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Jurnal Penelitian Pendidikan IPA (JPPIPA)
Published by Universitas Mataram
ISSN : 24602582     EISSN : 2407795X     DOI : -
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 104 Documents
SIFAT PENYERAPAN BUNYI PADA KOMPOSIT SERAT BATANG PISANG (SBP) – POLYESTER Khotimah, Khusnul; -, Susilawati; Soeprianto, Harry
Jurnal Penelitian Pendidikan IPA Vol 1, No 1 (2015): January
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v1i1.9

Abstract

This research conducted to find the physical properties of the absorption of sound from banana stem fiber (Serat Batang Pisang/SBP) with polyesters’ matrix. The sound absorbent material made with a variety of different volume fraction composition. The comparison between the SBP and the volume fraction of the polyester is made of 30%: 70%, 40%: 60% and 50%: 50%. The method of research was done in three stages: making banana stem fiber, manufacturing composite and testing of composite SBP. Composite testing includes physical properties (sound absorption). Preparation of the samples started by taking a banana stem, decomposition banana stem fiber, alkali treatment with NaOH 4%, then mixing the SBP with the matrix  polyester. Manufactured the composites by press the materials on the molding for 12 hours, then tested to find physical properties. Sound absorption test performed using a signal generator and a sound level meter with the principle of the impedance tube method through acoustic box approach as a reference. The results of the study showed that SBP with polyester composite capable to absorb the sound with sound absorption coefficient α = 0.84 at 50% fiber volume fraction. Thus SBP composites can absorb sound for low and medium frequency, based on the standard ISO 11654:1997 (E) where the minimum of sound absorption coefficient of acoustic materials is α = 0.15. Keywords: Composite, banana stem fiber, sound absorber materials, polyester.
Pengembangan Soft Skills Siswa Melalui Penerapan Culturally Responsive Transformative Teaching (CRTT) dalam Pembelajaran Kimia Rahmawati, Yuli; Ridwan, Achmad; Faustine, Sylvia; Mawarni, Pramita Cucu
Jurnal Penelitian Pendidikan IPA Vol 6, No 1 (2020): January
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v6i1.317

Abstract

This study aimed is to develop students’ soft skills through the implementation of the Culturally Responsive Transformative Teaching (CRTT) in chemistry learning. Indonesia's ethnic and cultural diversity is a challenge for teachers to design the chemistry lessons which is relevant with students’ characteristics. The research methodology applied is qualitative and applied on chemistry learning in the topics of acid and base, electrolyte and non electrolyte solution in five stages: self identification, cultural understanding, collaboration, critical reflections, and transformative construction. This research was conducted in two schools in DKI Jakarta and West Java in 2018. The data was collected by interview, reflective journal, and observations. The results showed that the chemistry learning through CRTT model can develop students' soft skills such as collaboration skills, critical thinking skills, nationality, social and cultural awareness, leadership, environmental caring, and curiosity. The teachers’ interview and reflections showed that the challenges in applying this approach were creativity in integrating cultural concepts in chemistry learning, students' understanding, time constraints, and the paradigm of students and teachers. Integration of ethnochemistry in CRTT can be developed in other chemical concepts with the principle of students’ character development
Validity of Assessment Attitude and Values System Based on Indonesian National Qualification Framework on Process Evaluation and Biological Learning Outcomes Nerita, Siska; Maizeli, Annika; Afza, Aulia
Jurnal Penelitian Pendidikan IPA Vol 6, No 2 (2020): July
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v6i2.439

Abstract

In the subject of the Evaluation of Process and Outcome of Biological Learning (EPOBL), carried out by applying guided discovery methods and the use of handout based on guided discovery. Problems found in the lecture process are pre-existing assessments that are not in accordance with the lecture process with guided discovery methods that use handouts based on guided discovery. The purpose of this study is to produce an assessment based on the Indonesian National Qualifications Framework that valid in the EPOBL subject. This research is a development research using the Plomp model. The instrument used is a questionnaire validity assessment of attitude and values system. The data analysis technique uses the percentage formula. The results of the study showed that the value of the attitude and values system assessment was 95.83% with very valid criteria. It can be concluded that the assessment of attitudes and values system based on the Indonesian National Qualifications Framework in Process evaluation and biology learning outcomes is very valid
SINTESIS BARIUM M-HEXAFERRITTE (BaFe12-xNixO19) DOPING LOGAM NIKEL DENGAN METODE KOPRESIPITASI -, Munib; -, Susilawati; Savalas, Lalu Rudyat Telly
Jurnal Penelitian Pendidikan IPA Vol 2, No 1 (2016): January
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v2i1.28

