bluuebunny/crossref_metadata_2025 huggingface dataset:
The Effectiveness of Game Based Learning on The Logic Gate Topics
Authors: Dewantara D , Wati M , Misbah M , Mahtari S , Haryandi S
Published: June 2020

This article focuses on analyzing the effectiveness of applying Game Based Learning on Logic Gate Material to student learning outcomes. This type of research is quantitative descriptive. This study uses a one group pretest and posttest design. This study uses a one group pretest and posttest design. The treatment given in this research is the application of game based learning. Game based learning using the game “Circuit Scramble.apk. This research was conducted at the Physics Education Study Program at Lambung Mangkurat University. The research subjects are Physics education students taking digital electronics courses in 2019. Data is collected using pre-test and post-test about logic gate. Pre-test and post-test data were tested for normality then N-gain test. N-gain test results obtained a value of 0.703. Therefore, it can be concluded that the effectiveness of the application of game based learning is in the high category. Thus, Game based learning on effective logic gate material is applied to improve student learning outcomes.
The Process of Developing Students’ Scientific Argumentation Skill Using Argument-Driven Inquiry (ADI) Model in Senior High School on The Topic of Elasticity
Authors: Suliyanah  , Fadillah R N , Deta U A
Published: June 2020

The Argument-Driven Inquiry (ADI) learning model is a laboratory-based learning model. ADI requires students to be able to work as a group and make argumentation that shows their understanding of concepts. It is important to practice scientific argumentation in learning so that the students can explain scientific phenomena based on evidence and concepts learned. The purpose of the research is to train the student’s argumentation with the ADI model. This research used a qualitative descriptive with the subject of research is 37 senior high school students. Students’ scientific arguments skill is measured by verbal arguments supported by written arguments and analyzed using Toulmin’s Argumentation Pattern. The results show that there is an influence of the ADI model on students spoken scientific argumentation with a mean at level 3 and supported by written argumentation which increased with a mean value of 2.72 on the topic of Elasticity. It can be concluded that the most student’s ability in providing scientific argument is at the level of giving claim with the weak support warrant.
Identification of Moho Discontinuity Depth Variations and Subduction Slab in North Sumatra Region Using Receiver Function Method
Authors: Pratama R , Ariyanto P , Wijaya A , Ariwibowo S
Published: June 2020

Northern Sumatra is an area with a complex structure of the earth’s crust. This area is very suitable for studying the state of the lithosphere in the subduction zone, where the average distribution of earthquakes with magnitudes greater than 5.0 occurs due to the movement of the subduction zone. This study aims to map the depth of the Moho discontinuity and subduction slab under 3 seismic stations in northern Sumatra, where 3 broadband sensors are 3 components of the BMKG seismograph network (Meteorology, Climatology and Geophysics) using the receiver function method. This study used teleseismic earthquake data with a distance of 30° - 90°. Inversion of the neighbourhood algorithm is used to get the S wave velocity model and theVp/Vsvalue used to migrate the amplitude of the receiver function from the time domain to the depth domain. The depth of the Moho in northern Sumatra varies, under the GSI station the Moho depth is shallow ∼ 9 km, while the Moho depth for the other stations is on average 19 - 47 km. The slab is identified at a depth of ∼ 35.5 - 192.54 km below the GSI station to the TSI station where the position of the linear station is towards the Indo-Australian subduction zone. The low speed zone can be identified in the study and found to be in the range of ∼ 10 - 35 km below the surface of the Toba caldera.
The Students’ Understanding Profile on Nature of Science (NOS) of Physics
Authors: Jauhariyah M N R , Rohmah S N , Permatasari N Y
Published: June 2020

Nature of Science (NOS) is an important concept in learning science. This is a much larger issue in science education research. This study aims to find out how students understand NOS in physics learning. This research describes the students’ understanding profile of the NOS based on the questionnaire in the form of a set of open questions or written statements to respondents to be answered. Respondents were 33 students of science class at one of school in east java in the academic year 2019/2020. The results showed that the level of understanding of the NOS by students in the range of categories is sufficient. Considering the importance of understanding the nature of science, this research implies that knowledge about aspects of the NOS should be paid more attention and study by all members of the education community so that students can better understand the NOS.
The Design of Physics Learning Video as Joyful-Based Learning Media Enrichment by Powtoon
Authors: Bakri F , Rodhiyah A , Nurindrasari M , Pratiwi S , Muliyati D
Published: June 2020

