Claim Missing Document
Check
Articles

Found 39 Documents
Search

Scientific literacy and science learning achievement at junior high school Jufrida Jufrida; Fibrika Rahmat Basuki; Wawan Kurniawan; Miko Danu Pangestu; Olva Fitaloka
International Journal of Evaluation and Research in Education (IJERE) Vol 8, No 4: December 2019
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (327.904 KB) | DOI: 10.11591/ijere.v8i4.20312

Abstract

Scientific literacy is the ability which must be owned by the students to analyze and apply the concept of science in solving daily life problem. This research aims to know the correlation between scientific literacy and science learning achievement at State Junior High Schools. This research used a quantitative approach with correlational type. The population of this research were 428 grade IX students at State Junior High Schools within the District of Jaluko Muaro Jambi. The samples was 138 students. The technique of selecting samples was random sampling. The instruments used were the test of science literacy and the test of science learning achievement. Hypothesis test was conducted by using rank spearman correlation test with the assistance of SPSS 21. The results show the average score of scientific literacy is 33.7 (medium category) and the average score of science learning achievement is 21.5 (very low category). The result of the correlation test obtains Sig value 0.00 then Ho is rejected. It can be concluded that there is a significant correlation between scientific literacy and science learning achievement at State Junior High School within Muaro Jambi District. Science learning is expected to develop students’ science literacy so that it can improve science learning achievement.
Students’ attitude and motivation in mathematical physics Jufrida Jufrida; Wawan Kurniawan; Astalini Astalini; Darmaji Darmaji; Dwi Agus Kurniawan; Weni Angra Maya
International Journal of Evaluation and Research in Education (IJERE) Vol 8, No 3: September 2019
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (323.43 KB) | DOI: 10.11591/ijere.v8i3.20253

Abstract

Attitude is one aspect that needs to be considered both for learning activities or learning objects. This study aims to determine the attitudes and motivations of students in mathematics physics subjects. The sample used was 100 students who had studied the Mathematics Physics course. This study employed quantitative research methods with correlational research design. Respondent was gathered by purposive sampling method. The research instruments used were attitude questionnaires in mathematical physics and motivational questionnaires. The study found that there is a significant relationship between attitudes and motivation of students in mathematics physics learning.
Multimedia physics practicum reflective material based on problem solving for science process skills Wawan Kurniawan; Darmaji Darmaji; Astalini Astalini; Dwi Agus Kurniawan; M Hidayat; Nugroho Kurniawan; Linda Zaenati Nur Farida
International Journal of Evaluation and Research in Education (IJERE) Vol 8, No 4: December 2019
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (300.751 KB) | DOI: 10.11591/ijere.v8i4.20258

Abstract

Purpose: This study aims to determine the differences in science process skills in each class in the Physics Education Study Program. Methodology: This research is a quantitative study with a comparison design. The research sample used amounted to 108 students with details of 54 control class students who used conventional guidebooks, while the control class totaling 54 students used a science process skill guide. The research data was obtained from observation activities using observation sheets of science process skills which were analyzed using descriptive statistics and inferential statistics. Finding: The results showed that there were significant differences in the mastery of science process skills of students seen from the value of the average mastery of science process skills of students using guidebooks based on science process skills. The experimental class has an average science process skill that is better than the control class.
Improving the Response Time of Online Letter Management Application Users: an Application of Social Representation Theory of Shame Jefri Marzal; Wahyu Budiman; - Adrefiza; Benetika F. Hutabarat; Wawan Kurniawan
JOIV : International Journal on Informatics Visualization Vol 5, No 1 (2021)
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/joiv.5.1.442

Abstract

One of the most important and potential problems encountered in an official online letter management application is the recipients' late response. This action research aims to improve the recipients' response time and determine the central core of shyness according to response time categories: less than 24 hours (green zone); between 24 hours to 48 hours (orange zone); and more than 48 hours (red zone) in managing formal online letter management system at Jambi University. Using the social representation theory of shyness as the basis of action adopted from Moscovici theory [1], it is hypothesized that response time displaying will impact response time improvement. A survey questionnaire distributed to 129 respondents showed a significant improvement in the participants' response time, respectively, in cycles 1 and 2. The zone group increased percentage sed from 22.44% to 52.49 % in the first cycle, and it ultimately raised to 62.38% at the end of the second cycle. Such an increase might be due to the users' efforts to avoid the level of shyness, which were classified into: (1) slow to respond and (2) personal or work unit late response time – both marked in red. It is recommended that social shyness incorporated in improving response time in a formal online letter can be further implemented with other social and psychological parameters. The application will illustrate computer systems' interaction on social society to implement regulations both in institutions and in government.
Students’ perceptions of electronic’s module in physics practicum Darmaji Darmaji; Dwi Agus Kurniawan; Astalini Astalini; Wawan Kurniawan; Khairul Anwar; Artha Lumbantoruan
Journal of Education and Learning (EduLearn) Vol 13, No 2: May 2019
Publisher : Intelektual Pustaka Media Utama

