scholarly journals Refractor telescope design using web camera

2021 ◽  
Vol 2126 (1) ◽  
pp. 012006
Author(s):  
M A Karaeng ◽  
S Saehana ◽  
U Wahyono

Abstract The purpose of this study was to develop a refractor telescope using a web camera as learning media. It was the Research and Development (R&D) study which referred to the model modified by Sugiyono. The product was evaluated by a media expert and undergraduate students of Sub-Department of Physics Education, Tadulako University using questionnaires with a 4-point Likert scale. The product quality data obtained were analyzed using descriptive analysis. The quality of the product based on the analysis of the media expert’s assessment was good with the average score of 2.92. Meanwhile, the results of student responses to the limited trial obtained a score of 3.20 which indicated the agreement of usability. The test results and questionnaire analysis showed that the refractor telescope using the developed Web Camera (WebCam) is feasible to be used as learning media.

2021 ◽  
Vol 2126 (1) ◽  
pp. 012011
Author(s):  
D K Umam ◽  
S Saehana ◽  
A Kade ◽  
Yunanli

Abstract This research aimed to produce a device for converting heat energy into electrical energy as a teaching aid for physics. This research process is development research, which refers to the Research and Development (R&D) model. The instrument used was a questionnaire with a five Likert scale, which addressed media experts, material experts, physics teachers in SMA Negeri 2 Sigi, and class XII MIA SMA Negeri 2 Sigi students. The product quality data obtained were analyzed using descriptive analysis. Based on the analysis of the media expert’s assessment, the quality of the product obtained a percentage value of 87.69% with the interpretation of “Very Good”. Based on the analysis of the assessment by material experts, the quality of the product obtained a percentage value of 84.44% with the interpretation “Very Good”. For the results of the physics teacher’s response, a percentage value of 86.00% was obtained with the interpretation “Strongly Agree”. For the results of the responses of class XII MIA students in the limited test, a percentage value of 83.56% was obtained with the interpretation “Strongly Agree”. The test results and questionnaire analysis showed that the heat energy conversion device developed into electrical energy was feasible to use.


2017 ◽  
Vol 8 ◽  
Author(s):  
Claudio Fazio ◽  
Onofrio Rosario Battaglia ◽  
Rosa Maria Sperandeo-Mineo

In this contribution we describe a research aimed at pointing out the quality of mental models undergraduate engineering students deploy when asked to create explanations for phenomena/processes and/or use a given model in the same context. Student responses to a specially designed written questionnaire are initially analyzed using researcher-generated categories of reasoning, based on the Physics Education Research literature on student understanding of the relevant physics content. The inferred students’ mental models about the analyzed phenomena are categorized as practical, descriptive, or explanatory, based on an analysis of student responses to the questionnaire. A qualitative analysis of interviews conducted with students after the questionnaire administration is also used to deepen some aspects which emerged from the quantitative analysis and validate the results obtained.


2018 ◽  
Vol 4 (2) ◽  
pp. 247
Author(s):  
Satutik Rahayu ◽  
Nur Lestari ◽  
I Gde Mertha

This study aims to: 1) determine the quality of the results of VCDs that have been developed, 2) find out whether there is an increase in student teaching skills in micro-learning. This research is a development research using ADDIE (Analysis, Design, Development, Implementation and Evaluation) models. Validation of learning videos is done by learning media experts and user response questionnaires. Data analysis used descriptive analysis and N-Gain test. The results showed that the average score of the media expert validation was 86.7% in the good and usable category, while the results of the user response questionnaire were 87.9% in the good category and suitable for use. Hail the N-gain test found that there was an increase in the basic teaching skills of students after using the VCD of basic teaching skills in the micro-learning course which was 0.7.


2018 ◽  
Vol 4 (2) ◽  
pp. 111
Author(s):  
Achmad Kholid Fadlullah

<p>The quality of education is determined by the integration between all learning components such as teachers, pre-facility facilities, curriculum, learning methods, learning media. The use of media is an effort to overcome learning problems. The media functions as an intermediary between educators and students in conveying information. To achieve this goal, the researchers developed a media that is an Android-based Wonder share Quiz Creator evaluation media. The purpose of the research is 1) To describe the specifications of the evaluation media for Wonder share Quiz Creator based on Android in Sociology subjects in XI IPS 2 MAN 1 Malang. 2) To develop an Android-based Wonder share Quiz Creator evaluation media in Sociology subjects in XI IPS 2 MAN 1 Malang. 3) To describe the results of the development of an Android-based Wonder share Quiz Creator media evaluation in Sociology subjects in XI IPS 2 MAN 1 Malang. The research method uses Research and Development (R &amp; D), referring to the model introduced by Borg and Gall. Techniques for collecting data through observation, tests, and questionnaires. Data analysis techniques used content analysis of learning and descriptive analysis. The results of this study indicate that: 1) Android-based Wonder share Quiz Creator evaluation media in sociology learning is an application containing’s a variety of questions, random in nature, can be used online and offline. 2) Wonder share Quiz Creator media evaluation which was initially web-based in the computer was developed into an Android-based application 3) this development proved useful, interesting and valid in, based on 80% sociology material validator data, 73% design experts, and IPS 2 student responses 82.57%. The increase in learning outcomes pre-test and post-test from the results of t-test, T table is 3.23&gt; 1.68. This shows that the product developed has a high level of validity and high attractiveness, so it is suitable to be used in supporting the evaluation process.</p><p><strong><em>Keywords:</em></strong><strong><em> wonder share quiz creator; android; social science</em></strong></p>


