Jurnal Penelitian Pendidikan IPA (Science Education Graduate Program University of Mataram)
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Science Teaching Materials Based Jayapura Ethnoscience and Their Impact on Students' Science Process Skills
No full textStudents living in a dominant culture need science teaching materials that are able to mediate the transition of life from traditional science to scientific science. The solution offered is the application of ethnoscience in science learning. The purpose of the study was to develop ethnoscience-based science teaching materials and see its impact on students' science process skills. The type of research is research and development (Borg & Gall, 2003). The population of the study was grade VII students from four junior high schools in Jayapura City. The research sample consisted of eight classes, namely four classes as experimental classes that learned with Jayapura ethnoscience-based teaching materials and four classes as control classes with conventional teaching materials. Furthermore, a quasi-experiment was used using a randomized pretest-posttest control group design. The results of the study showed that with the reconstruction carried out, many traditional sciences were found that could be used to teach modern science. The developed Jayapura ethnoscience-based science teaching materials had a positive impact, and there was a significant difference in science process skills between students in the experimental and control classes. The developed Jayapura ethnoscience teaching materials were able to mediate students' learning transitions and support students' science process skills in learning science.Siswa yang hidup dalam budaya yang dominan memerlukan bahan ajar IPA yang mampu memediasi peralihan kehidupan dari sains tradisional ke sains ilmiah. Solusi yang ditawarkan adalah penerapan etnosains dalam pembelajaran IPA. Tujuan penelitian untuk mengembangkan bahan ajar IPA berbasis etnosains dan melihat dampaknya terhadap keterampilan proses sains siswa. Jenis penelitian adalah penelitian dan pengembangan (Borg & Gall, 2003). Populasi penelitian adalah siswa kelas VII dari empat SMP di Kota Jayapura. Sampel penelitian berjumlah delapan kelas yaitu empat kelas sebagai kelas eksperimen yang belajar dengan bahan ajar berbasis etnosains Jayapura dan empat kelas sebagai kelas control dengan bahan ajar konvensional. Selanjutnya dipergunakan eksperimen semu menggunakan randomized pretest-posttest control group design. Hasil penelitian menunjukkan dengan rekonstruksi yang dilakukan, ditemukan banyak sains tradisional yang dapat dipergunakan untuk mengajar sains modern. Bahan ajar IPA berbasis etnosains Jayapura yang dikembangkan memberikan dampak positif, dan ditemukan adanya perbedaan yang signifikan terkait keterampilan proses sains antara siswa kelas eksperimen dan kelas kontrol. Bahan ajar etnosasins Jayapura yang dikembangkan mampu memediasi peralihan belajar siswa dan mendukung keterampilan proses sains siswa dalam belajar IPA
Potensi Daya Inhibisi Ekstrak Etanol Daun Sirih Merah (Piper crocatum Ruiz & Pav) Terhadap Mikroorganisme Pada Biofilm Di Pelat Gigi Tiruan Berbahan Hot Curing Acrylic
No full textTooth loss reduces quality of life by affecting chewing and speech function and can interfere with social activities. Hot curing acrylic dentures have the disadvantage of high porosity and surface roughness, so they are susceptible to food residues and microorganisms that can lead to the formation of biofilm and denture stomatitis. Red series leaves (Piper crocatum Ruiz & Pav) have chemical content such as flavonoids, alkaloids, and essential oils that have the potential to be antimicrobials. This study aims to determine the potential of red betel leaf ethanol extract in inhibiting microorganisms in biofilms in denture plates made of hot curing acrylic. This study used the liquid dilution method to test the effectiveness of red betel leaf ethanol extract with concentrations of 10%, 25%, 50% and 75% on the growth of Streptococcus mutans, Lactobacillus acidophilus, and Candida albicans contaminated on round denture plates made of hot curing acrylic. The results showed that the ethanol extract of red betel leaf significantly reduced the number of bacterial and fungal colonies, with a concentration of 75% showing the highest effectiveness, especially against the bacterium Lactobacillus acidophilus with an average colony count of 45.67 ± 4.04. Red betel leaf ethanol extract contains chemical compounds that are effective as antimicrobials in biofilms in denture plates made of hot curing acrylic. This extract has the potential to be an alternative natural ingredient for denture cleaning.Abstract: Kehilangan gigi menurunkan kualitas hidup dengan mempengaruhi fungsi