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (292.72 KB) | DOI: 10.11591/edulearn.v13i2.13005

Abstract

This study aims to determine the views of students majoring in mathematics education and natural science faculty of teacher training and education science at Universitas Jambi to use electronic’s module in physics practicum which is based on science process skills. The study involved 117 students majoring in mathematics education and science which consists of 59 students of physical education and 58 students of mathematics education. This research is descriptive quantitative research in order to obtain information mean (M), median (Me), mode (Mo), percentage, the range of the maximum value and the minimum value. Data was collected by using questionnaires and interviews. Based on the research results from students’ perceptions of physical education in good category at 64.4% while the student's perception of mathematics education in good category amounting to 55.2%.
Virtual Laboratory Based Guided Inquiry: Viscosity Exsperiments Wawan Kurniawan; Jufrida Jufrida; Fibrika Rahmat Basuki; Rima Ariani; Olva Fitaloka
JIPF (Jurnal Ilmu Pendidikan Fisika) Vol 4, No 2 (2019): September 2019
Publisher : STKIP Singkawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (661.292 KB) | DOI: 10.26737/jipf.v4i2.1069

Abstract

This study aims to develop a virtual laboratory (Vir-lab) based guided inquiry on viscosity experiments and know the students' perceptions of the products developed. This study was a research and development using 4D model that consists of four stage: define, design, develop, disseminate. The participants were two material experts, two media experts, and 43 students. Data collection used expert assessment sheet and student response questionnaire. The data were analyzed descriptively. The result of this study was a Vir-lab which was packaged in e-book form with 3D effects. The activities in the Vir-lab are designed based on the syntax of guided inquiry. The Vir-lab contains goals, problem formulations, theories, hypotheses, tutorial videos, virtual experiments, experimental data, data analysis, results, and conclusions. The results of the material expert obtained a score of 45 with a very good category and media experts obtained a score of 66 with a very good category, and the results of the students' perception test obtained a score of 60.65 with a very good category. The conclusion of this study shows that the Vir-lab is valid and suitable for use as a medium for learning physics.
Description of Scientific Normality, Attitudes of Investigation and Interested Career On Physics in Senior High School Astalini Astalini; Dwi Agus Kurniawan; Deti Kurnia Sari; Wawan Kurniawan
JIPF (Jurnal Ilmu Pendidikan Fisika) Vol 4, No 2 (2019): September 2019
Publisher : STKIP Singkawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26737/jipf.v4i2.885

Abstract

The purpose of this study was to determine the description of students' attitudes towards physics in Senior High School 8 Jambi City of Indonesia. This research is quantitative-qualitative research with survey research procedures. The subjects of this study were 170 students. The instruments used were questionnaires and interview sheets. Quantitative data analysis using descriptive statistics while qualitative data analysis using data analysis techniques model Miles and Huberman. The results of the 3 aspects of attitude indicators discussed in this study are on the indicator of normality of scientists as much as 60% are categorized quite good. While the attitude towards investigation in physics is 51% in the good category. Then in the indicator of interest in a career in the field of physics as much as 58% of students are categorized well.
Pengenalan Bahasa Isyarat dengan Metode Segmentasi Warna Kulit dan Center of Gravity Wawan Kurniawan; agus Harjoko
IJEIS (Indonesian Journal of Electronics and Instrumentation Systems) Vol 1, No 2 (2011): October
Publisher : IndoCEISS in colaboration with Universitas Gadjah Mada, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (958.662 KB) | DOI: 10.22146/ijeis.1964