This research aims to develop physics learning videos as fun and meaningful, based on joyful learning. Joyful learning requires engaging in the delivery of learning material. The video development process uses Powtoon software. This video is a form of media that can be used to convey learning in a fun and meaningful way. This stage of development research consists of defining, design, developing, and disseminating. This paper describes the development process of each stage. The output of this research is a video of learning that will be appropriate to be used as a medium for learning high school physics.
Online-based Physics Learning to Provide Four Dimensions of Knowledge to Teacher Training Program Students
Authors: Kustijono R , Hakim SR , Wiwin E
Published: June 2020

The purpose of the study is to describe the effectiveness of online-based physics learning to provide four dimensions of knowledge to teacher training program students. This type of research is quasi-experimental with a time-series design. Effectiveness is seen from the four dimensions of student knowledge and response. The manipulation variable is online-based physics learning and mastery of knowledge is the dependent variable. Research subjects were 40 students of the Physics Teacher Training Program at Universitas Negeri Surabaya. Six Physics modules are discussed regularly. Assessment of four dimensions of student knowledge and responses using a Likert scale (1-5). Data analysis uses descriptive statistics. Learning is effective if the average value of mastery of each dimension of knowledge ≥ 3.1 (scale 0-5) in each discussion module with a fixed or upward trend. Student responses are effective if the percentage is obtained by ≥ 61%. The results are: 1) the average score of students’ knowledge dimensions (factual, conceptual, procedural, and metacognitive) is ≥ 3.1 2) Student responses are ≥ 61%. The results showed that online-based physics learning is effective can provide four dimensions of knowledge to Teacher Training Program Students and get a positive response.
The Use of Physics Tricks to Practice Critical Thinking Skills in Senior High School Students
Authors: Wiwin E , Hakim SR , Kustijono R
Published: June 2020

The purpose of this study was to determine the effectiveness of using physics tricks to practice the critical thinking skills of senior high school students. The critical thinking skills determined are analyzing, evaluating, applying, generating ideas, and exploring ideas. This type of research is pre-experimental using one-shot case study design. The effectiveness of the use of physics tricks is seen from the critical thinking skills and student responses. Research subjects were 50 senior high school students. Analysis of the data used is descriptive statistics. Effectiveness scores are measured using a Likert scale. Physics tricks are effective if the scores of critical thinking skills and student responses indicate more than 60% are good and very good. The results obtained are 1) the score of students’ critical thinking skills is categorized good and student responses are categorized very good. The results concluded that the physics trick was qualified to be used to practice the critical thinking skills of senior high school students.
Science Process Skills Profile of Non-Science Undergraduate Student in Universitas Negeri Surabaya
Authors: Deta U A , Prakoso I , Agustina P Z R , Fadillah R N , Lestari N A , Yantidewi M , Admoko S , Zainuddin A , Nurlailiyah A , Prahani B K
Published: June 2020

Science process skills are an ability to apply scientific methods in understanding, developing and discovering science. The importance of learning science process skills is to make students easier to solve problems in their daily life. The purpose of this research is to find out the science process skills profile of non-science undergraduate students. The object of this research is non-science undergraduate students in Universitas Negeri Surabaya. It’s using the descriptive qualitative method, and the data obtained from the questionnaire and interview. The result of this research is non-science undergraduate students didn’t accustom to analyzing a problem using science process skills. It’s according to the results of surveys and interviews that are less than optimal. Therefore, the conclusion is science process skills need to train to non-science students because it helps in solving problems in everyday life through a scientific fact.
Elite (E-Book Literacy) for Junior High School Student’s Scientific Literacy in Solar System Material
Authors: Kusumawati A T , Wasis  , Sanjaya I G M , Kholiq Abd.
Published: June 2020

