Jurnal Penelitian dan Pengkajian Ilmu Pendidikan: e-Saintika
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Development of Web-Based Science Learning Module in Improving the Students’ Understanding of Eco-Literacy
No full textThis study aims to determine the feasibility of the module in improving students' understanding of eco-literacy. This research is development research using the 4D development model with ten students as research participants. The learning module developed is validated by two competent validators from internal and external campuses. The feasibility of the module includes the validity and reliability of the module as measured by the validation questionnaire sheet. The validation results show that the module obtained an average score of 3.66 (very valid category), with the reliability score of 0.83 (real category). The research data were analyzed descriptively and quantitatively. Students' understanding was measured on the competency test in the module on the pretest and posttest after giving the treatment. The results of the module trial calculated using the N-gain formula indicate that the effectiveness was under the high category with a score of 0.703 with an average pretest and posttest values of 43.7 and 83.49, respectively. Based on the study results, it can be concluded that the web-based science learning module developed is valid, reliable, and effective in improving students' understanding of eco-literacy
Implementation of Linguistic politeness throughout Online Lectures via WhatsApp during the Covid-19 Pandemic
No full textThis research aims to investigate the implementation of politeness in the language of lecturers and students as well as students and students through online lectures at the Faculty of Teacher Training and Education, Universitas Sembilanbelas November Kolaka on the WhatsApp application. The research methodology used is descriptive qualitative with a focus on research, namely the fulfillment and violations of the principles of politeness in the language contained in online lecture conversations on WhatsApp. The data collection technique uses documentation or screenshots, and the data analysis technique uses content analysis methods with inductive procedures. The results indicate that the communication of lecturers to students and students to students based on the WhatsApp social network still pays attention to the principles of linguistic politeness in communication discourse. Based on the WhatsApp social network, students and lecturers can meet the principles of linguistic politeness, including maxim of wisdom, generosity, appreciation, simplicity, compatibility, and sympathy. However, there were also still some violations of the principle of politeness
Synthesis and Characterization of ZnO Thin Layers using Sol-Gel Spin Coating Method
No full textThe potential of thin layer in many applications has led to research on the development of many new materials and their fabrication methods. This study aimed to synthesize a thin layer of ZnO using the facile and low-cost sol-gel spin coating method. The ZnO thin layer is deposited on a glass substrate and analyzed to observe the influence of the deposition variables such as heating and rotation speed, and its aging. The characterization methods include the identification of the formed phase using X-Ray Diffractometer (XRD), and the microstructure and elemental composition using Scanning Electron Microscopy (SEM) coupled with EDS (Energy Dispersive Spectrometer). The study shows that a thin layer of ZnO is successfully deposited on a glass substrate by heat treatment at temperatures of 300 oC and 500 oC. Furthermore, XRD reveals that higher heating temperatures result in higher diffraction peak intensity. At a heating temperature of 300 °C crystals are formed but are not yet perfectly oriented, while they are at 500 °C. On the other hand, higher spin coating rotation speed gives rise to lower intensity of diffraction peak. The ZnO crystallization is easier to form in the coating process with a lower rotation (1500 rpm). Interestingly, the thin layer is stable over time where there is no significant change in each sample, both in terms of intensity and width of the ZnO crystal peak. The results indicate that gel precursor aged less than two days can form ZnO crystals. Finally, SEM results show that the surface morphology of the ZnO layer heated at 500 oC has an average grain size of 300 nm. Based on the cross-sectional results of SEM shows that the higher the coating rotation speed has resulted the thinner of the ZnO layer, where the thickness of the resulting layer is on order >5 mm
STEM Approach: The Development of Optical Instruments Module to Foster Scientific Literacy Skill
