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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 5,869 Documents
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PENGEMBANGAN PERANGKAT PENILAIAN KINERJA (PERFORMANCE ASSESSMENT) BERBASIS KURIKULUM 2013 PADA PEMBELAJARAN KIMIA KELAS XI Diartha -; Wildan -; Muntari -
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.v3i2.91

Abstract

This development research aimed to produce performance assessment instrument on chemistry learning for XI grade, descibe for characteristics, and validity tests. This research development used Dick and Carey’s model. The products consists of acid-base proved into worksheet, evaluation of indicators, direction of usage, sheet of observation, rubric of assessment, assessment of conversion, and value of recapitulation. Validation’s data of Aiken were 0,60 for unit one, unit two for 0,60, and 0,66 for unite three means valid. The data of experiment were 84% for suitability, 87% for simplicity, and 84% for usefullness. Application’ data for suitability, simplicity, and usefullness were 84%, 86%, and 84% respectively. Upper validity correlation table within 5% of significant level and reability inter-raters were 0,76 for unit one and 0,75 for unit two. Application of assessment’s instrument were positively responded by students. Therefore, instrument of assessment in 2013 curriculum-based stated applicable to be implemented in learning process.Keywords: Performance assessment-instrument, Applicable, Chemistry  learning
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
SINTESIS BAHAN M-HEXAFERRITES DENGAN DOPING LOGAM Co MENGGUNAKAN METODE KOPRESIPITASI Khaerunnisa Khaerunnisa; Susilawati Susilawati; Lalu Rudyat Telly Savalas; Muhammad Taufik; Wahyudi Wahyudi
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.v4i1.112

Abstract

Has successfully carried out the synthesis of M-hexferrites with doping metal Co. using coprecipitation method in which the basic material used in this study is BaCO3, FeCl3.6H2O, and CoCl2 (Pa) in the form of powder with a purity of 99.99% by mole fraction 0, 0 , 2, 0.5, 0.8 and 1. BaCO3 dissolved in HCl with 0.1 N. The process of dissolving BaCO3 using a hot plate and stirred using a magnetic stirrer until the temperature reaches 70°C for 2 hours, to prepare a solution and dissolve Iron CoCl2.6H2O (III) Chloride Hexahydrate FeCl3.6H2O, then a third mixing a solution of BaCO3, CoCl2.6H2O and Iron (III) Chloride Hexahydrate FeCl3.6H2O it in a beaker and stirred using a magnetic stirrer to form a homogeneous solution (brownish black color) and then adding a solution NH4OH precipitating the burette so that the precipitate obtained with high homogeneity. The samples were cooled and washed with distilled water, filtered with filter paper until pH neutral (pH = 7), the material is dried precipitated by using an oven temperature of 80°C. Furthermore, the process of grinding in order to obtain a brownish powder and calcined at varying temperatures of 400, 600 and 800ºC for 4 hours.Keywords: Barium M-heksaferit, cobalt, coprecipitation
PENGEMBANGAN BAHAN AJAR KIMIA BERBASIS PROBLEM BASED LEARNING UNTUK MENINGKATKAN KETERAMPILAN METAKOGNISI Nishfiya Ramdoniati; Muntari Muntari; Saprizal Hadisaputra
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.v5i1.148

Abstract

This study aims to development of chemical learning material based PBL to improve metacognition skills of students on the material of electrolyte and nonelectrolyte solutions. The type of research used is Research and Development (R & D) with the modification of 4D model into 3D which consists of define, design and develop. The results showed that the average score of the feasibility of learning materials of 3.18 with medium category, The average score of teacher response and the response of learners is 3.58 with the practical category. The effectiveness data of learning materilas based PBL was obtained from N-Gain metacognition skill score of 0.51 in the medium category, meaning that chemical learning materials based PBL is effective to improve metacognition skills on the topic of electrolyte and nonelectrolyte solutions. Keyword: Chemical learning material, problem based learning, metacognitive skills.
PROFIL LITERASI SAINS DAN KETERAMPILAN BERPIKIR KRITIS PENDIDIK IPA SMP Jamaluddin Jamaluddin; A. Wahab Jufri; Agus Ramdani; Afriana Azizah
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.v5i1.185