Many researches on e-book development have been done, but they are different from the development of e-book literacy (ELITE). The developed ELITE has several advantages, including features that can be utilized to train students’ scientific literacy, the integration as a source of student learning, and teacher’s teaching material in learning. This study aims to produce ELITE which is reliable in terms of validity, practicality, and effectiveness review. The e-book developed is said to be worthy if at least it has good enough criteria. Type of research that is appropriate with the design of ELITE media development to practice scientific literacy is ADDIE (Analysis, Design, Develop, Implement, and Evaluate). The data collection employed included validation, observation and questionnaires. The obtained results show that the validity was in very valid category (learning 91.67%, material 92.71%, media 94.27% and language 90.74%). The practicality results are categorized very good with a percentage of 87.50%. The results of effectiveness based on the pre-test and post-test results are as follows: the scientific literacy competence to explain the phenomenon scientifically increased by 52% and the scientific literacy competence to interpret data and scientific evidence increased by 59%. The results of this effectiveness are included in the quite good category. In addition, the effectiveness results based on students’ positive responses are categorized very well (85.71%). Based on the analysis results, it can be concluded that the ELITE media developed is feasible to be used to train junior high school students’ scientific literacy particularly on solar system material.
Gaussian Process Regression with Average Hyperparameter
Authors: Winarni S , Indratno S W
Published: June 2020

Gaussian regression process (GPR) is a non-parametric analysis approach that is more flexible than simple linear regression analysis. Linear and non linear patterned data can be modeled by GPR. In big data the use of GPR is constrained by the increasing size of the data. Data partitioning approach can be done as an alternative to facilitate data processing. The partitioned data then shifts one data, and so on until the last training data. In each data partition an optimum hyperparameter will be obtained. The average hyperparameter is used in the prediction process. The results obtained are that by partitioning the data and then using the average hyperparameter, the predicted results obtained are better than doing with the overall training data. In the data partition approach, small partitions provide better predictive results than large partitions. The resulting RMSE value is also getting smaller. Thus the average hyperparameter approach with small data partitions can be used as an alternative in making predictions on GPR.
Analysis of Generalized Space Time Autoregressive with Exogenous Variable (GSTARX) Model with Outlier Factor
Authors: Mukhaiyar U , Huda N M , Sari K N , Pasaribu U S
Published: June 2020

The outlier is an observation data that has different characteristics from others. Frequently, outliers are removed to improve the accuracy of the estimators. But sometimes the presence of an outlier has a specific meaning, which explanation can be lost if the outlier is removed. There are two exceptional cases from types of outliers, Innovative Outlier (IO) and Additive Outlier (AO). The presence of an outlier in the space-time model is no exception. Space-time model, not only influenced by previous observations at the same location and previous observations in a different location, or there are not only time and location dependencies, but also there are some other things that affect, which can be expressed as an exogenous variable. GSTARX is a model that combines not only time and location but also involves exogenous variables. In the GSTARX model, the presence of outliers may also be detected and may have spatial correlation at a time. In this paper, the iterative procedure in detecting outliers in the GSTARX model was introduced. Therefore data containing outliers is not deleted or ignored but still involves the outlier data by adding an outlier factor to the GSTARX model. The power of the procedure in detecting outliers is investigated by simulation experiments. The result is a GSTARX model with outlier factors that maintain the outlier factor.
Performance of Entropy-Based Criteria Weights in Solving Multi-Criteria Problems
Authors: Mat Kasim M , Jemain A A
Published: June 2020

Weights of criteria are often predetermined prior to solving multi-criteria problems. One way to estimate the weights is by manipulating the intrinsic information contained in the criteria. The measure of entropy which is usually modelled by probability concept has been used to represent the criteria weight. The aim of this paper is to propose the use of density functions obtained by kernel-based method to represent the probability in estimating entropy of criteria. Furthermore, a simulation experiment was used to investigate the pattern of decisions provided by the proposed method in solving multi-criteria problems. The results showed that the performance of the proposed method is quite consistent. The use of probability density functions representing probability in computing entropy of criteria contributed to another development in entropy theory. Hence, the use of the resulted entropy-based criteria weights would lead to a more valid outcome in resolving multi-criteria decision-making problems.
Student Engagement And Attitude in Mathematics Achievement Using Single Valued Neutrosophic Set
Authors: Mahmud M , Md Nor N , Jauhari N E , Nordin N I , Abdul Rahman N
Published: June 2020

