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All Journal Oxygenius Journal Of Chemistry Education Jurnal Pengabdian UNDIKMA Sciening : Science Learning Journal Charm Sains : Jurnal Pendidikan Fisika

Djeli Alvi Tulandi

Universitas Negeri Manado

Author-ID : 6118254

Religion Agriculture, Biological Sciences & Forestry Humanities Chemistry Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Nursing Physics Public Health Social Sciences Other

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PENGEMBANGAN PANDUAN PRAKTIKUM ONLINE MENGGUNAKAN SMARTPHONE BERBASIS APLIKASI PHYPOX Shelin Novitasari; Djeli Alvi Tulandi; Jimmy Lolowang
Charm Sains: Jurnal Pendidikan Fisika Vol 2 No 1 (2021): FEBRUARI
Publisher : Program Studi Pendidikan Fisika Jurusan Fisika Fakultas Matematika, Ilmu Pengetahuan Alam, dan Kebumian (FMIPAK), Universitas Negeri Manado

In today's digital era, the learning system has undergone many changes. Online-based learning has become one of the most important learning models today and one of the learning models that utilize online media such as Blended learning or the use of smartphones. The purpose of this research is to develop an online laboratory guide on pendulum material. The stages that have been carried out in this study: Designing an online laboratory activity guide using a phyphox application-based cellphone. This software development is carried out based on the research and development research collaboration of Research and Development (R & D) including: Analysis / Defining Stage, Design Stage, Development Stage, Testing and Evaluation Phase. The results of the study recommend that the online practicum guide using a phyphox application-based handphone on pendulum material is suitable for optimizing practicum activities in the Physics Department. This collaborative research between lecturers and students can also improve the academic climate, through optimizing lecturer-student interactions.

HUBUNGAN PENGUASAAN KONSEP FISIKA DAN BIOLOGI DENGAN KONTEKS SIKLUS AIR BERDASARKAN CAPAIAN PENGUASAAN KONSEP DAN KEMAMPUAN MENGIDENTIFIKASI MASALAH DI LAPANGAN Tirsa Mumek; Christophil Medellu; Djeli Alvi Tulandi
Charm Sains: Jurnal Pendidikan Fisika Vol 2 No 1 (2021): FEBRUARI
Publisher : Program Studi Pendidikan Fisika Jurusan Fisika Fakultas Matematika, Ilmu Pengetahuan Alam, dan Kebumian (FMIPAK), Universitas Negeri Manado

Utilizing the surrounding environment as source of lessons and relate them with the lessons that studied by the student in school are still rarely done nowadays, which make the students not really understand the relation of context and concept. The purpose of this study is to describe the relation between water cycle context with physics concept and other subject base on the result of concept mastery and the ability to identify the problems in the field. The results showed that the correlation between the physics mastery of phase transition with biology concept of evapotranspiration of 8 students is 0.59, the correlation between observations in field to identify the sewage (solid and liquid) on the river with the sewage treatment technology and water pollution control is 1, and correlation between water cycle concept charts and its components with the students ability to identified water sources in the village, neighbourhood and in other places is 0,89.

EFEKTIVITAS PENDEKATAN SCIENTIFIC DENGAN METODE OBSERVASI DAN DISKUSI DALAM MENINGKATKAN CAPAIAN BELAJAR DAN KINERJA SISWA KELAS VII SMP KRISPA SILIAN Inggrit Octavia Akay; Djeli Alvi Tulandi; Jimmy Lolowang
Charm Sains: Jurnal Pendidikan Fisika Vol 2 No 1 (2021): FEBRUARI
Publisher : Program Studi Pendidikan Fisika Jurusan Fisika Fakultas Matematika, Ilmu Pengetahuan Alam, dan Kebumian (FMIPAK), Universitas Negeri Manado

