scholarly journals A web-based formative feedback system using isomorphic items to support Physics learning

2020 ◽  
Vol 10 (1) ◽  
pp. 117
Author(s):  
Sentot Kusairi

Formative feedback plays an important role in assisting students in their learning process. However, giving information about student weaknesses and strengths is one of the challenges teachers face when they try to implement formative assessment. This study aims to develop a web-based formative feedback system that is able to provide a specific one. This is a development research with steps including needs analysis, model design, model development, and limited model testing. The research has succeeded in developing a web-based formative feedback system through utilizing isomorphic items. The results of the initial test showed that the model can provide timely and effective formative feedback both individually and in groups of students. The use of this model also allows the teachers to discuss student’s learning difficulties in real time responses. The results of this study need to be followed up with the implementation of this model in more extensive trial. 

Author(s):  
Hanaa Torkey ◽  
Elhossiny Ibrahim ◽  
EZZ El-Din Hemdan ◽  
Ayman El-Sayed ◽  
Marwa A. Shouman

AbstractCommunication between sensors spread everywhere in healthcare systems may cause some missing in the transferred features. Repairing the data problems of sensing devices by artificial intelligence technologies have facilitated the Medical Internet of Things (MIoT) and its emerging applications in Healthcare. MIoT has great potential to affect the patient's life. Data collected from smart wearable devices size dramatically increases with data collected from millions of patients who are suffering from diseases such as diabetes. However, sensors or human errors lead to missing some values of the data. The major challenge of this problem is how to predict this value to maintain the data analysis model performance within a good range. In this paper, a complete healthcare system for diabetics has been used, as well as two new algorithms are developed to handle the crucial problem of missed data from MIoT wearable sensors. The proposed work is based on the integration of Random Forest, mean, class' mean, interquartile range (IQR), and Deep Learning to produce a clean and complete dataset. Which can enhance any machine learning model performance. Moreover, the outliers repair technique is proposed based on dataset class detection, then repair it by Deep Learning (DL). The final model accuracy with the two steps of imputation and outliers repair is 97.41% and 99.71% Area Under Curve (AUC). The used healthcare system is a web-based diabetes classification application using flask to be used in hospitals and healthcare centers for the patient diagnosed with an effective fashion.


2017 ◽  
Vol 26 (01) ◽  
pp. 123-124

Arnold CW, Wallace WD, Chen S, Oh A, Abtin F, Genshaft S, Binder S, Aberle D, Enzmann D. RadPath: A web-based system for integrating and correlating radiology and pathology findings during cancer diagnosis. Acad Radiol 2016 Jan;23(1):90-100 http://escholarship.org/uc/item/22x4021q Hravnak M, Chen L, Dubrawski A, Bose E, Clermont G, Pinsky MR. Real alerts and artifact classification in archived multi-signal vital sign monitoring data: implications for mining big data. J Clin Monit Comput 2016 Dec;30(6):875-88 https://link.springer.com/article/10.1007%2Fs10877-015-9788-2 Kalpathy-Cramer J, Zhao B, Goldgof D, Gu Y, Wang X, Yang H, Tan Y, Gillies R, Napel S. A comparison of lung nodule segmentation algorithms: methods and results from a multi-institutional study. J Digit Imaging 2016 Aug;29(4):476-87 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4942386/ Moss TJ, Lake DE, Calland JF, Enfield KB, Delos JB, Fairchild KD, Moorman JR. Signatures of subacute potentially catastrophic illness in the ICU: model development and validation. Crit Care Med 2016 Sep;44(9):1639-48 https://insights.ovid.com/pubmed?pmid=27452809 Petousis P, Han SX, Aberle D, Bui AA. Prediction of lung cancer incidence on the low-dose computed tomography arm of the National Lung Screening Trial: A dynamic Bayesian network. Artif Intell Med 2016 Sep;72:42-55 https://linkinghub.elsevier.com/retrieve/pii/S0933-3657(16)30106-3 Springer DB, Tarassenko L, Clifford GD. Logistic regression-HSMM-based heart sound segmentation. IEEE Trans Biomed Eng 2016 Apr;63(4):822-32 http://ieeexplore.ieee.org/document/7234876/


Animals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 357
Author(s):  
Dae-Hyun Jung ◽  
Na Yeon Kim ◽  
Sang Ho Moon ◽  
Changho Jhin ◽  
Hak-Jin Kim ◽  
...  