Generalization of the Fuzzy set and Intuitionistic Fuzzy set concept is called as Neutrosophic set which is a powerful general formal framework. The components in Neutrosophic set has a degree of truth (T), indeterminacy (I) and falsity (F). The value of this components are between [0,1], respectively. A Neutrosphic set has a general formal framework for analysing uncertainty in data set or undetermined information. Not only uncertainty, Neutrosophic set can also analyse large information sets or big data sets as well. Single Valued Neutrosophioc sets (SVNs) was introduce to be used expediently to deal with real problems and it is appropriate in solving data mining problem and make a decision for the problem. In this paper, Single Valued Neutrosophic set (SVNs) was proposed to measuring factors impact on student engagement and attitude in mathematics achievement based on Trends in International Mathematics and Science Study TIMSS 2015 for ASEAN countries and use the data to illustrate the applicability of the proposed factors similarity measures in decision making. The result shows that the factor which is Confidence in Mathematics include in highly acceptable zone in students’ engagement and attitude in Mathematics Achievement for ASEAN countries.
Sensitivity Analysis in Finding Shortest Path for Order Picker with Limited Picking Capacity
Authors: Nordin N A M , Shariff S S R , Omar M
Published: June 2020

The success of any warehouse management is normally contributed by the success of order picking process. In any warehouse operation, order picking contributes more than half percentage of the total warehouse operating costs. Layout of warehouse, storage allocation, number of order pickers and various routing methods contribute to significant impact on the order picking process. All of these variables need to be considered in ensuring smooth and fast order picking process. We test the variation of each variable in finding the optimal route for each order picker, using a modified Dynamic Programming method. Real data set of a warehouse operation is used for the study. The results show a reduced of total distance by 11.6% by choosing the shortest path based on the number of order pickers and an increase by 48% using batch picking method. The shortest distances for each OP with limited capacity are also discussed thoroughly in this paper.
Analysis sentiment in social media against election using the method naive Bayes
Authors: Nurcahyono Damar , Putra Willy Permana , Najib Abdul , Tulili Tien Rahayu
Published: June 2020

Election is the process of selecting people to fill a variety of political positions that are diverse. General elections in a country are usually held periodically where the country adheres to a democratic system. Indonesia is a country that adopts a democratic system. The development of the use of Social Media is very fast. Nowadays, there are many social media which have a big influence. As a result, society has experienced changes in culture, ethics, norms and a more critical mindset in responding to existing conditions as well. Social media is now increasingly easy to use by all groups, from the beginning only a small person to a successful person and famous for Social Media. Sentiment analysis is a science that is useful for analyzing someone’s opinions, sentiments, and emotions expressed in the text. In this study the Naïve Bayes method can be applied to the classification of positive, negative, and neutral opinions. In this study of 50 training data and 10 test data obtained an accuracy of 90%. And the results obtained positive sentiment percentage of 50%, negative 20%, neutral 10%. More positive sentiments gained.
Implementation of Artificial Ant Colony Algorithm (AACA) in dynamic labyrinth generation for android-based 2D games
Authors: Herumurti Darlis , Kuswardayan Imam , Khotimah Wijayanti Nurul , Yunanto Andhik Ampuh , Yusuf Andi Akram
Published: June 2020

Playing games can make people feel fun. Players can be more fun if you have a lot of variations, for example, variations of items, maps, or enemies. Map variations can be fulfilled by implementing a dynamic labyrinth generator. In this research, the game has a feature called Dynamic labyrinth generation using the Artificial Ant Colony Algorithm (AACA) method. For deployment, this game is implemented on the Android mobile platform. The evaluation is conducted by testing functionality in system games. The result indicates AACA can generate dynamic mazes and with optimal time with less than five seconds. So, the conclusion from this research that the AACA method can generate dynamic labyrinth quickly and well for Android Game.
Geographic information system design of tourism in Bengkayang regency
Authors: Beno Eximenes , Harjoseputro Yulius , Rusdianto Eduard
Published: June 2020

Bengkayang Regency is a place that has a uniqueness that is rarely found in another area because Bengkayang has a coastline, islands, and forests that are still sustainable and protected. Bengkayang also has many unique cultures and traditions. Although it has a uniqueness, which is rare in Bengkayang Regency, only a few people understand about the various potentials that exist in Bengkayang Regency. That is because the regional government still has problems in developing Bengkayang Regency tourism. After all, there are no media that can be a means of information as well as promotion for tourists. Therefore, the authors build a web-based geographic information system using the PHP programming language and MySQL database called PARAYANG. This system is equipped with a Travel Destination Map feature to provide tourists with an overview of the distribution of the location points of each tourist destination in Bengkayang Regency. PARAYANG is intended for tourists because it can convey complete and interactive information about attractions and available events around Bengkayang Regency. The output from the development of this system is that the application can facilitate tourists in getting information about tourism and events in Bengkayang Regency. Besides, the existing tourist map feature in the method can provide information about the distribution of tourist destination locations in Bengkayang Regency so that it can assist tourists in determining the desired tourist destination.
Role of packet tracer in simulating server services on the client-server computer network
Authors: Irawan Purnama Ida Bagus
Published: June 2020