Abstract

Synthesis of Barium M-Hexaferrite (BaFe12-xNixO19) nickel metal doping have been done with co-precipitation method and its effect on temperature changes and substitution dopants. Basic materials used in the synthesis of BaCO3, FeCl3.6H2O, HCl, NH4OH and nickel metal. The process of synthesis of barium M-heksaferit conducted at the Faculty of Mathematics and Natural Sciences Analytical Laboratories Unram. This study used a variation of calcination temperature of 80, 400, 600 and 800°C for 4 hours with a variety of dopants 0; 0.4; 0.7 and 0.9. Synthesis results show that changes in the concentration of the dopant variables and calcination temperature indicate a tendency to change color to brown-black powder.Abstract: Barium Mhexaferrite, dopant, nickel, co-precipitation.
PENGUKURAN e/m elektron MENGGUNAKAN TABUNG TELEVISI (TV) DAN KUMPARAN HELMHOLTZ Patty, Elyakim N. S.; Waluyo, Endiyas; Jacobus, Liefson
Jurnal Penelitian Pendidikan IPA Vol 1, No 1 (2015): January
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v1i1.12

Abstract

The purpose of this research is to determine the comparison value between e/m of electrons in the use of CRO television tube and use to examine the quality of the experimental method that was is by comparing the experimental method from J. J. Thomson. This research regarded as an experimental method, conducted by measuring the different of light points on the screen television tube to get the radius of electron motion. The data interpreted into a graph to a quaeter radius of current on the coil magnetic field Helmohltz I (amperes). This graph is used to find e/m value of electron and the result is:
Problematika Pemanfaatan Media Pembelajaran IPA di Sekolah Dasar Wahyu, Yuliana; Edu, Ambros Leonangung; Nardi, Mikael
Jurnal Penelitian Pendidikan IPA Vol 6, No 1 (2020): January
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v6i1.344

Abstract

This study aims to describe the availability and use of science learning media in class 6th of Catholic private elementary schools at Langke Rembong District. This research method is in the form of a survey that focuses on two things, namely the availability and use of science learning media. The study was conducted to all the science teachers in class 6th totaling 46 teachers as a population, then the data were only taken from 23 teachers as a sample selected purposively. Instruments used were questionnaires, checklists, interviews, and documentation. The results showed that the availability of science learning media in those schools were sufficient. However, many media were in damaged conditions. Those happened because they were stored, not used. Most teachers were not trained to use that media and had no initiative to solve the problem. Therefore, in terms of utilization, only good media is utilized to its full potential.
Analisis Kemampuan Literasi Sains Siswa SMP pada Materi Sirkulasi Darah Hasasiyah, Siti Hardiyanti; Hutomo, Bagus Addin; Subali, Bambang; Marwoto, Putut
Jurnal Penelitian Pendidikan IPA Vol 6, No 1 (2020): January
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v6i1.193

Abstract

Science literacy is the ability to use scientific knowledge to identify questions, explain scientific phenomena that occur using contextual facts. The circulation theme is one of the themes of contextual learning that is very closely related to everyday life. This study aims to determine the scientific literacy skills of students in blood circulation material at the junior high school level. The research method used was descriptive qualitative with scientific literacy instruments in the form of tests with research subjects 38 students of SMP N 4 Belik class VIIID academic year 2018/2019. The results of this study indicate that students' literacy skills in the category are low. This can be seen from the aspect of identifying valid scientific opinions (58%), understanding the design elements of the research findings (24%), being able to solve questions based on scientific phenomena (32%), understanding and interpreting basic statistics (21%) and students able to make inferences, predictions, and draw conclusions based on data (39%). The value obtained by students is divided into four categories of values obtained by students, which are very low, low, sufficient, and high based on the results of research, the average literacy skills of students in the low category. The conclusion of this study is that the science literacy skills of junior high school students are low on aspects of understanding and interpreting basic statistics. Keywords: Science Literacy, Contextual, Blood Circulation
Aplikasi Pupuk Organik dan NPK untuk Meningkatkan Pertumbuhan Vegetatif dan Produksi Buah Terong Hijau Raksun, Ahmad; Japa, Lalu; Mertha, I Gde
Jurnal Penelitian Pendidikan IPA Vol 5, No 2 (2019): July
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v5i2.188