Abstract

Secondary school science educators need to have good scientific literacy and critical thinking skills, so that they have sufficient competency to teach students to be able to compete in the current and future information and globalization. The purpose of this research was to determine the profile of scientific literacy and critical thinking skills of science educators. The subjects of this study were secondary school science educators who were still actively carrying out their professional duties. This study uses descriptive research methods.  The instrument of data collection consists of scientific literacy instruments and instruments of critical thinking skills. The results of the study show that the science literacy profile of science educators is on average categorized as sufficient. The profile of the science literacy skills of junior high school educators is categorized as 33.33% in the good group, 16.67% in the sufficient category, and 50% in the less category. Profile of the average critical thinking skills of science educators in the medium category. Science educators who have high critical thinking skills are 32%, those with moderate critical thinking skills are 32%, and those who have low critical thinking skills are 36%.Keywords: Literacy Science, Critical Thinking, Science Educators.
Pengembangan Bahan Ajar IPA Berbasis Inkuiri Terbimbing untuk Meningkatkan Literasi Sains Baiq Sri Komalasari; A Wahab Jufri; Didik Santoso
Jurnal Penelitian Pendidikan IPA Vol. 5 No. 2 (2019): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v5i2.279

Abstract

Abstract: The purpose of this study is to produce a product in the form of science teaching materials that can improve the scientific literacy of students. This research is included in research and development of education which is a method for producing certain products and testing the effectiveness of these products. The product developed was validated by experts consisting of 3 people. Learning tools that are validated are syllabus, lesson plans, and scientific literacy instruments. The results of the study show that the learning device in the form of syllabus shows an average of 3.9 (78%) in the appropriate category, the Learning Implementation Plan (RPP) shows an average of 3.9 (78%) in the feasible category, and the items show the average value is 4.1 (82%) in the feasible category. Thus, inquiry-based science teaching materials developed in appropriate categories can be applied in learning. The results of the questionnaire response analysis of students showed that students' responses were very good for teaching materials because 77.8% of students were fluent that guided inquiry-based teaching material was interesting. In a large-scale trial, the N-gain value obtained in the experimental class was 70.74 with high criteria. Keywords: Science Teaching Materials; Guided Inquiry; Science Literacy
PENGEMBANGAN ALAT PERAGA LISTRIK DINAMIS (APLD) BERBASIS INKUIRI UNTUK MENINGKATKAN PENGUASAAN KONSEP SISWA Muhammad Azhari Hasbi; Kosim -; Gunawan -
Jurnal Penelitian Pendidikan IPA Vol. 1 No. 1 (2015): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v1i1.6

Abstract

In this study has been developed a teaching aid of dynamic electricity(APLD) inquiry based to support dynamic electricity of learning. This study included research development. The purpose of this study was to develop and test the effectiveness of the teaching aid to increase mastery of concepts of students. The study involved IX grade of junior students who were following the dynamic electricity of learning were divided into two groups, namely the experimental group and the control group. The instrument used was the dynamic electric concept mastery test. Analysis of data using different test and the average normalized gain scores . This study showed an increase in mastery of concepts in both groups. The Increase concepts mastery of students using APLDinquiry-based was higher than students who studied the electrical KIT with verification based-guide. The increase was highest in the mastery of concept Ohm's Law (69.3 %) and the lowest was in the electric power concept (10.8 %) Keyword: Teaching aid of dynamic electricity (APLD) inquiry based, mastery of concepts dynamic electricity.
PERTUMBUHAN KALUS DAUN MELON (Cucumis melo) VARIETAS MAI 119 DENGAN PEMBERIAN BAP (BENZYL AMINO PURINE) DAN 2,4-D (2,4 DICHLOROPHENOXYACETIC ACID) Toharah, Nining Intan; Jekti, Dwi Soelistya Dyah; Zulkifli, Lalu
Jurnal Penelitian Pendidikan IPA Vol. 1 No. 2 (2015): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v1i2.17

