bluuebunny/crossref_metadata_2025_split huggingface dataset:
Preliminary research of networked-based inquiry model development to improve 21st-century competencies of students on physics learning in senior high school
Authors: Novitra Fuja , Festiyed  , Yohandri  
Published: May 2021

Abstract
This research is based on the important of developing a learning model that emphasizes the balance between the scientific approach and use of technology to develop students’ 21st-century competencies. One of learning models that support the goal is inquiry learning which is integrated ICT at infusing level. The model relies on digital technology to provide opportunities for students to investigate scientifically and authentically through information search, problem-solving, and digital collaboration and communication. This study aims to describe the results of needs and context analysis, review of relevant literature, and designing the theoretical framework and concepts for Networked-based Inquiry model development. This research was research and development using the Plomp model. This research has been done at preliminary research that consists of need and context analysis, literature review, developing conceptual theory. The results of needs and context analysis indicates that 21st-century competencies of students is still relatively low, and the integration of ICT in learning physics has enormous potential. The phase review literature revealed that inquiry learning model can improve students’ critical thinking, creative thinking, collaboration, and communication. Then, networked learning can accommodate the use of ICT in infusing level. These findings indicates that the development of Networked-Based Inquiry models can be a solution in accommodating students to develop 21st-century competencies which integrated with digital literacy.
Practicality of student worksheets science based on problem based learning models with the theme of the motion in life using integrated connected type 21st century learning
Authors: Marshel J , Ratnawulan  , Fauzi A 
Published: May 2021

Abstract
The problems in the field that are obtained are in accordance with the preliminary analysis that has been carried out before, especially in the field of science, namely learning that is not integrated, to overcome these previous researchers have developed teacher books and student books with thematic integrated learning in the 21st century, but there is a need for integrated learning Student Worksheet 21st century which supports the implementation of teacher books and student books to help students carry out practicum so that the Student Worksheet is used more optimally in facing the challenges of the 21st century. Student Worksheet used in schools is still not in accordance with the character of 21st-century education (4C) where Natural Sciences Student Worksheet has not been seen Critical thinking skills in problem-solving that can improve the ability of students to think at high levels (HOTS), and not be able to put forward creative ideas of students conceptually and practically. The learning process is still teacher-centred with the lecture method so that students are less active and do not have the opportunity to build knowledge independently. To use this Integrated Natural Sciences Student Worksheet, it is necessary to conduct development research. The purpose of developing research is to see the practicality of Integrated Science Student Worksheet assisted by the Problem Based Learning model with the theme of motion in life using the Connected type which is integrated 21st-century learning. The data collection instrument consists of the preliminary research stage instrument, the practicality stage instrument. The results showed that the Integrated Natural Sciences Student Worksheet showed a practical category, so it could be concluded that the Integrated Science Student Worksheet was assisted by the Problem Based Learning model with the theme of motion in life using the Connected type integrated 21st century learning in the practical category.
Validity and practicality of interactive multimedia based on cognitive conflict integrated new literacy on thermodynamic and mechanical waves material for class xi high school students
Authors: Arifin F A , Mufit F , Asrizal  
Published: May 2021

Abstract
The reality in the school shows that literacy students have not been implemented well and still have a low understanding of physics concepts as well as misconceptions of physics by students. The unavailability of teaching materials or multimedia that can specifically improve literacy and student’s understanding of concepts. The goal of this research is to develop interactive multimedia based on cognitive conflicts integrated with new literacies that are valid and practical. The research was conducted using a type of research of Plomp model development. The object of research is the interactive multimedia cognitive conflict. Product validity was tested using the instrument validity by the experts consisting of 5 lecturers of Physics, test the practicality of the product using the instrument practicality are one to one and small group by the students of class XI of SMAN 2 Padang. Data analysis techniques for validity and practicality of the product used descriptive statistical analysis. Interactive multimedia based on cognitive conflicts integrated new literacy on thermodynamics and wave mechanics materials for students of class XI high school is valid and practical. Interactive Multimedia can be used by teachers and students in learning activities.
Practicality of the interactive multimedia development integrated science with inquiry based learning model of simple machine themes on human muscular and skeleton system integrated 21st century learning
Authors: Nurhafifah  , Ratnawulan  , Fauzi Ahmad 
Published: May 2021