The priority placed on animal welfare in the meat industry is increasing the importance of understanding livestock behavior. In this study, we developed a web-based monitoring and recording system based on artificial intelligence analysis for the classification of cattle sounds. The deep learning classification model of the system is a convolutional neural network (CNN) model that takes voice information converted to Mel-frequency cepstral coefficients (MFCCs) as input. The CNN model first achieved an accuracy of 91.38% in recognizing cattle sounds. Further, short-time Fourier transform-based noise filtering was applied to remove background noise, improving the classification model accuracy to 94.18%. Categorized cattle voices were then classified into four classes, and a total of 897 classification records were acquired for the classification model development. A final accuracy of 81.96% was obtained for the model. Our proposed web-based platform that provides information obtained from a total of 12 sound sensors provides cattle vocalization monitoring in real time, enabling farm owners to determine the status of their cattle.


2017 ◽  
Vol 2 (2) ◽  
Author(s):  
Mustari Mustari ◽  
I Made Sudana ◽  
Eko Supraptono

Penelitian ini termasuk penelitian pengembangan ( R & D ) yang bertujuan : (1) Mendesain model pembelajaran Teaching Factory yang valid dan efektif untuk meningkatkan kecakapan vokasional Merencana dan Menginstalasi Sistem Audio. (2) Mengetahui tingkat kevalidan dan kelayakan model pembelajaran Teaching Factory, (3) mengetahui tingkat keefektifan model pembelajaran Teaching Factory. Penelitian dilakukan dengan empat tahapan yaitu analisis pendahuluan, mendesain model, validasi dan evaluasi serta hasil produk akhir dengan menggunakan one group pretest postest control design. Subjek peneliti SMKN 1 Ampelgading Pemalang. Sumber data untuk kevalidan model dilakukan dengan metode angket. Instrumen yang digunakan adalah instrumen kevalidan yang terdiri dari desain model, silabus, RPP, bahan ajar dan instrumen evaluasi. Data untuk keefektifan diambil dari aspek soft skill hard skill dan environment skill selama proses pembelajaran. Metoda pengumpulan data yang digunakan meliputi lembar penilaian soft skill hard skill dan environment skill. Sedangkan analisis data menggunakan uji validitas, uji reliabelitas, uji daya beda, uji tingkat kesukaran, uji t dan uji z. Berdasarkan hasil analisis deskritif diketahui bahwa model pembelajaran Teaching Factory Merencana dan Menginstalasi sistem Audio telah dinyatakan valid dan layak oleh pakar ahli untuk digunakan. Peningkatan kemampuan soft skill pada Teaching Factory dilakukan dengan lembar observasi tahap I dan II dan dianalisis dengan N Gain, hasilnya terdapat peningkatan secara klasikal 28,21 % dengan N Gain 56,4 % kategori sedang. Dalam hal ini dapat disimpulkan bahwa model pembelajaran Teaching Factory efektif untuk meningkatkan kecakapan vokasional Merencana dan Menginstalasi Sistem Audio. This research includes research development (R & D) that aims: (1) Designing Teaching Factory model that is valid and effective for improving vocational skills Planning and Installing Audio Systems. (2) To know the level of validity and feasibility of Teaching Factory learning model, (3) to know the effectiveness level of Teaching Factory learning model. The research was conducted with four stages: preliminary analysis, model design, validation and evaluation, and final product result by using one group pretest postest control design. Subject of researcher SMKN 1 Ampelgading Pemalang. The data source for the validity of the model is done by questionnaire method. The instrument used is a validation instrument consisting of model design, syllabus, RPP, teaching materials and evaluation instruments. The data for for effectiveness is taken from the aspects of hard skills skill and environmental skill during the learning process. The data collection methods used include hard skill soft skill and environmental skill score sheets. While the data analysis using validity test, reliability test, different power test, difficulty test, t test and z test. Based on the results of descriptive analysis, it is known that Teaching Factory Learning Model of Planning and Installing Audio


2021 ◽  
Vol 14 (1) ◽  
pp. 11-22
Author(s):  
Sania Salsabila ◽  
Abd. Kholiq

During the Covid-19 pandemic that swept the world including Indonesia, and to improve students' critical thinking skills, it is necessary to have supporting media in the learning process as an edutainment website. This study intends to determine the validity of the edutainment website developed in physics lessons to improve student's critical thinking skills. The research method used is development research with the DDD-E model. This research was only limited to media development, and no practicality and effectiveness tests were carried out. In this study, the validity data were obtained from the results of validation by expert and were analyzed by descriptive quantitative using the category of Likert scale percentage. If the percentage of each aspect is ≥ 61%, then the edutainment website developed can be declared valid. The results of this study are the percentage of validity in the learning aspect of 90.30%, the material aspect of 90.56%, the media aspect of 88.65%, and the critical thinking aspect of 84.70%. Based on this, it can be concluded that the edutainment website is very valid so that it can be used as a physics learning media to improve students' critical thinking skills. The edutainment website can be an alternative learning media by utilizing information technology and hopefully in further research, it can apply edutainment website and perform practicality and effectiveness tests for learning both in class and distance learning