Abstract

This study aims to determine the concentration of growth regulators BAP and   2,4-D which have the highest effect in stimulating the formation of callus melon plants (Cucumis melo) Mai 119 variety. Completely randomized design (CRD) was used in this research. Media used on callus induction was MS medium with addition of several concentration of BAP  (0 mg/L, 1 mg/L, 2 mg/L, 3 mg/L) and 2,4-D (0 mg/L, 1 mg/L, 2 mg/L, 3 mg/L) either alone or in a combination of both. Parameters measured were the time appearing of callus, callus diameter, callus texture, and callus color. Anova followed by Tukey's test was used to the analyse of time appearing of callus. Data of callus diameter was analyzed using Kruskal Wallis test followed by Mann-Whitney test. In the analysis of parameter related to the callus texture and callus color, descriptive test were used. The results showed that there were differences in the effect of growth regulators on the callus formation. The fastest callus induction and the largest diameter of callus were obtained on media with concentration of 2 mg/L BAP and 3 mg/L BAP.Keywords: BAP (benzyl amino purine), 2,4-D (2,4-dichlorophenoxyacetic acid), callus induction, melon (Cucumis melo) varieties Mai 119
Approach to Representation of CRI Integrated Mathematics and Verbal (R-MV) to Analyze Misconception of Momentum and Impuls Materials I Ketut Mahardika; Zulfi Anggraini; Aris Doyan; I Wayan Sugiartana
Jurnal Penelitian Pendidikan IPA Vol. 6 No. 2 (2020): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v6i2.437

Abstract

Misconception is a misconception that refers to a concept that is not in accordance with scientific understanding or understanding received by experts in that field. This study aims to identify students' misconceptions in solving momentum and impulse problems through the R-MV approach (mathematical representation and verbal representation) integrated CRI (Certainly of Response Index). This research included in the type of qualitative descriptive analysis research. The subject of the research was tenth-grade students of Jember Regency Senior High School. Data collection techniques in this research use method of observation, tests, and interviews. The data analysis technique used was the mathematical representation approach integrated CRI. Based on the results of the research that has been done, the students' misconceptions percentage in Jember Senior High School of science tenth grade on material momentum and impulse through mathematical representation approach integrated CRI of 20.07% and through verbal representation approach integrated CRI of 32.94%. This is included in the category (Almost Very Confident) for mathematical representation and (Sure) for verbal representation, meaning the value that students get as truthful based on understanding material with correct
PENGARUH MODEL PEMBELAJARAN BERBASIS MASALAH (PBM) DALAM SETTING PEMBELAJARAN KOOPERATIF TIPE TGT DAN GI TERHADAP KETERAMPILAN BERPIKIR KRITIS DAN HASIL BELAJAR KIMIA PESERTA DIDIK SMAN 1 AIKMEL Baiq Ismayawati; Agus Abhi Purwoko; Muntari -
Jurnal Penelitian Pendidikan IPA Vol. 2 No. 1 (2016): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v2i1.33

Abstract

This study aims to describe the differences in critical thinking skills and chemistry learning achievement between learners who follow the model of problem-based learning (PBL) in cooperative learning settings TGT and GI at the rate of material reaction. The research is a quasi-experimental research design with pretest-posttest non equivalent control group designe with sample XI IPA 1 and XI IPA 2 are determined by random selection technique based on similarity mean value of daily tests I. Experiential learning and learner response is estimated to affect more significant learning achievement in the classroom PBM setting GI as evidenced by the average N-Gain learning outcomes in the classroom PBM setting GI of 0.43 and the average N-Gain learning achievement in the classroom PBM setting TGT of 0.32. The differences are also evidenced by the results of the hypothesis test showed a significance value of 0.002 (p <0.05). While based on the calculation of the average critical thinking skills in mind that PBM setting TGT has a more significant effect than the PBM GI settings as evidenced by the difference in the value of critical thinking skills after learning process (posttest) and prior to the learning process (pretest) on PBM classroom setting TGT and PBM GI settings are respectively 19.93 and 14.42. While the test is based on differences in critical thinking skills, it is known that there are differences between classes of critical thinking skills PBM settings TGT and PBM settings GI as evidenced by the significant value of 0.018 (p <0.05).Keywords: PBM setting TGT, PBM setting GI, critical thinking skills, learning achievement of chemistry.

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