Abstract
The 21st century learning is learning that combines literacy skills, knowledge skills, skills and attitudes, as well as mastery of information and communication technology. 21st century learning requires students to be able to find solutions to problems based on their knowledge by using thinking skills. However, from the preliminary research, it was seen that students only studied science with low competence. To overcome this problem, it is necessary to update student learning resources. One example of using media to make it more meaningful is by using interactive multimedia. Because interactive multimedia is able to provide feedback for teachers and students who use it. teaching materials can be used independently by students. Interactive multimedia that has been developed based on the inquiry learning model can increase students ‘active participation in learning and can increase the competence of students’ attitudes, knowledge and skills. The quality of integrated science interactive multimedia development of inquiry learning models with the theme of simple planes on the 21st century skew integrated human muscle and system framework that has been developed can be used if it meets several appropriate criteria, namely aspects of validity, practicality, effectiveness. the validity of integrated science interactive multimedia is included in the valid criteria with an average value of 0.84. Practicality for one to one evaluations is 90.97% and practicality for small group students is 92.53% with very practical category.
Preliminary study on development of practicum module for algorithms and computer programming course
Authors: Anshari R , Sundari P D , Akmam A 
Published: May 2021

Abstract
Physics is part of Natural Sciences. Studying physics is inseparable from the existence of quantities. Quantities itself are anything that can be measured and expressed in numbers. These numbers then give birth to an empirical formula and a model that represents physical phenomena in nature. Physics students are expected to master, understand, and be able to apply physics knowledge to find solutions to physical problems. Lately, the use of computers has been integrated in almost all aspects of science, including physics. Based on these conditions, a computer-assisted calculation method known as a computational method has developed which is very precise and can involve large amounts of empirical data. On this basis, the Algorithm and Computer Programming Course was born, which focuses on providing programming skills to physics students so that they are able to use computers to calculate existing empirical physics formulas and mathematical models and for this purpose, critical and creative thinking skills are needed. The research carried out is a type of research and development (R&D) using the 4-D Model. This paper presents the results of research that has been carried out and shows the need for a needs analysis and the urgency of changing the use of a new programming language for students to better understand algorithms and coding. Data were collected by distributing questionnaires and analyzing literature.
Using Rasch model for the development and validation of energy literacy assessment instrument for prospective physics teachers
Authors: Yusup M 
Published: May 2021

Abstract
As the world facing energy crisis, energy literacy should be an important part in preparing prospective physics teachers. This research address the lack of currently available instrument to assess prospective physics teachers’ energy literacy. This paper aims to provide a validity argument of the ELA. Two pilot tests were carried out in three universities in Indonesia. In field-test I, the instrument was given to 112 students. The partial-credit Rasch model was applied to the data to examine items and test properties. The instrument was then revised and given to 123 students in field-test II. Through the processes of removing and/or modifying misfit items based on Rasch analyses, a set of 33 items that has a unidimensional construct of energy literacy was empirically established. Instrument validation results successfully provided a validity argument as they met inferences of scoring, generalization, explanation, and extrapolation. Further instructions on how to use results obtained from the instrument are also provided.
Analysis of student perceptions in the learning environment chemical laboratory
Authors: Allanas E 
Published: May 2021

Abstract
This study aims to analyze the perceptions of chemistry students towards the chemistry laboratory learning environment at Universitas Negeri Jakarta, by using instrument the Chemistry Laboratory Environment Inventory (CLEI). The sample used was 400 students of the Depart of Chemistry and Chemistry Education Universitas Negeri Jakarta. The research method used is a survey method using a questionaerie, laboratory observations and interviews with students. The survey results show the dimensions of student cohesiveness, open-endedness, integration, and students’ perception rule clarity is very good, only in the open-ended dimension and environment material resulting in a multitude of answers dominance never, rarely, and sometimes
Development of blended learning based on website on fluid mechanic material to improve students’ creative thinking skills
Authors: Serevina V , Meyputri C U 
Published: May 2021

Abstract
This research and development was based on the need for using of web-based media, with the aims of (1) developing web-based media with fluid-mechanics material, (2) as a support system of a blended learning to improve creative thinking skills that are currently urgent and needed by students, (3) produce web-based learning media that can provide facilities for the efficiency and effectiveness in teaching and learning process. The method in this research development used the ADDIE (Analyze, Design, Development, Implementation, and Evaluation) model. The lecture material in this study is fluid mechanics on the website: vinnarrai.com and its effectiveness was observed from the posttest and pretest, with the research object namely 70 physics education students, which conducted in Semester 111th 2019 at State University of Jakarta. The validation results from the media experts stated 85% of the web developed was very good for use and the validation from the material experts stated that 90% of the material presented was very feasible. The validity test on the instrument with fluid-mechanics material shows the value of the t-test results (6.80)> t-table (2.16) with 11 valid questions and 4 drop questions. Then the reliability test for the whole question are declared reliable with score r-count 0.73 > r-table 0.05, so the creative thinking skills instrument for this fluid mechanics material was reliable. The results of this study to improve creative thinking skills of students with 0.56 N-Gain ratings in the medium category. The conclusion of this study showed that the blended learning based on website has been used in the learning process was feasible to use and effective enough to improve students’ creative thinking skills.
Development device learning online use model inquiry learning on theory the balance of tough things
Authors: Serevina V , Lestari M A 
Published: May 2021