mengunyah dan berbicara serta dapat mengganggu aktivitas sosial. Gigi tiruan berbahan
hot curing acrylic memiliki kelemahan yaitu porositas dan kekasaran permukaan tinggi,
sehingga rentan terhadap sisa makanan dan mikroorganisme yang dapat menyebabkan
pembentukan biofilm dan denture stomatitis. Daun siri merah (Piper crocatum Ruiz &
Pav) memiliki kandungan kimia seperti flavonoid, alkaloid, dan minyak atsiri yang
berpotensi sebagai antimikroba. Penelitian ini bertujuan untuk mengetahui potensi
ekstrak etanol daun sirih merah dalam menghambat mikroorganisme pada biofilm di
pelat gigi tiruan berbahan hot curing acrylic. Penelitian ini menggunakan metode dilusi
cair untuk menguji efektivitas ekstrak etanol daun sirih merah dengan konsentrasi 10%,
25%, 50% dan 75% terhadap pertumbuhan Streptococcus mutans, Lactobacillus acidophilus,
dan Candida albicans yang dikontaminasi pada pelat gigi tiruan berbentuk bundar
berbahan hot curing acrylic. Hasil penelitian menunjukkan bahwa ekstrak etanol daun
sirih merah secara signifikan menurunkan jumlah koloni bakteri dan jamur, dengan
konsentrasi 75% menunjukkan efektivitas tertinggi, terutama terhadap bakteri
Lactobacillus acidophilus. Kesimpulannya, ekstrak etanol daun sirih merah mengandung
senyawa kimia yang efektif sebagai antimikroba pada biofilm di pelat gigi tiruan
berbahan hot curing acrylic. Ekstrak ini berpotensi sebagai bahan alami alternatif
pembersih gigi tiruan.
Keywords: Biofilm; Pelat gigi tiruan; Hot curing acrylic; Ekstrak etanol daun sirih merah;
Antimikroba; Streptococcus mutans; Lactobacillus acidophilus; Candida albican
Validity of Science Module Based on Problem Based Learning Multiple Representations to Improve Students' Higher Level Thinking Skills on the Topic of Acid-Base
No full textThe background of this research is the use of learning resources that have not been effective in improving students' higher-order thinking skills. This study aims to develop a science module, analyze its validity, feasibility, and effectiveness on higher order thinking skills. This research type of research and development (R&D) uses the 4D development model according to Thiagarajan (Define, Design, Develop, Disseminate). The science module was validated by six validators. The effectiveness of the module is seen from the increase in the students' higher order thinking skills test scores from 36 student. Validity was analyzed using Aiken's V, while effectiveness was analyzed with N-Gain. In the validation level, the learning material expert validator obtained a score of 0.91 with the category “valid”, the presentation expert validator obtained a score of 0.88 with the category “valid”, the linguist validation obtained a score of 0.91 with the category “valid”, and the graphic expert validation obtained a score of 0.88 with the category “valid”. A feasibility value of 79.8 by teachers with a feasible category. The effectiveness results show that the module has an effect on students' higher order thinking skills as evidenced by the N-Gain score of the experimental class of 0,63 with a fairly effective category while the N-Gain score of the control class is 0,55 with a less effective category. Thus, the developed e-module is declared valid, feasible, and effective
Development of Photo Studio Reservation Website Design Using Design Thinking Method
No full textThis research aims to design the interface of a web-based reservation system at Infokus Photo Studio using a Design Thinking approach. Obstacles in the reservation process, such as schedule conflicts, unavailability of time slot display, and late confirmation, were identified through customer questionnaires. The Design Thinking method was applied in five stages: empathize, define, ideate, prototype, and test. The research was conducted by identifying user needs, designing ideas, creating prototypes, and conducting tests. Testing using the System Usability Scale (SUS) involved eight respondents and resulted in an average score of 87, which is classified as acceptable in the acceptability range, a B on the Value Scale, and very good on the Adjective Rating. These results show that this system design successfully simplifies the reservation process, reduces operational errors, and improves service quality and smooth studio operations
Amino Acid Content Profile and Antioxidant Activity Test of Spirulina Platensis Bioactive Protein Extract Using DPPH Method