2020 ◽  
Vol 6 (2) ◽  
pp. 169
Author(s):  
Philip Nababan ◽  
Efendi Napitupulu ◽  
R Mursid

Abstrak: Penelitian ini bertujuan untuk: (1) Mengetahui tanggapan siswa terhadap kualitas media pembelajaran interaktif pada pembelajaran Teknik Pemesinan Bubut. (2) Mengetahui keefektifan media pembelajaran interaktif pada pembelajaran Teknik Pemesinan Bubut pada siswa program keahlian Teknik Pemesinan. Jenis penelitian ini adalah penelitian pengembangan. Data tentang kualitas produk pengembangan ini dikumpulkan dengan angket dan dianalisis dengan teknik analisis deskriptif kualiatatif. Hasil penelitian menunjukkan bahwa; (1) uji ahli materi pelajaran Teknik Pemesinan Bubut berada pada kualifikasi sangat baik (88,92%), (2) uji ahli desain pembelajaran berada pada kualifikasi sangat baik (85,21%), (3) uji ahli rekayasa perangkat lunak berada pada kualifikasi sangat baik (84,03%), (4) uji coba perorangan berada pada kualifikasi sangat baik (88,75%), (5) uji coba kelompok kecil berada pada kualifikasi sangat baik (91,35%) dan (5) uji coba lapangan berada pada kualifikasi sangat baik (88,31%). Hasil pengujian hipotesis membuktikan bahwa terdapat perbedaan antara hasil belajar siswa yang menggunakan media pembelajaran interaktif  dengan hasil belajar siswa yang menggunakan buku teks. Hal ini ditunjukkan dengan hasil pengolahan data diperoleh  thitung sebesar 4,68 dan ttabel sebesar 1,67 pada taraf kepercayaan 95 persen. Maka diperoleh bahwa thitung> ttabel. Disimpulkan bahwa  hasil belajar siswa yang menggunakan media pembelajaran interaktif dengan efektifitas sebesar 72,77 %. lebih tinggi dari hasil belajar siswa yang diajar dengan pembelajaran menggunakan buku teks dengan efektifitas sebesar 62,13%. Kata Kunci: media pembelajaran interaktif, teknik pemesinan bubut Abstract: This study aims to: (1) Determine student responses to the quality of interactive learning media on learning Lathe Machining Techniques. (2) Knowing the effectiveness of interactive learning media on learning of Machining Lathe in students of Machining Engineering expertise program. This type of research is development research. Data about the quality of this development product was collected by a questionnaire and analyzed by qualitative descriptive analysis techniques. The results showed that; (1) Lathe machining engineering subject matter expert test is in very good qualification (88.92%), (2) learning design expert test is in very good qualification (85.21%), (3) software engineering expert test is in in very good qualifications (84.03%), (4) individual trials were in very good qualifications (88.75%), (5) small group trials were in very good qualifications (91.35%) and (5 ) field trials are in very good qualifications (88.31%). Hypothesis testing results prove that there are differences between student learning outcomes using interactive learning media with student learning outcomes using textbooks. This is indicated by the results of data processing obtained by tcount of 4.68 and ttable of 1.67 at a confidence level of 95 percent. Then it is obtained that tcount> ttable. It was concluded that student learning outcomes using interactive learning media with an effectiveness of 72.77%. higher than student learning outcomes taught by learning to use textbooks with an effectiveness of 62.13%. Keywords: interactive learning media, lathe machining techniques


2019 ◽  
Vol 5 (3) ◽  
Author(s):  
Fida Amalia Buana Putri ◽  
Shanta Rezkita

Based on the necessary with the teacher, it is concluded that teachers need information technology (IT) based on learning media in the teaching and learning process. The main purpose of this study is to know about the research procedure, to know about the quality of the media that developed, and the expert's respond. This study is a Research and Development (R&D). The on  procedure of the procedure uses 9 steps, including 1)Potentials and problems, 2)Data collection, 3)Product design, 4)Design validation, 5)Design revision, 6)Product try-out, 7)Product revision, 8)Application try-out, 9)Product revision until the desired products interactive powerpoint learning media are complete. The result of the study showed that the media were appropriate to be implemented. This showed from media experts of the validation result that average score 3,34 with a very good category. Material expert student's that average score 3,40 with very good category and from linguists expert result that average score 3,22 with the good category. Next, the average validation score of the teacher is 3,62 with a very good category and peers of the validation result that average score 3,44 with a very good category. The last response of the students in applications try-out responses that average score 92,75 with a very good category. 