Abstract
Covid-19 pandemic has changed the world of education where the learning process is done remotely by using an online learning system (online) which is done at home. The need for a device learning is designed to be able to support the distance learning process and achieve 21st century competence, which is directly involved in the learning process using internet facilities. This study aims to develop online learning tools using Inquiry Learning model for physics subjects on equilibrium of rigid bodies. The syntax of the Inquiry Learning model 1) orientation to the problem, 2) making a hypothesis, 3) collecting data, 4) processing the results of the data, and 5) formulating conclusions. The researcher used research and development method (Research & Development), using the ADDIE models (Analysis, Design, Development, Implementation,Evaluation). The validation results of the three experts and the overall average teacher showed a percentage of 81.89%, it can be categorized in a very good category. This online learning tool can be declared very good or feasible to use in physics lessons on rigid equilibrium material. So, the development of online learning tools using inquiry learning model on rigid equilibrium material is effective and suitable for the physics learning process of class XI senior high school.
Development of discovery learning-based on online learning tools on momentum and impulse
Authors: Serevina V , Luthfi K 
Published: May 2021

Abstract
Covid-19 pandemic affects all aspects of lives including, education. In line with large-scale social restriction policy, Education and Culture Ministry issued a policy to close schools and replace the face-to-face learning activity with online learning or known as distant learning. This research is aimed at developing discovery learning-based online learning tools on momentum and impulse. The learning tools that were developed are Lesson Plan, Student Worksheet, and Handout. Discovery learning model could improve students’ active learning as they find and investigate on their own. As the result, the comprehension they get will last long in their memory. This research uses ADDIE development model consisting of five stages, namely Analysis, Design, Development, Implementation and Evaluation. The Data was analysed using descriptive analysis technique. The learning tools was tested at SMK Negeri 53 state vocational high school Jakarta by 35 students at tenth grade of Motor Cycle Business Technique (TBSM) class as well as through teacher’s response questionnnaire. The research resulted in online lerning media that is approporate for distant physics learning on momentum and impulse with subject expert’s validation at 85.38%, learning expert’s validation at 86.25% and media expert’s validation at 88.50%. The online learning tools is categorized as ‘good’ with validation result percentage at 86.71%.
Development of online learning devices based on PDEODE (predict - discuss I - explain I - observe - discuss II - explain II) on the material doppler effect in the covid-19 pandemic era
Authors: Serevina Vina , Arianti Silfia 
Published: May 2021

Abstract
The impact of the Covid-19 Pandemic changed the world of education, especially in the implementation of Teaching and Learning Activities. In the learning process, for example the teacher no longer has to face to face with students because it can be done online. This research aims to develop an online learning device based on PDEODE (Predict - Discuss I -Explain I - Observe - Discuss II - Explain II). The type of research used is Research and Development (R&D) using the 4-D model (Define, Design, Development, Desiminate). However, this research only reached the develop stage. This online learning device was validated by 6 expert validators, which included 2 material expert validators, 2 media expert validators and 2 learning expert validators. This PDEODE-based online learning devices has already been tested on its product design for teachers and grade X students at SMKN 53 Jakarta. The result shows that the PDEODE based online learning devices is “very good” because it has been through the validation test stage and trial phase with a percentage of achievement as much as 63.77% according to material experts, 89.94% according to media experts and 85% according to learning experts. The results of trials by teachers and participants students show the percentage of teacher responses as much as 94% and overall can be a percentage of 83.18%. Based on the analysis of data that has been collected can be concluded that PDEODE-based online learning devices on the Doppler Effect material are very good/feasible to be developed and used in this Covid-19 Pandemic Era.
Effects of mechanical wave learning material by integrating CTL strategy on environmental literacy of grade XI students
Authors: Asrizal  , Desnita  , Darvina Y , Usman E A , As Sidiq S A 
Published: May 2021