The first step to learn science is through observation and measurement as a part of the observation. The research was conducted with the aim to improve the processes and student learning outcomes by implementing the teaching through the application of a scientific approach to the method of observation and discussion on the subject of "object IPA and observations". The research was conducted on a class VII SMP Negeri 1 Airmadidi 2015-2016 school year the number of students 30 people. The study design used is a Class Action Research or Classroom Action Research model of John Elliot. The data analysis technique used is descriptive analysis techniques, where the data described is data about students' ability to master scientific concepts and data on student engagement during the learning process takes place. To obtain the necessary data in this study used the instrument in the form of Student Worksheet (LKS) and tests to determine the level of student mastery of concepts. Result reflections 1 suggested need to proceed to the second cycle because of the 30 students there are 17 students who have not been thoroughly studied. Through learning activities and teaching the second cycle showed that all students have been thoroughly studied and an increase in average student learning outcomes of 64.83 (first cycle) to 74.67 (second cycle). Results of this study concluded that the application of a scientific approach to the method of observation and discussion on the objects of material science and observations can improve the process and the achievements of students of class VII SMP Negeri 1 Airmadidi.

ANALISIS KEMUNGKINAN TERJADINYA KONDENSASI PADA PIPA ALIR UAP DARI SEPARATOR KE SCRUBBER BERDASARKAN MODEL PENURUNAN TEKANAN PADA PLTP AREA LAHENDONG UNIT 5 & 6 Brenda Bella Gunena; Djeli Alvi Tulandi; Jeferson Polii
Charm Sains: Jurnal Pendidikan Fisika Vol 2 No 1 (2021): FEBRUARI
Publisher : Program Studi Pendidikan Fisika Jurusan Fisika Fakultas Matematika, Ilmu Pengetahuan Alam, dan Kebumian (FMIPAK), Universitas Negeri Manado

Geothermal production in steam turbines must pay attention to the quality of the incoming steam because if their steam is condensed it will affect the effectiveness of the turbine, so the purpose of this study is to examine the possibility of condensation in the pipe steam flow. The method used in this research is descriptive, where each parameter measurement is calculated using Microsoft Office Excel programming steam prog and using the Harrison and Friston equation which calculates per segment of pipe length (3 m) and calculates the vapor fraction (x) and pipe length in a graph which determines the final result of this study. The graph results between the vapor fraction and the length of the pipe show that the vapor fraction value along the steam pipe continues to increase until 0.9997 (99.98%) almost becomes 1 (100%) meaning that there is no condensation in the steam pipe from the separator to the scrubber.

EFEKTIVITAS LABORATORIUM VIRTUAL SEBAGAI MEDIA PEMBELAJARAN PADA EKSPERIMEN VISKOSITAS Vebrina Bunga Langngan; Djeli Alvi Tulandi; Theresje Mandang
Charm Sains: Jurnal Pendidikan Fisika Vol 2 No 2 (2021): JUNI
Publisher : Program Studi Pendidikan Fisika Jurusan Fisika Fakultas Matematika, Ilmu Pengetahuan Alam, dan Kebumian (FMIPAK), Universitas Negeri Manado

Limited laboratory equipment and the current pandemic Covid-19 are the causes of practicum activities not running optimally.to overcome these obstacles, the virtual laboratory can be used as a medium for distance learning. This study aims to determine the effectiveness of using virtttual laboratories as learning media in viscosity experiments. This research is a pre-experimental study with one group pretest-posttest design. The research subjects were semester I Students of the Departement of Physics, Manado State University 2020/2021. Retrieval of data using test instruments in the form of essays and science process skills and affective using rubrics. The average preest results were 43,75 and posttest results were 84,38. The average results of the assessment of science process skills are in good criteria (66%-79%) and very good criteria (80%-100%) while affective assessments are very good criteria (80%-100%). For each student, there were 10 students in high N-Gain category with a percentage of 62,5% and 6 students in the moderate N-Gain category with a percentage of 37,5%. The results of the average N-Gain percentage of 16 students was 74,9%. The results of this study indicate that use of a virtual laboratory is quite effective in being used as a learning medium in viscosity experiments.