No full textThe study of Amino Acid Content Profile and Antioxidant Activity Test of Spirulina platensis Bioactive Protein Extract with DPPH Method has been conducted. This study aims to determine the protein content and IC50 value of Spirulina platensis bioactive protein extract with DPPH method. The research method includes extraction of Spirulina platensis powder using buffer A solvent. Determination of protein content with Lowry method using Bovine Serum Albumin (BSA) as standard solution and antioxidant activity test with DPPH method. The results of the analysis of protein content of Spirulina platensis extract obtained a level of 39.51%. The antioxidant activity test against DPPH free radicals showed that Spirulina platensis protein extract has antioxidant activity with IC50 value of 599.17 ± 3.75 ppm
Air Conditioner (AC) Operation Using the Internet of Things
No full textCreate an Internet of Things-based Air Conditioner operating system to make it easier to operate the AC. This research examines whether the system designed can transmit IR Code via IR Transmitter to AC if the device is placed at different distances. The steps to make it happen are to follow the stages of the prototyping method, which consist of gathering requirements, developing prototypes, and testing prototypes. The hardware circuit built consists of the Node MCU ESP8266, DHT 11 sensor, Infra-Red, software consisting of Arduino IDE, and blynk. By placing the NodeMCU ESP 8266 in positions with different distances, the tool can send IR Code data via the IR Transmitter to the AC, buttons on the blynk application have been made and can work according to their functions. The test was carried out with 4 different location positions, namely position 1 with a distance of 1 meter, position 2 with a distance of 3 meters, position 3 with a distance of 2 meters, and position 4 with a distance of 4 meters. From 4 test location positions with sufficient category signals to very good categories, microcontrollers can be connected to the blynk application on smartphone users. The Blynk application can function according to the commands made, the IR code can be sent through the IR transmitter to the air conditioner (AC). The DHT 11 sensor successfully measures the temperature and humidity of the air. Hopefully, in the future, the development of this tool into a multi-controller capable control not only AC but also other electronic devices
Pengembangan LKPD tentang Biodiversitas Vegetasi Rawa Berbasis Kearifan Lokal Desa Burai Terintegrasi Model Inkuiri Terbimbing
No full textContextual and environment-based science learning remains a challenge, especially in enhancing students' science process skills (SPS). At MTs Nurul Ula Desa Burai, the lack of learning materials based on environmental exploration and the minimal use of active learning models pose obstacles. However, the swamp ecosystem in Desa Burai is rich in biodiversity and can be utilized as a learning resource. This study aims to develop a guided inquiry-based LKPD incorporating swamp vegetation biodiversity to improve SPS. Using the R&D method with the 4D model (Define, Design, Develop, Disseminate), the study involved seventh-grade students at MTs Nurul Ula Desa Burai. The results show that the LKPD is highly valid (94.74%), practical for students (75%) and teachers (95%), and effective in enhancing SPS based on observation, pretest and posttest results. In conclusion, this LKPD is valid, practical, and effective while also promoting and preserving the local wisdom of Desa Burai.Pembelajaran sains berbasis kontekstual dan lingkungan masih menjadi tantangan, terutama dalam meningkatkan keterampilan proses sains (KPS) siswa. Di MTs Nurul Ula Desa Burai, keterbatasan bahan ajar berbasis eksplorasi lingkungan serta minimnya penggunaan model pembelajaran aktif menjadi hambatan. Namun, ekosistem rawa di Desa Burai memiliki keanekaragaman hayati yang tinggi dan dapat dimanfaatkan sebagai sumber belajar. Penelitian ini bertujuan untuk mengembangkan LKPD berbasis inkuiri terbimbing dengan mengintegrasikan keanekaragaman vegetasi rawa guna meningkatkan KPS siswa. Menggunakan metode R&D dengan model 4D (Define, Design, Develop, Disseminate), penelitian ini melibatkan siswa kelas VII di MTs Nurul Ula Desa Burai. Hasil penelitian menunjukkan bahwa LKPD yang dikembangkan memiliki tingkat validitas yang sangat tinggi (94,74%), praktis digunakan oleh siswa (75%) dan guru (95%), serta efektif dalam meningkatkan KPS berdasarkan observasi serta hasil pretest dan posttest. Kesimpulannya, LKPD ini valid, praktis, dan efektif serta berkontribusi dalam mempromosikan dan melestarikan kearifan lokal Desa Burai
Bahasa Inggris
No full textThis study aims to see the effectiveness of e-learning based learning media on critical thinking skills. The method used is a literature review with a qualitative approach. This study describes the development of technology as a challenge for the world of education to continue to innovate in the learning process so that it can remain balanced with the demands of the 4.0 Learning media is an effort to optimize the abstract learning process into reality. The use of learning media is now increasingly modern based on e-learning which utilizes the internet so that it can be used and accessed easily. The use of e-learning based learning media can improve critical thinking skills in the industrial revolution 4.0. Judging from the studies that have been presented, the use of media greatly helps educators in the teaching and learning process, especially in abstract lessons that can be visualized through learning media