2021 ◽  
Vol 2 (1) ◽  
pp. 19-28
Author(s):  
Ifa Dwi Aurelia ◽  
Ratih Asmarani

One of the use of learning media is to deliver the material from teacher to students. There are many types of learning media that can be applied to learning activities, especially at the primary school. In the era of technology, there are many new habits in life especially for primary school. Therefore, it is necessary to strengthen the material for primary school students about the value of goodness contained in regional arts. This research is included in research and development which will later obtain the results of a teaching material in the form of a Pop up book learning media by using Jombang's art figures. In addition to obtain a learning media, this research also aims to determine the process, implementation, and quality of the media. The research process was carried out in accordance with the steps in the 4-D model from Thiagarjan which had been modified by researchers without dissemination stage. In the development process, the researcher obtained 94.35% from material and media experts. While at the implementation stage, the researcher obtained 85.89% from the average score given by media users. Then 87.01% for the quality score which is the average of the process and implementation stages which indicates that the media developed by researchers is included in the category of very valid and feasible to be used without the need for improvement.


Author(s):  
Meysi Azkiyah ◽  
Amran Laga ◽  
Meta Mahendradatta ◽  
Riku Shimomura

Chao is a typical Indonesian dish from Pangkep Regency that is relatively unknown to the general public. Chao is made from fermented fish, which is subsequently fermented with rice. Chao has the properties of pasta-like, light-brown color, unique flavor, slightly acidic and salty taste. Pangkep communities typically use chao as a seasoning, condiment ingredient, or as a side dish. Due to the product's attractive features, which resemble stale food, make it less appealing to consumers. It necessitates innovation and processing technologies in order to improve the quality of Chao products. This research this study aimed to find out the effect of rice variations including white rice, red rice and black rice on the characteristics of Shrimp Chao during fermentation. The testing parameters in this study were total Lactic Acid Bacteria (LAB), total lactic acid, pH, and organoleptic. The highest LAB growth was found in the red rice that is 7.67 log cfu/g with the lowest pH value of 6.02 and the highest lactic acid content (1.8%). The best organoleptic test results own by white rice-based shrimp chao with preference average score of 3.85 and red rice 3.78 which imply “like” in organoleptic scale scoring.


2021 ◽  
Vol 1 (1) ◽  
pp. 49-54
Author(s):  
Musliadi Musliadi ◽  
Reski Yusrini Islamiah Yunus ◽  
Muhammad Affan Ramadhana

This study investigates students' perception of the use of YouTube to facilitate undergraduate students' speaking activities. The method used in this research is descriptive quantitative research. The sampling system is done randomly and takes 40 students as a sample. The questionnaire has two parts, followed by ten questions with five answer choices using a Likert scale covering strongly disagree to strongly agree. The result of the study shows that 80% of students access YouTube because YouTube is very interesting, 75% of students say YouTube is an easy media to access, 80% of students say YouTube can be used as a learning resource (80%), and 85% of students use YouTube as a medium for doing speaking tasks. The student response to the use of YouTube as the media of facilitating students' speaking tasks is very positive, where 72% of students stated they strongly agreed if the practice of speaking through YouTube was applied, and 20% of students agreed. In general, student responses in using YouTube to facilitate students speaking activities in distance learning during the Covid-19 pandemic are very positive.


2020 ◽  
Vol 4 (1) ◽  
pp. 10-19
Author(s):  
Dahlia Dahlia

The development of instructional especially media of a herbarium book is an innovation that aims to assist students in searching directly the object of leaf morphology studies. This development research starts from the needs analysis stage which is used to gather information, planning in media making, media design, media making, after that product validation by a team of media experts and material experts, then testing individual products, small groups and large groups. The subject of this product testing were students of the Biology Education Study Program at Pasir Pengaraian University. The results of the validation by the material experts showed that the quality of learning media using the herbarium book on leaf morphology material was included in the "very feasible" criteria, with an average score of 86.46%. The results of validation by media experts are included in the "very feasible" criteria, with an average score of 88.54%. Individual assessment obtained the criteria of "very feasible", with an average score of 84.16%. Judgement from small groups obtained a percentage of eligibility of 81.45% with very feasible criteria, and judgement from large groups of 83.95% with "very feasible" criteria. The results of the development of herbarium book media are very decent.


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