Perbandingan Suhu pada Ruang Terbuka Hijau (RTH) dan non RTH di Area Megamas Manado Djeli Alvi Tulandi
Charm Sains: Jurnal Pendidikan Fisika Vol 3 No 1 (2022): FEBRUARI
Publisher : Program Studi Pendidikan Fisika Jurusan Fisika Fakultas Matematika, Ilmu Pengetahuan Alam, dan Kebumian (FMIPAK), Universitas Negeri Manado

This study was conducted with the aim of knowing changes in temperature in the urban forest green open space (RTH) area and in non-green open space areas in the Megamas Manado complex. This study uses a descriptive analytical design. In this study, there are microclimate variables and the determination of the sample using purposive sampling method. This study aims to test the hypothesis whether it is true that the temperature in the green open space area is lower than the temperature in the non green open space area. There are three data collection points, namely in the urban forest area, the Mega Mall area, and the Marina-2 Manado area. Based on the average temperature value, it shows that the temperature in the green open space is lower than the temperature in the non green open area. The statistical test results also state that there is a significant (significant) difference between the temperature in the green open space and the temperature in the non green open space. Therefore, this research concludes that the Green Open Space Area (RTH) can reduce solar energy, so that the temperature in the green open space area is lower than the temperature in the non-RTH area.

EFEKTIVITAS PEMBELAJARAN EKSPLORATIF TENTANG KONSEP DAN PROSES FISIKA DI PERMUKAAN AIR DANAU TONDANO Djeli Alvi Tulandi; Maria Resbal
Charm Sains: Jurnal Pendidikan Fisika Vol 3 No 3 (2022): OKTOBER
Publisher : Program Studi Pendidikan Fisika Jurusan Fisika Fakultas Matematika, Ilmu Pengetahuan Alam, dan Kebumian (FMIPAK), Universitas Negeri Manado

Explorative learning about the concepts and processes of physics on the water surface of Lake Tondano is an example of the process of learning physics by utilizing the natural surroundings as a learning object. The purpose of this study was to determine the effectiveness of exploratory learning about the concepts and processes of physics on the water surface of Lake Tondano. The method used in this research is pre-experimental research with one group pretest-posttest design. This research was conducted through three stages. The first stage is to give a pretest to measure the students' initial abilities. The second stage is to give treatment (treatment) through exploratory learning and the third stage is to give a posttest as a learning evaluation. The research subjects are 2nd-year students at the Manado State University Physics Education Study Program 2021/2022. After obtaining the research data that was processed statistically with the help of SPSS 22.0 for windows. The average pretest result is 51.00 and the posttest result is 90.62. Obtaining N-Gain scores from each student, there are as many as 13 students (overall) in the high N-Gain category with a percentage of 100%. The results of this research that explorative learning about physics concepts and processes on the water surface of Lake Tondano is effectively applied in the physics learning process.

Efektivitas Pembelajaran Eksploratif tentang Konsep dan Proses Fisika pada Dinamika Harian Iklim Mikro di Permukaan Lahan Bervegetasi dan Tidak Bervegetasi Natasha Khaterina Marselina Etwiory; Treesje Katrina Londa; Djeli Alvi Tulandi
Charm Sains: Jurnal Pendidikan Fisika Vol 3 No 2 (2022): JUNI
Publisher : Program Studi Pendidikan Fisika Jurusan Fisika Fakultas Matematika, Ilmu Pengetahuan Alam, dan Kebumian (FMIPAK), Universitas Negeri Manado

Explorative learning about the concepts and processes of physics in the daily dynamics of the microclimate on the surface of vegetated and non-vegetated soil is an example of the physics learning process by utilizing the natural surroundings as a learning object. The purpose of this researh was to determine the effectiveness of explorative learning in analyzing the concepts and processes of physics in the daily dynamics of the microclimate on the surface of vegetated and non-vegetated land. This research used a pre-experimental method one group pretest-posttest design. The research subjects are third semester students of Physics Education, Manado State University 2021/2022. Data collection is in the form of observation tables/exploratory fromats. After obtaining the data, the research results were statistically processed using the SPSS 22.0 application for windows. The pretest average result was 47.80 and increased to 89.70 in the posttest average. Obtaining N-Gain scores from student, there are 8 students in the high N-Gain category with a percentage of 80% and 2 students in the medium N-Gain category with a percentage of 20%. The average result of the N-Gain percentage of 10 students is 80.15%. The results of this reseacrh indicate that explorative learning is effectively used in exploring physical concepts and processes in the daily dynamics of the microclimate on vegetated and non-vegetated soil surfaces.