Abstract
Learning in the 21st century should be connected to real world contexts. CTL strategy is one way to develop student skills. This is because learning process with a CTL strategy presents learning material that is related to the environment around students, in this way it can foster and improve students environmental literacy. In learning process, CTL strategy and environmental literacy can be integrated into learning material. However, the conditions found in the application of CTL strategy and environmental literacy in schools were still lacking. The solution to this problem is to use mechanical wave learning material integrated with CTL strategy for the environmental literacy of grade XI students. This research was a quasi-experimental research with a before and after design for related sample groups. The research instrument consisted of a knowledge aspect learning outcome test and student environmental literacy assessment sheets. The research data were analyzed using descriptive statistics and the two means comparison test for related groups. The result of the data analysis is the use of mechanical wave learning material integrated with CTL strategy has a positive effect on the knowledge aspect and environmental literacy of grade XI students.
Analysis of student problem solving skills on physics concepts in SMP/MTs through blended learning early teaching during the covid-19 pandemic
Authors: Hasan M , Mursalin  , Odja A H 
Published: May 2021

Abstract
This study aims to determine students’ problem solving skills in physics concepts at the SMP/MTs level by teaching blended learning. The research method used was a mixed method with a sequential explanatory strategy. The data were obtained through the provision of problem-solving tests, the data was strengthened by interviews with student representatives who obtained high, medium and low scores. The sample in this study were 20 students of class VIII of the MTs in Gorontalo. The results of the analysis show that the problem solving ability of physics concepts on the topic of light is in the low category. The average percentage of students’ problem solving abilities was 52, 58%. For each problem solving indicator, the percentage is as follows: 72, 50% for the problem focus indicator; 14.66% for physical description indicators; 64.50% for indicators planning completion; 54.75% for indicators of implementing the plan; and for indicators evaluating the completion reached 56.50%. From the results of the interview, there were various obstacles experienced by students in conducting online teaching. Online teaching is carried out using blended learning, namely through virtual face-to-face and non-virtual face-to-face. The low problem solving skills of students for the concept of physics on the topic of light needs to be improved in the application of blended learning, especially related to the obstacles faced by students in implementing blended learning during the Covid-19 pandemic.
Guide inquiry science e-module development for improving junior high school students’ scientific literacy
Authors: Maison  , Wahyuni Ika 
Published: May 2021

Abstract
The first-grade students of SMP Negeri 9 in Jambi City experience difficulties in understanding science concepts, especially temperature and heat. Their ability to process numbers has also not been optimally developed. There is a need for teaching materials in the form of a learning module that is easily accessible for students to learn independently and better. This study aims to produce a product in the way of guided inquiry-based electronic learning modules to contain instructional materials and learning media that are easy to use and contextual, with a clear and understandable language and delivery. The development model used is the ADDIE model. The study result has been analyzed using the descriptive qualitative method. The development process has been carried out a prototype electronic learning modules with a science literacy load on the learning material presented. The individual test results and small group trials show that the electronic learning module is easy to use and easy to understand with an attractive design. Furthermore, the electronic learning module has a positive impact on improving learning and reading motivation and the ability to process numbers. It is an electronic module that potentially enhances students’ science literacy.
Evaluation of error- and correlation-based loss functions for multitask learning dimensional speech emotion recognition
Authors: Atmaja B T , Akagi M 
Published: May 2021

Abstract
The choice of a loss function is a critical part in machine learning. This paper evaluates two different loss functions commonly used in regression-task dimensional speech emotion recognition — error-based and correlation-based loss functions. We found that using correlation-based loss function with concordance correlation coefficient (CCC) loss resulted in better performance than error-based loss functions with mean squared error (MSE) and mean absolute error (MAE). The evaluations were measured in averaged CCC among three emotional attributes. The results are consistent with two input feature sets and two datasets. The scatter plots of test prediction by those two loss functions also confirmed the results measured by CCC scores.
The effect of reverberation time on sound masking method to improve speech privacy in open-plan offices
Authors: Valentina L L , Arifianto D , Azmi F U , Fajar B , Nadiroh A 
Published: May 2021

Abstract
Lack of speech privacy is a significant problem in open-plan offices. Sound masking, which essentially covers the target speech with the competing speech simultaneously (masker), can increase speech privacy. However, a conversation takes place in a reverberant room at which will reduce speech intelligibility. This study observed the effectiveness of reverberation time on the sound masking to the target. In this early study, three conditions of stimuli were used, namely clean, 0.3 s and 0.6 s reverberation time added to both target and masker, respectively. The STI and subjective measure were used with twenty-five volunteers. As expected, the results suggest that the longer the reverberation time, the lower the effectiveness of the masker strength. The STI agrees with the subjective measure.