, create, and share with a percentage of 81.7% with the interested category. So, it is concluded that learning the search, solve, create, and share model can improve students' critical thinking skills on acid-base titration material
Development of e-Student Worksheets Based on Multiple Representations of Factors Affecting Reaction Rates Farah Meutia; Nurdin Nurdin; Sri Winarni
Jurnal Penelitian Pendidikan IPA Vol. 7 No. 2 (2021): April
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v7i2.533

Abstract

The research had been carried out to develop the e-student worksheet (e-SW) based on multiple representational learning models on the material factors which affect the rate of reaction to determine its effectiveness in understanding the concepts and activities of students, as well as the teacher’s and the student’s responses towards e-worksheet application. The research method and development (R&D) of the Analysis, Design, Development, Implementation, and Evaluation (ADDIE) model were used for the development of e-SW. The research samples used were the students of class XI MIPA 1, and the chemistry teachers of class XI of senior high school 3 Banda Aceh, then the determination of the sample for implementation was carried out using random sampling techniques. Based on the results of the study, it can be concluded that an e-worksheet based on the developed multiple representation learning models on the factors which affect the reaction rate fulfilled the very feasible criteria with the acquisition of validity and reliability of 0.85 and 85. Complete understanding of the concepts and activities of students using e-worksheet was splendid, namely 84.8 and 85%. The response of students and teachers to the development of e-worksheet based on the multiple representation learning models was also splendid
Analysis of The Students’ Argumentative Skills of Senior High School in Covid-19 Pandemic using Problem Based Learning in Static Fluid Wahdania Eka Putri; Widha Sunarno; Ahmad Marzuki
Jurnal Penelitian Pendidikan IPA Vol. 7 No. 3 (2021): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v7i3.735

Abstract

This study aims to describe and analyze the students' argumentative skills in the subject of static fluid using the PBL model with the experimental method, after the lesson is given to students. This type of research is descriptive research.The subjects of this study are 34 students of XI MIPA 2 class of SMAN 1 Tanggul. The sampling technique used in this study was simple random sampling. The data was collected by using an essay question consisting of 8 questions which have been adjusted to the indicators of argumentation ability which include; argument evidence, counter argument evidence, refutation evidence, argument justification, counter argument justification, and rebuttal justification. The data analysis of this research used a descriptive approach by calculating the score. The results showed that the average argument evidence indicator is 1.5 with the high category, the counter argument evidence is 1.5 with the high category, the refutable evidence is 1,4 with the high category, the argument justification is 2.1 with the high category, the justification the counter argument is 2.1 with the high category, and the rebuttal justification is 2.1 with the high category. Based on the research that has been done, it can be concluded that the students' argumentative skills on each measured indicator are high
Analysis of the Nature of Science in Elementary School Science Curriculum and Its Empowerment in Student Book Devi Septiani Putri; Lungguh Puri Pramswari; Sabila Idzni Suryana; Ari Widodo
Jurnal Penelitian Pendidikan IPA Vol. 7 No. 3 (2021): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v7i3.763

Abstract

The nature of Science or NOS is the knowledge that explains how science works and how scientists conduct research. The nature of science has aspects in the form of form and nature, namely aspects of the product, scientific attitude, process, subjective, tentative, empirical, Theory and Law, Social and Culture, Creativity, Scientific Method. It is important to convey aspects of the nature of science into the science curriculum and student books because they are a reference in the learning process so that learning objectives can be achieved properly. Submission of aspects of the nature of good science is to convey it correctly and explicitly. Based on the analysis and comparison results, it shows that aspects of the nature of science in the elementary school curriculum and its embodiment in student books are not explained explicitly, both in the curriculum and in student books. The results of the percentage value of the essence of science in the student curriculum have a value of > 80%, namely product, subjective, creative aspects, and in the student's book, only product aspects have a percentage value of > 80%. Meanwhile, other aspects have a low percentage value of <80%.
Physics Model for Rope Jumping Game Fathan Akbar; Ardi Khalifah; Mikrajuddin Abdullah
Jurnal Penelitian Pendidikan IPA Vol. 7 No. 2 (2021): April
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v7i2.559

Abstract

We developed a simple physics model to explain the profile of the rope played in the rope jumping game.  Firstly, we derived a second order non-linear differential equation to explain the rope motion. Analytical solutions can be obtained if the displacement of all points along the rope is small. For arbitrary deviations, a numerical solution must be employed, and at the present paper, we used a simple excel-visual basic program. We found that the profiles of the simulation results is very similar to the real profile which can be observed in a number of sources on the internet. A critical value separating the condition where the rope length remains unchange and the condition when the rope changes suddenly with rw2/T was identified. A scaling relationship was also identified in the changing region with the critical exponent of -0.31. The existence of the critical point and the critical exponent in the changing region informs that the change in the rope profile resembles the phase transition phenomenon
The Effect of Student Worksheets Through the Edmodo Network on Concept Understanding and Independent Learning on Hydrocarbon Materials Khairini Khairini; Ibnu Khaldun; Andi Ulfa Tenri Pada
Jurnal Penelitian Pendidikan IPA Vol. 7 No. 3 (2021): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v7i3.701