No full textThe STEM is an approach that seemly considered will be useful in online learning, because it can facilitate students to learn some skills from about 21st century. This study was aimed to develop module-based STEM in improving scientific literacy skills in distance learning through e learning. Because this research developed module-based STEM, this study was named developmental research. The research procedure follows the stages of the R & D method developed by Barg and Gall which includes the studies of preliminary, product planning, development, validation (validation by experts), and  revision, lastly field testing. Moduls that have been declared valid by experts are field tested using one group pretest-posttest design in an experimental class. The results show that the feasibility of module-based STEM in distance learning model to increase students' skills within scientific literacy was valid with the average score of 4.28 by two experts. In addition, the application of integrated STEM teaching materials through e-learning has a moderate effect on students' scientific literacy skills since the N-gain score was 0.6
Teachers Perception, Usage of Community Resources in Social Studies and Civic Education, Delta State, Nigeria
No full textThe study aimed at reporting the perception and usage of community resources by Social Studies and Civic Education teachers in Delta State, South South, Nigeria. Two research questions and one hypothesis were raised to give the study a direction. A sample of 196 out of a population of 656 Social Studies and Civic Education teachers was used for this study. Instrumentation was done with researcher’s designed questionnaire with a reliability index of 0.89. Data was analyzed with percentage for research questions and Analysis of Variance (ANOVA) was used to test the hypothesis of the study. Findings of the study demonstrated that Social Studies and Civic Education teachers of public schools in Delta State perceive the use of community resources to be high for effective teaching but usage of the resources was relatively low. Hence the study concluded by recommending that spirited effort be made by all the stakeholders involved to employ the judicious use of community resources for Social Studies and Civic Education instructions in secondary schools of Delta State
Development of rGO/Fe3O4 Composites as Glucose Biosensors
No full textThe rGO/Fe3O4 composite is one type of composites that can be used as a biosensor material, especially glucose sensors. The main ingredients of the composite synthesis are graphite and iron sand. The synthesis process of Fe3O4 was done using the coprecipitation method, while the graphite oxidation process was accomplished using the modified Hummer's method. The composites were formed using the ex-situ wet mixing method. The formed iron sand and graphite were characterized using FTIR and XRD, and it was found that Fe3O4 was formed from the appearance of the Fe-O bond, the oxidation process of graphite was seen from the appearance of the C=O bond, and the detection of Fe peaks corresponded to the cubic crystal plane. Likewise, the composites formed were also characterized using FTIR and XRD for identification of the rGO/Fe3O4 composite formation. It was proven from the presence of Fe-O and C-O bonds and the appearance of an amorphous peak of rGO in the XRD results. The performance of the rGO/Fe3O4 composites as the glucose biosensor was examined by varying the mass of Fe3O4 on the composite, using UV-Vis spectroscopy. The performance of the rGO/Fe3O4 composite biosensor in absorbing glucose reached optimum at a mass variation of 0.3 grams of Fe3O4, as demonstrated by by the lowest absorbance peak with an intensity of 0.0048 at a wavelength of 440 nm, corresponding to glucose entrappment of 7.1 mg/gram
The Liquid Phase Deposition of ZnPtBNs: Study on Structural, Morphology, and Their Sheet-Resistant
No full textThis paper reports ZnPt bimetallic nanoparticles (ZnPtBNs) synthesis through the liquid phase deposition (LPD) of of Zn(NO3)2.6H2O onto the indium-titanium oxide (ITO) substrates at various concentrations. The Effects of growth solution, the morphology, structural, and sheet resistance were studied. After preparation, the materials were characterized by using field emission electron microscopy (FESEM), energy dispersive X-ray (EDX), X-ray diffraction (XRD) and Four Point Probe (FPP) measurement by using Keithley 2401 source-meter. By inserting a growth solution into the ITO substrate the ZnPtBNs was successfully in-situ prepared. The synthesized ZnPtBNs exhibited homogeneous, fibrous at the (111) orientation with an average diameter of 100-700 nm. The atomic ratio of Zn:Pt and sheet resistance of ZnPtBNs decreased with the increase of Zn(NO3)2.6H2O concentration. The optimal elemental composition of the sample was at a ratio of Zn:Pt (1:25) obtained at 0.467 mM of Zn(NO3)2.6H2O. It showed the smallest sheet resistance (13.41 ?) which was 38% lower than the ITO sheet resistance (18.44 ?)