PENGARUH MODEL DISCOVERY LEARNING TERHADAP HASIL BELAJAR SISWA DI SMP NEGERI 2 TABUKAN UTARA Priscicilia A. D. Karaeng; Djeli A. Tulandi; Marianus
Charm Sains: Jurnal Pendidikan Fisika Vol 3 No 3 (2022): OKTOBER
Publisher : Program Studi Pendidikan Fisika Jurusan Fisika Fakultas Matematika, Ilmu Pengetahuan Alam, dan Kebumian (FMIPAK), Universitas Negeri Manado

The Discovery Learning model is a series of learning activities that maximally involve all students' abilities to search and investigate systematically, critically, and logically. so, they can find their own knowledge, attitudes, and skills as a form of behavior change. The purpose of this study was to determine the effect of the Discovery Learning Model on Student Learning Outcomes at SMP Negeri 2 Tabukan Utara. The method used in this research is pre-experiment using one group pretest-posttest design. The sample of this research is the students of class VIII, totaling 16 people. The results of the Paired Sample Test analysis with the help of the SPSS program, it is known that the significant value is 0.000, this means less than 0.05, then H0 is rejected and Ha is accepted. These results indicate that there is an average difference between pre-test and post-test learning outcomes, which means that there is an effect of using the Discovery Learning model on student learning outcomes.

EFEKTIVITAS EKSPERIMEN PADA PEGAS MENGGUNAKAN APLIKASI PHYPHOX SEBAGAI MEDIA PEMBELAJARAN Swita Langi; Djeli Alvi Tulandi; Sixtus Iwan Umbo
Charm Sains: Jurnal Pendidikan Fisika Vol 3 No 3 (2022): OKTOBER
Publisher : Program Studi Pendidikan Fisika Jurusan Fisika Fakultas Matematika, Ilmu Pengetahuan Alam, dan Kebumian (FMIPAK), Universitas Negeri Manado

E-practicum is a solution for schools as well as in basic practicums in anticipating learning from home due to the impact of the Covid-19 pandemic. One good application to use is the use of the Phyphox application as a learning medium. This study aims to determine the effectiveness of the Phyphox application in the spring experiment as a learning medium. This research is pre-experimental research with one group pretest-posttest research design. The research subjects are students of the seventh semester of the Physics Department, Manado State University 2020/2021. Collecting data using tests with test instruments in the form of essays and science process skills using rubrics. The average pretest result was 29.50 which increased to an average posttest result of 93.26. The average results of the process skills assessment and affective assessment are in good criteria (66-79%) and very good criteria (80-100%). Obtaining N-Gain scores from each student, there were 19 students in the high N-Gain category with a percentage of 95% and 1 student in the medium N-Gain category with a percentage of 5%. The result of the average N-Gain percentage of 20 students is 89.9%. The results of this study indicate that the use of the Phyphox Application in the spring experiment is effective as a learning medium

Co-Authors Brenda Bella Gunena Christophil Medellu Fitrianingrum, Aufa Maulida Heldi Angelia Gavrilla Ngkunda Inggrit Octavia Akay Jeane V. Tumangkeng Jeferson Polii Jimmy Lolowang Kamaruddin Kamaruddin Maria Resbal Marianus Milania Suwu Natasha Khaterina Marselina Etwiory Nofrince Pangumbahas Patricia Mardiana Silangen Pranata Viki Karamoy Priscicilia A. D. Karaeng Rende, Jeane Cornelda Shelin Novitasari Sixtus Iwan Umbo Swita Langi Theresje Mandang Tineke Makahinda Tirsa Mumek Treesje K. Londa Vebrina Bunga Langngan

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