Abstract

This study aims to determine the effect of student worksheets through the Edmodo network on understanding concepts and learning independence on hydrocarbon material. The research method used is an experiment with a quantitative approach. The research design used was a pretest-posttest control group design. The population of this study was students of class XI SMAN 5 Banda Aceh with data collection techniques by random sampling to obtain two classes that became the research sample. The research instruments used were reasoned test questions and questionnaires. Based on the results of the t-test analysis of conceptual understanding with a significant score of 0.015 <0.05, it shows that there is a significant difference between the control class and the experimental class. The results of the t-test of students' learning independence showed that the significant score was 0.000 <0.05, which means that the data had a significant difference between the control and experimental classes. The conclusion in this study is that student worksheets through the Edmodo network can affect students' understanding of concepts and learning independence. This research concludes that using student worksheets through the Edmodo network in chemistry learning is more effective in increasing understanding of concepts and students' learning independence for the better
Thermal Pyrolysis of Used Lubricant and Cooking Oil Mixtures Nazarudin Nazarudin; S.P. Amalia; Afrida Afrida; Ulyarti Ulyarti
Jurnal Penelitian Pendidikan IPA Vol. 7 No. 2 (2021): April
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v7i2.645

Abstract

Pyrolysis is the one solution to recycle hydrocarbon-based waste material such as used lubricant and cooking oil. The aim of this research was to determine the effect of temperature and sample ratio on the liquid yields of a mixture of used lubricant and cooking oil. The semi batch reactor was used with a constant nitrogen flow rate of 5 mL/min. Three different ratios of sample mixture were applied in this experiment: 0.5:1, 1:1, and 1.5:1, and three different temperatures: 4000C, 4500C, and 5000C. The thermal pyrolysis of a mixture of used lubricant and cooking oil was deemed as the most effective pyrolysis to produce liquid fraction was obtained from reaction condition with the sample mixture ratio of 0.5:1 at 5000C. At this reaction condition, the liquid yield was 58.90% which consist of 64.12% were C1-C3 and 29.54% were C5-C15.  Liquid fraction is predicted to increase as the temperature increase and the ratio of used lubricant to cooking oil decrease. When the ratio is increased , more gas fraction is produced.
Analysis of the Impact of Smartphone Use on Adolescent Social Interactions During COVID-19 Mellania Indrasvari; Risma Delima Harahap; Dahrul Aman Harahap
Jurnal Penelitian Pendidikan IPA Vol. 7 No. 2 (2021): April
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v7i2.622

Abstract

This study is titled Analysis of Smartphone Use against Adolescent Social Interactions During COVID-19. This research is motivated by the increasingly popular use of smartphones among generation Z that can influence social interactions especially the outbreak of the Covid-19 virus that urged students to study at home or online by using smartphones and keeping activities out of the house in order to avoid the Covid-19 virus and break the chain of the virus that causes constrained social interaction activities outside the home, especially the students of grade XII science 1 and XII science 2 at Senior High School 2 Rantau Selatan (State Senior High School 2, South Rantau) (State Senior High School 2, South Rantau) using qualitative-descriptive research that considered suitable for the problem of the impact of smartphone use on adolescent social interactions during the Covid-19 period where the main data sources in this study are students. The tools used to collect data are questionnaires, interviews, observations and documentation. Sampling technique used is purposive sampling. The sample data from this study were students of grade XII science 1 & XII science 2 with a total of 64 people. The results of the interview research and supported by the questionnaire showed that the use of smartphones in students in grade XII science 1 and XII science 2 Senior High School 2 Rantau Selatan (State Senior High School 2, South Rantau) (State Senior High School 2, South Rantau) was at 51.02%, then about 33.84% intensity of social media to eliminate saturation only activities in the house alone that resulted in a lack of intensity or association of teenagers with people around the next student doing activities gathered with friends categorized as small enough only 5.08% is also caused by the government's rules to stay at home and 10.06% of students feel the effects of smartphones. The conclusion of this study shows that there are positive and negative impacts of smartphones on adolescent social interactions during Covid-19
Development of Physics Learning Tools Model Discovery Learning on Momentum and Impulse Material Isni Sahrianti; Muhammad Taufik; I Wayan Gunada; Aris Doyan
Jurnal Penelitian Pendidikan IPA Vol. 7 No. 3 (2021): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v7i3.580

Abstract

This study aims to produce a product in the form of a learning device with a model discovery learning on momentum and impulse material. This type of research used in this study is a research and development with a research model that was developed is the model 4D comprising the steps of define, the design, development, and Disseminate. Development is carried out until the limited trial stage by conducting validation trials up to the development stage and no distribution is carried out. The tools developed were syllabus, lesson plan, student worksheet, and test instruments on momentum and impulse materials. The results of the research are based on the data obtained and the results of the data analysis show that the results of the development of learning tools have a fairly valid value, this indicates that the physics learning tools using model’s discovery learning on momentum and impulse materials are feasible to used.

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