In a client-server architecture, a server is dedicated to providing various services, functions, and resources to serve its clients’ requests over a computer network. To understand and expertise this concept, a lot of exercises are critically needed. This aims to improve learners’ practical skills as well as to expand their knowledge. However, a real client-server network with the representative servers and network devices is costly. It is sometimes not available for the experiment and trial. In this case, a network simulator can be a reasonable substitute. This study uses Cisco Packet Tracer to simulate various server services such as DHCP, HTTP, DNS, FTP, Email, NTP, Firewall and IoT Registration Server. The mini-project simulation is proposed to explore the capabilities of the simulator to providing a wide range of server services. All settings and testing are visualized followed by the discussion of each result. It is expected that by practicing and mastering this mini-project simulation, learners can first build the client-server network using proper devices, wiring, naming, and addressing on a single monitor. Second, they can understand all the server parameters and then able to configure them step by step. And third, they can easily conduct testing, tracing and troubleshooting afterward. Furthermore, this work has a goal to build a bridge between network theory and practical aspects simultaneously so that learners will have a lot of confidence when working on a real network.
Web-based learning system and simulation for time series seasonal adjustment
Authors: Ridho Farid , Huslijah Else
Published: June 2020

Time-series data is one of the data produced by the Badan Pusat Statistik (BPS). The time-series data has the potential to have a seasonal effect which can cause the analysis to be less accurate. Seasonal effects can be eliminated by making seasonal adjustments (SA). An understanding of SA is needed by BPS employees in analyzing time series data. Therefore we need a form of web-based learning that can be reached by all BPS employees. The goals of the system to accommodate the needs of users to get learning materials related to statistical material and provides convenience to users in implementing seasonal adjustments. An important feature that needed in this learning system is a simulation tool. The learning system is built using the SDLC method. In its development, the system uses the PHP programming language which is used as the main backend of web-based learning and R as a programming language in simulation applications. Data processing application simulation with seasonal adjustment method is built using the Jdemetra + package which is integrated with R Shiny. The evaluation results show that the system built was acceptable to the user with a SUS value of 73.8. The results showed that the participants can use the learning and simulation system as a pedagogical tool on SA learning.
Android game implementation in health learning for early childhood education
Authors: Purnomo Fendi Aji , Pratisto Eko Harry , Alin Ariel Yonatan
Published: June 2020

The challenge as a teacher in adopting the 2013 Indonesian Education Curriculum for early age education is finding an effective learning media to support learning material. This study aims to design, and evaluate an education game about the importance of maintaining health for children. This puzzle game is developed for Android operating system. Ten elementary school students participated in this study. Questionnaire with Likert scale is used to measure the usability of the games. The result indicates that about 60% of respondents strongly agree in terms of ease of use, content and design.
Influence of PBL-based multimedia and learning motivation on students’ critical-thinking skills in elementary schools
Authors: Fajari L E W , Sarwanto  , Chumdari
Published: June 2020

This research aims to determine the effect of the use of the PBL-based multimedia and learning motivation on the students’ critical-thinking skills in elementary school. This research method is quasi-experimental with the 2×2 factorial design of ANOVA. The sample in this research consisted of 66 students with 31 control-class students and 35 experimental-class students with a total sampling technique. The data collection techniques were the open-ended critical-thinking skill test and learning motivation questionnaire. The data analysis technique used was a prerequisite test and research hypothesis test. The prerequisite tests include normality and homogeneity tests. The research hypothesis test used a Two-Way ANOVA. The results of this research showed that there is the influence of multimedia-based PBL in the experiment class on students’ critical-thinking skills. The mean score of the experimental class is 69±2.890 and of the control class 51±3.071. There is the influence of high and low learning motivation on the students’ critical-thinking skills. The mean score of the students with high motivation is 68.572 and those with low motivation 52.171. There is no interaction between the PBL-based multimedia and the learning motivation on the students’ CTS.
The use of multimedia in teaching entrepreneurship for university students: The case of economic education students
Authors: Sudarwati Ninik , Rukminingsih  , Prianto Agus
Published: June 2020