Integrating Family-Based Science Education to Support Patient Resilience: A Study on Hemodialysis Patients in Pidie Regency
No full textChronic kidney disease is one of the health problems that has been widespread and reaches 5-10% of the human population. According to data from the Basic Health Research (Riskesdas) in 2018, the prevalence of chronic kidney disease in Indonesia is around 0.2%, with the highest prevalence in Central Sulawesi at around 0.5%. The treatment procedure for kidney failure is a kidney transplant or hemodialysis therapy. However, due to the difficulty of finding a kidney donor, hemodialysis therapy is an option. This therapy is a dialysis therapy that is done twice a week. This makes patients have psychological disorders such as stress, depression, anxiety disorders, and even suicidal thoughts. This disorder will certainly affect the patient's level of resilience, so it is necessary to have science education provided by the families in the form of health literacy, treatment knowledge, and emotional support to increase the patient's self-resilience. The research method used is a quantitative method by using cross sectional, namely data observation is carried out at one time. The research data were obtained through a questionnaire consisting of a family science education questionnaire and patient resilience. The results showed that the existence of science education provided by families in the form of health literacy, treatment knowledge, and emotional support plays a critical role in enhancing patients’ resilience during hemodialysis. A good level of resilience in patients can improve the quality of life and physical activity of patient
Development of Food Chain Magic Box Media Based on Problem Based Learning to Improve the Learning Outcomes of Elementary School Grade V Students
No full textThis study uses the type of Research and Development (R&D) development research with the Borg and Gall development model which aims to develop, test the feasibility and effectiveness of food chain magic box media based on problem-based learning. The population in the study consisted of 6 subjects for small-scale tests from class V of SDN Ngaliyan 03 and 26 subjects for large-scale tests from class V of SDN Ngaliyan 05. The data collection techniques used are test and non-test techniques. The results of the product validation assessment obtained an average percentage of 92.5% from media validators and an average percentage of 90% from material validators with both categories being very feasible. The results of the pretest and posttest of students in the small-scale test have increased with an average difference of 43.4 and N-Gain of 0.7801 with a high category. In large-scale tests, there was also an increase in pretest results, judging from the posttest results obtained with an average difference of 47 and an N-Gain of 0.7801 with a high category. This proves that the use of food chain magic box media based on problem-based learning in class V social studies learning is effective in improving the learning outcomes of social studies for grade V students of SDN Ngaliyan 05.Penelitian ini menggunakan jenis penelitian pengembangan Research and Development (R&D) dengan model pengembangan Borg dan Gall yang bertujuan untuk mengembangkan, menguji kelayakan serta efektivitas media magic box rantai makanan berbasis problem based learning. Populasi dalam penelitian terdiri dari 6 subjek untuk uji skala kecil dari kelas V SDN Ngaliyan 03 dan 26 subjek untuk uji skala besar dari kelas V SDN Ngaliyan 05. Teknik pengumpulan data yang digunakan adalah teknik tes dan nontes. Hasil penilaian validasi produk memperoleh persentase rata-rata 92,5% dari validator media dan presentase rata-rata 90% dari validator materi dengan kategori keduanya adalah sangat layak. Hasil pretest dan posttest siswa pada uji skala kecil mengalami peningkatan dengan selisih rata-rata 43,4 dan N-Gain sebesar 0,7801 dengan kategori tinggi. Pada uji skala besar, juga terjadi peningkatan pada hasil pretest, dilihat dari hasil posttest yang diperoleh dengan selisih rata-rata 47 dan NGain sebesar 0,7801 dengan kategori tinggi. Hal ini membuktikan bahwa penggunaan media magic box rantai makanan berbasis problem based learning dalam pembelajaran IPAS kelas V, efektif dalam meningkatkan hasil belajar IPAS siswa kelas V SDN Ngaliyan 05