Abstract

Abstract: Research has been conducted on the application of organic and NPK fertilizer to increase the growth and yield of green eggplant which aims to find out (1) the influence of organic fertilizer on vegetative growth and yield of Green eggplant, (2) the effect of NPK fertilizer on vegetative growth and yield of Green Eggplant, (3) the effect of interaction between organic fertilizer and NPK fertilizer on vegetative growth and yield of Green Eggplant. A Factorial design was used which consisted of 2 factors. The first factor is the dose of organic fertilizer and the second factor is the dose of NPK fertilizer. The treatment of organic fertilizer consists of 4 levels, namely: P0 = without giving organic fertilizer (control), P1 = giving 0.5 kg organic fertilizer /1 m2 land, P2 = giving 1.0 kg organic fertilizer /1 m2 land, P3 = giving 1.5 kg organic fertilizer/1 m2 land. NPK fertilizer consists of 5 levels namely: N0 = without NPK fertilizer (control), N1 = giving 5 gr NPK fertilizer/plant, P2 = giving 10 gr NPK fertilizer/plant, P3 = giving 15 gr NPK fertilizer/plant, P4 = giving 20 gr NPK fertilizer/plant. Growth parameters were stem height and length of green eggplant leaves. Yield parameters were fruit length and green eggplant fruit weight. Data were analyzed by using ANOVA. The results showed that the application of organic fertilizer has a significant effect on the growth and yield of green eggplant. The application of NPK fertilizer has a significant effect on the growth and yield of green eggplant. The interaction of organic fertilizer and NPK fertilizer did not significantly affect the growth and yield of green eggplant. Key Words: organic fertilizer; NPK fertilizer; growth and production of green eggplant.
ANALISIS KANDUNGAN LOGAM BERAT Pb PADA SEDIMEN dan KERANG DARAH (Genus: Anadara) di PERAIRAN PANTAI LABUHAN TERENG KABUPATEN LOMBOK BARAT Handayani, Meyla Fitri; Muhlis, Muhlis; Gunawan, Erin Ryantin
Jurnal Penelitian Pendidikan IPA Vol 2, No 2 (2016): July
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v2i2.204

Abstract

The aims of this research are to analyze the content of Lead in blood cockle (Genus: Anadara) at West Lombok Labuhan Tereng coastal waters. The content of lead in sediment and clams was analysis at Mataram University Analytical Laboratory by using wet digestion method and measured using atomic absorption spectrophotometer (AAS) in 283.3 nm wavelength. The results then compared with the sediments and clams standards applicable. Results of Pb in the sediment measurements show that the highest lead levels is 30.66 mg/kg found in around Dusun Cemara coast. The results obtained are still at the level targets under Dutch Quality Standards for Metals in sediments (IADC / CEDA), 1997. The highest Pb levels in blood clams is 13,075 mg/kg contained by a medium-sized (3.08 cm) of species A. antiquata around Kebon Talo estuary. These results are indicate that the levels of Pb in blood cockle is already distant exceeded the threshold of consumption under Indonesian National Standar, 2009 which is equals to 1.5 mg/kg, so the clams blood in coastal waters Labuhan Tereng should not be consumed greatly overheated because the accumulative character of Pb can be harmful for health.Keywords: Blood cockle, sediment, acumulation, lead
THE LEARNING TOOLS BASED ON THE REMAP TMPS MODEL (READING CONCEPT MAP TIMED PAIR SHARE) AND THE EFFECTIVENESS OF STUDENTS CRITICAL THINKING SKILLS Sariah, Sariah; Jamaluddin, Jamaluddin; Setiadi, Dadi
Jurnal Penelitian Pendidikan IPA Vol 4, No 2 (2018): July
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v4i2.123

Abstract

This study aims to improve critical thinking skills through the application of science-based learning tools REMAP TMPS model ( Reading Concept Map Timed Pair Share ). The type of research was quasi experiment with One Group Pretest-Postest design . The population in this study were all students of class VII at SMPN 4 Pujut and SMPN 6 Pujut with sampling using purpusive sampling technique so that the samples taken are class VII-A at SMPN 4 Pujut and VII-B in SMPN 6 Pujut. instruments used to measure critical thinking skills in the form of answer-question as much as 10. The results showed the average N-gain class VII-A higher than class VII-B. This suggests that REMAP TMPS-based science learning tools has effective toword student critical thinking skills.

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