Author(s):  
Arfanny Hanum

<p><em>This study aims to identify problems in learning science at home during the Covid-19 pandemic that occurred in fifth grade students at SDN Peterongan in the 2019/2020 school year. The method used in this research is descriptive qualitative with a phenomenological approach. The data sources of this study were all fifth grade students, parents, and fifth grade teachers. The data collection technique was done by using questionnaires, interviews, and documentation studies. The data validity test used in this study was technical triangulation and source triangulation. Data were analyzed using the data analysis model Miles and Huberman. The results of this study indicate that student learning problems occur due to lack of interest and motivation of students and students have difficulty understanding concepts. Only 36% of students showed interest in online science learning, and 70% of students had difficulty understanding concepts. The problems that occur are caused by several factors. Based on these factors, efforts that can be made to solve learning problems experienced by students are to increase students' interest and motivation by choosing learning methods and media that make students interested and become more active, provide enrichment and remedial, and maintain communication with parents to monitor student learning difficulties at home.</em></p>


2018 ◽  
Vol 6 (1) ◽  
pp. 1
Author(s):  
Wiwik Akhirul Aeni ◽  
Ade Yusupa

The development of learning media model becomes a necessity for improving the quality of education in Indonesia. Following the development of technology and information, new models continue to be developed, one of which is comic. This study aims to develop a model of electronic comic (e-Comic) as a medium of learning. With the ADDIE development method, it is done through needs analysis, model design, prototype development, prototype implementatio (testing) and evaluation of prototype implementation results to the field. The result is a comic electronic model in which graphic-shaped graphics are highlighted to deliver learning materials in accordance with the applicable curriculum. The material is delivered in story form so the delivery is not rigid. Implementation of field trial prorotype obtained data that the user liked the model of this e-Comic learning media and feel like learning to read comics with digital format. The conclusion of the development of e-Comic model, innovative learning media, fun, effective and efficient, so as to increase the students' attention in understanding the subject AbstrakPengembangan model media pembelajaran menjadi kebutuhan untuk peningkatan kualitas pendidikan di Indonesai. Mengikuti perkembangan teknologi dan informasi, model-model baru terus dikembangkan dari waktu ke waktu. Komik yang dimaknai sebagai sebuah gambar kartun berteks mampu menyampaikan sebuah pesan dengan gaya yang ringan dan menyenangkan.Tujuan pembuatan model ini untuk membuat sebuah model berformat elektronik komik (E-komik) sebagai media pembelajaran menyampaikan materi pendidikan. Dengan metode pengembangan ADDIE, yang dimulai dengan kegiatan Analisis Kebutuhan, Desain/Perancangan Model, Development Prototype, Implementasi Prototype berbentuk ujicoba prototype ke user dan dilanjutkan dengan Evaluasi hasil implementasi prototype ke lapangan model Elektronik komik ini dikembangkan. Hasil dari pengembangan ini adalah sebuah model elektronik komik yang didalamnya berupa grafis berbentuk kartun ditonjolkan untuk menyampaikan materi-materi pembelajaran sesuai dengan kurikulum yang berlaku di sekolah. Materi disampaikan dalam bentuk cerita sehingga penyampaiannya tidak kaku. Implementasi ujicoba prorotype dilapangan diperoleh data bahwa user menyukai model media pembelajaran E-komik ini dan merasa belajar seperti membaca komik dengan format digital. Kesimpulan pengembangan model E-komik yang dilakukan menjadi salah satu jawaban atas kebutuhan terhadap media pembelajaran yang inovatif, menyenangkan, efektif dan efisien, sehingga dapat meningkatkan perhatian siswa dalam memahani mata ajar. Untuk itu penerapannya dapat dilakukan secara bertahap pada SMA tertentu.