Abstract

AbstrakBahasa isyarat (sign language) merupakan bahasa yang menggunakan gerakan tangan dan gerak bibir untuk menjelaskan sebuah arti. Untuk itu perlu adanya dibuat suatu sistem yang dapat menghubungkan penderita cacat tunarungu dengan manusia normal. Penelitian aplikasi pengenalan bahasa isyarat secara real-time banyak mengalami kendala, faktor-faktor yang mempengaruhi antara lain, besarnya tingkat kemiripan data citra latih, proses pelacakan (tracking) terutama pada segmentasi objek dengan latar belakang (background) sehingga hasil capture tidak terinterprestasikan maksimal.Penelitian ini menggunakan metode pelacakan (tracking) yakni segmentasi warna kulit dan center of gravity (COG) berhasil melacak (tracking) gerakan tangan dari setiap frame, serta metode deteksi tepi dan PCA sebagai ekstraksi ciri, dan pengenalannya menggunakan pendekatan jaringan syaraf tiruan  back propagation.Hasil dari pengujian sistem ini dapat mengenali 26 huruf isyarat, tingkat akurasi pengenalan isyarat tangan 83,43%. Pada berbagai kondisi pencahayan dan jarak objek ke kamera, system ini mengalami perubahan tingkat pengenalan sehingga diperlukan jarak ideal dan tingkat penerangan yang baik. Aplikasi ini perlu adanya pengembangan lebih lanjut terutama pada proses pelacakan dan identifikasi.Kata kunci—Pelacakan, Ekstraksi ciri, Pengenalan isyarat tangan  AbstractSign language is a language that uses hand gestures and lip movements to explain the meaning. For that there needs to be created a system that can connect the disabled with normal human hearing impairment. The study of sign language recognition applications in real-time experience any problems, the factors that affect, among others, high level of similarity of training image data, the process of tracking, especially on the segmentation of objects with the background so the results do not capture the maximum interpretation. This research uses the tracking method the skin color segmentation and center of gravity (COG) managed to track the hand movements of each frame, as well as edge detection method and the PCA as feature extraction, and familiarity with using artificial neural network approach to back propagation.The results of testing this system can recognize 26 letters of recognition cues with recognition accuracy 83.43%. In a variety of lighting conditions and object distance to the camera, the system is experiencing changes in the level of recognition so that the required distance of an ideal and a good level of lighting. This application is the need for further development especially in the process of tracking and identification. Keywords— Tracking, Feature extraction, Hand gesture recognition
IDENTIFIKASI SPEECH RECOGNITION MANUSIA DENGAN MENGGUNAKAN AVERAGE ENERGY DAN SILENT RATIO SEBAGAI FEATURE EXTRACTION SUARA PADA KOMPUTER Wawan Kurniawan
Biospecies Vol. 9 No. 1 (2016): Januari 2016
Publisher : Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Abstrak Biometric recognition merupakan sistem pengenalan  atau identifikasi seseorang  berdasarkan karakteristik  biologis khusus yang dimiliki oleh orang tersebut, fungsinya  untuk sistem keamanan  dengan  mengenali identitas seseorang. Speech recognition merupakan suatu  proses yang dilakukan  komputer untuk mengenali kata yang diucapkan oleh  seseorang tanpa mempedulikan identitas orang terkait. Pola peningkatan dan penurunan signal suara merupakan ciri khas (feature extraction) dari seseorang dalam hal berbicara , sehingga antara energy rata-rata (Average Energy) bunyi  dan lamanya ambang diam  (Silent Ratio) merupakan faktor yang terpenting untuk mendeteksi karakter dan pola suara seseorang. Sedangkan proses algoritma Fourier Frequency Transform (FFT) digunakan untuk mengcirikan komponen-komponen data pada domain frekuensi. Hasil pengujian yaitu menunjukkan bahwa suara seseorang yang direkam dengan durasi dua detik kemudian dilakukan pembagian sinyal gelombang selama 0,2 detik diperoleh besarnya Average energy adalah 2.323 dan proses Silent ratio sebesar 0.249. Kedua nilai tersebut merupakan feature extraction suara seseorang yang dapat dikenali oleh komputer.   Kata kunci: Avarege Energy, Fourier Frequency Transform, Speech recognition, Silent Ratio
Biodiversitas Ikan Di Refuge Area Sungai Kapas Tengah Hutan Harapan Jambi Sebagai Database Aplikasi Go Iwak TIA WULANDARI; Tedjo Sukmono; Wawan Kurniawan
Biospecies Vol. 13 No. 1 (2020): Biospecies Vol. 13 No. 1, January 2020
Publisher : Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (509.792 KB) | DOI: 10.22437/biospecies.v13i1.7945

Abstract

Penelitian ini bertujuan untuk mengetahui biodivesitas ikan di Refuge area Sungai Kapas bagian Tengah Butan Harapan Jambi. Penelitian telah dilakukan pada Juli-Agustus 2019 di Sungai Kapas Hutan Harapan Jambi. Penentuan refuge area dilakukan dengan menyusuri Sungai Kapas bagian tengah untuk menemukan anak-anak sungai yang sudah terputus dengan Sungai kapas,, serta bagian sungai kapas serta areal lubuk di Sungai Kapas. Terdapat 4 Refufe area yang dijadikan stasiun yaitu Stasiun 1 Putusan Marihot, Stasin dua Muara Bato, Stasiun 3 Lubuk Kapas, dan Stasiun 4 Lubuk Bato. Pengambilan sampel menggunakan jala lempar , seruo, dan jaring insang, serta tray net. Hasil Penelitian didapatkan 375 ekor ikan, melputi 50 spesies, 29 genus, dan 14 famili, serta 6 ordo. Pada stasiun 2 (Putusan Marihot) ditemukan paling banyak jumlah ikan 151 ekor, diiukuti stasin 3 (Lubuk Kapas) 111 ekor, stasiun 3 (Muara Bato) 71 ekor dan Stasiun 4 ( Lubuk Bato ) 42 ekor. Jumlah spesies setiap stasiun 1 (8 spesies), Stasiun 2 (16 spesies), (29 spesies), stasiun 4( 18 spesies).