Pengaruh Media Pembelajaran terhadap Motivasi Belajar: Tinjauan berdasarkan Karakter Generasi Z
No full textSalah satu permasalahan yang menarik adalah perbedaan karakter mahasiswa yang sering disebut sebagai Generasi Z. Tujuan penelitian ini adalah untuk mengetahui perbedaan motivasi belajar mahasiswa yang diberikan media pembelajaran sesuai dengan karakter Generasi Z. Penelitian ini merupakan penelitian kuasi eksperimen dengan one sample pretest-posttest design. Sampel dalam penelitian ini adalah 21 mahasiswa di Jurusan Matematika, UIN Alauddin Makassar. Data hasil penelitian dikumpulkan menggunakan kuesioner dan dianalisis menggunakan uji t. Hasil penelitian menunjukkan bahwa terdapat perbedaan motivasi sebelum dan sesudah diberikan media pembelajaran sesuai dengan karakter Generasi Z (bahan ajar yang menarik, penggunaan motion graphic, sli.do, kahoot dan strategi problem solving berdasarkan permasalahan kehidupan sehari-hari).The Effect of Learning Media on Learning Motivation: Overview based on Generation Z CharacterAbstractOne interesting problem is the difference in the character of students who are often referred to as Generation Z. The purpose of this study was to determine differences in student learning motivation given learning media in accordance with Generation Z characters. This research is a quasi-experimental study with one sample pretest-posttest design. The sample in this study were 21 students in the Department of Mathematics, UIN Alauddin Makassar. Research data were collected using a questionnaire and analyzed using t test. The results showed that there were differences in motivation before and after learning media were given according to Generation Z characters (interesting teaching materials, use of motion graphics, sli.do, kahoot and problem solving strategies based on problems of daily life)
Analysis of the Hydroponics Program in Instilling an Environmental Care Attitude for Elementary School Students
No full textThis study aimed to describe the planting of environmental care through hydroponic programs. This type of research is qualitative research with purposive sampling technique. The research subjects were students in grade V SDN Susukan 04 East Ungaran Semarang Regency. Data collection techniques through FGD, questionnaires, interviews, and documentation. The research instrument used was a draft FGD, questionnaire sheets, interview guides, and documentation archives. Technique validity of data through source triangulation and technique triangulation. Students carry out the hydroponic program with a floating raft system through the axis technique. The planting of an environmental care attitude is carried out through several stages of the hydroponic program, namely the stages of sowing, seedling, growth/enlarging and harvesting. The results showed that the most dominant environmental care attitude of students was nurturing plants, while the weakest environmental care attitude of students was developing a comfortable environment. The environmental care attitude that has been embedded in elementary school students is the interest in planting and caring for plants, conserving energy by using water as needed, throwing trash into the trash, and recycling used goods
The Effect of Personal Attitude and Subjective Norm on Entrepreneurial Interest of Biology Education Students
No full textEntrepreneurship learning in university becomes a bridge to build students' knowledge, interests, and skills in the entrepreneurial field. As it is to produce graduates who are creative, innovative, productive, reliable, quality, independent, having self-controlled, and competitive. This current research aimed to find out (1) the students' attitudes, subjective norms, and entrepreneurial interests; (2) the influence of subjective norms and attitudes on students’ entrepreneurial interests. It was an ex post facto research with associative descriptive approach. It was conducted in the even semester of 2020 with 56 samples of students of the Biology Education, FSTT Mandalika University of Education who were selcted using purposive sampling technique. The instrument administered was a closed questionnaire about attitudes, subjective norms, and entrepreneurial interests with a Likert scale and  it had been validated by experts. The datawere analyzed using descriptive and inferential statistics with multiple linear regression tests. The results showed that the students’ entrepreneurial attitude had a mean of 3.13 in good category, the subjective norm was 3.13 in good category, and the entrepreneurial interest was 3.08 in good category. Next, the results of multiple linear regression namely (1) the F-test value fell in 16.036 and the significance value of 0.000 was greater than the alpha value of 0.05 (> 0.05). It meant that there was an influence of attitude and subjective norms simultaneously towards students’ entrepreneurial interest; (2) the t-test showed that the significance value of attitude (X1) was 0.033 and the subjective norm (X2) was 0.030 which meant greater than the alpha value 0.05 (> 0.05). It meant that there was a partial influence of attitude and subjective norms on students’ entrepreneurial interest; and (3) the coefficient of determination test showed the value of R Square was 0.377 or 37.7%. It meant that the attitude and subjective norms affected the entrepreneur's interest and the rest of the percentage was affected by other variables or factors