Vidya Karya ◽  
2019 ◽  
Vol 33 (2) ◽  
pp. 154
Author(s):  
Siti Nor Fatmah ◽  
Mastuang Mastuang ◽  
Abdul Salam

Abstract. The low level of science process skills (KPS) of students has an impact on the difficulty to understand physics learning. For this reason, a development research which aimed to produce and describe the feasibility of learning devices based on learner autonomy that are able to train science process skills was carried out. The research used a development model of ADDIE. The research subjects were 26 eleventh graders of science class-3 (class XI IPA-3) of Public Senior High School (SMAN) 6 Banjarmasin. Data collection techniques were carried out by observation and tests. Technical data analysis was carried out in quantitative and qualitative descriptive ways. The results showed that the learning devices developed were: (1) valid according to academician’s assessment with very good categories, (2) practical according to the implementation of lesson plan (RPP) with very good category, (3) Effective according to the gain score achieved with moderate category, and (4) result in students’ Science Process Skills (KPS) achievement with skilled category. Thus, it can be concluded that the learning devices based on learner autonomy to train science process skills developed are feasible to be used in learning. Keywords: learner autonomy, science process skills. Abstrak. Rendahnya keterampilan proses sains (KPS) peserta didik berdampak pada kesulitan memahami pembelajaran fisika. Untuk itu dilakukan penelitian pengembangan yang bertujuan untuk menghasilkan perangkat pembelajaran berbasis learner autonomy yang mampu melatihkan keterampilan proses sains, sekaligus mendeskripsikan kelayakannya. Model pengembangan yang digunakan adalah model ADDIE. Subjek uji coba penelitian ini adalah 26 peserta didik kelas XI IPA 3 SMAN 6 Banjarmasin. Teknik pengumpulan data dilakukan dengan observasi dan tes. Teknis analisis data dilakukan secara deskriptif kuantitatif dan kualitatif. Hasil penelitian menunjukkan bahwa perangkat pembelajaran yang dikembangkan: (1) valid berdasarkan penilaian akademisi dengan kategori sangat baik, (2) praktis berdasarkan keterlaksanaan RPP yang berkategori sangat baik, (3) Efektif berdasarkan perolehan gain skor yang berkategori sedang, dan (4) Pencapaian KPS siswa berkategori terampil. Dengan demikian dapat disimpulkan bahwa perangkat pembelajaran berbasis learner autonomy untuk melatihkan keterampilan proses sains layak digunakan dalam pembelajaran. Kata kunci: Learner Autonomy, Keterampilan Proses Sains.


Author(s):  
Endang Sri Markamah ◽  
St. Y. Slamet ◽  
Rukayah Rukayah ◽  
Retno Winarni

<p><em>The objectives of this research </em><em>we</em><em>re: (1) to describe students</em><em>’</em><em> and lecturers</em><em>’ </em><em>needs </em><em>on </em><em>poetry and drama </em><em>appreciative textbook</em><em>, (2) to describe the development of textbook model (3) to find the effectiveness of textbook </em><em>model</em><em> 4) to describe textbook dissemination. The type of research used was research </em><em>and </em><em>development. Research was done through 4 stages: (1) </em><em>exploration</em><em>, (2) model development, (3) model testing, (4) dissemination. Exploration stage used qualitative descriptive approach. Data </em><em>was collected through</em><em> in-depth interviews, observation, documentation, and questionnaires. Data analysis technique </em><em>was </em><em>interactive analysis model. </em><em>M</em><em>odel testing </em><em>was done through </em><em>experimental research. The results of this research were: (1) </em><em>the </em><em>exploration stage showed that the </em><em>poetry and drama learning </em><em>textbook used by </em><em>Elementary Teacher Education Program (ETEP) </em><em>student</em><em>sin </em><em>Surakarta </em><em>did </em><em>not </em><em>meet the </em><em>student</em><em>s’</em><em> and lecturer</em><em>s’ need</em><em>, (2) model development </em><em>stage producedappreciative poetry and drama </em><em>textbook through preliminary field testing; (3) </em><em>model </em><em>testing phase </em><em>was to test</em><em> effectiveness </em><em>of the textbook used </em><em>t-test </em><em>non-</em><em>independent technique</em><em>.It was </em><em>obtained t</em><em><sub>obtain</sub></em><em>of </em><em>23 </em><em>and </em><em>t</em><em><sub>table(</sub></em><em><sub>90; 0.05)</sub></em><em>of </em><em>1.67. Thus, t</em><em><sub>obtained</sub></em><em> (23)&gt; t<sub>table</sub> (1.67) </em><em>which meant that</em><em> the hypothesis was accepted (Ho was rejected). In conclusion, the </em><em>Appreciative</em><em> Poetry and Drama textbook model was effectively improve students' poetry and drama appreciation skills. Dissemination was done through national seminars, article writing in international journals, as well as the publishing of an Integrative-thematic Textbook of Poetry and Drama Learning</em><em> with ISBN</em><em>.</em></p>


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