This study described the design and use of multimedia in learning entrepreneurship course for economic education student in a private university in East Java, Indonesia. Geared by catfish cultivation activity theory, the design and use of multimedia in this study were investigated through observation and students’ perceptions. Findings suggested that multimedia positively engaged learners in learning enactment. Future studies are encouraged to investigate this issue using the observational method.
How elementary school teachers use ICT-based learning media?
Authors: Hidayah Ratna , Ngatman  , Susiani Tri Saptuti , Salimi Moh , Suhartono
Published: June 2020

Integrated learning in elementary schools requires learning media as a means of communication. Research is needed on analysis of the media use of learning in elementary school learning. The purpose of this research is to examine how the elementary school teachers of perception and motivation to implement ICT-based learning media in learning activities. In this study using a quantitative approach to the type of survey, researchers used surveys, interviews and observations to collect data. The results of quantitative analysis of elementary school teachers are often categorized in learning media use. These results show that teachers have a good perception of the utilization of ICT in learning activities. However, to implement ICT-based media is not optimal.
Build and design knowledge management system for sharing material teacher
Authors: Muttaqi Fajar
Published: June 2020

Human resources in education become a force for institution itself because it can be an asset and capital owned in order to compete with other instituions. The design of knowledge management system aims to facilitate the educators in sharing knowledge both in each school and between the two schools. In this case the knowledge management system can serve to help educators in collecting knowledge and share material of teaching materials owned, so that tacit and explicit knowledge of each teacher can be well documented. This research uses RAD (Rapid Application Development) method with UML (Unified Modeling Language) as its development tools. While making its own application using PHP 7 and MySQL programming language for database processing. This research produces a web based knowledge management system that can collect, manage, store, and disseminate existing knowledge from teacher.
Pojok digital: The role of technology to improve learning motivation and literacy of primary school students
Authors: Fidiastuti H. R. , Prabowo C. A. , Bariska H. F.
Published: June 2020

Learning is a system consisting of integrated elements that result in act changing. In a learning activity, students’ learning motivation and varieties of literacy are essential to achieve required learning objectives as required by teachers and government based on the national curriculum. In this era, students’ need in the learning process is affected by the development of technology. The existence of technology is intended to improve learning motivation for students and give a new variety of literacy to gain new knowledge. The purpose of this study is to seek the role of technology in learning motivation and literacy of primary school students. Through Pojok Digital located in the Elementary School of Pujiharjo 2, Kabupaten Malang, students are given access to learning material that involves technology. A quantitative approach was used in which 20 students of 5th grade as a control class and 20 students of 6th grade as an experimental class to completed a questionnaire. The subjects of this study are 20 students of 5th grade as a control class and 20 students of 6th grade as an experimental class. The result shows that the ratio of the control and experimental class through the ANOVA gain test of the output score (P) was 0.045 or less than α 0,05. The result is reinforced by paired sample t-test with sig values output (P) of 0.01 under α 0,05. The mean of motivation score in the control class gains 0.11% whereas experimental class gain significantly by 2.7%. The test result for the gain score for literacy between control class and experimental sig value output 0.006 or less than α. The result for paired sample t-test of literacy achievement experienced increases in the control class of 10.1% while the experimental class reaches 17.6%.
Development of e-learning and statistical simulation for explorative data analysis based on android
Authors: Gracelita Nia , Maghfiroh Lutfi Rahmatuti
Published: June 2020

Exploratory Data Analysis (EDA) is one of the basic statistics subjects that needs to be studied as a basis for higher processing and analyzing data. This subject is taught in class, but these activities are not necessarily enough to understand the subject. This problem can be solved by learning independently. However, in the process of learning independently there are obstacles such as the unavailability of suitable material so that a search is needed which may not produce anything or if the material is available in book or textbook format, the material is less flexible in its use. An e-learning system needs to be developed to solve these problems. In addition, simulation can also help students’ understanding in building knowledge base. Furthermore, the use of smartphones with the Android operating system is the most used by Politeknik Statistika STIS students. Based on these problems, an e-learning system and statistical simulation will be built for this Android-based EDA subject. In its development, we use Java programming language and integrate with R Shiny for statistical simulations in the form of data processing. Evaluation shows that the system can be accepted by users as indicated by the Black Box test results and the SUS value of 84.13. The system still consist of basic features and still need to be improved with advanced features so can support the learning activities of EDA.
Mobile learning as a media training of reading literacy: blended learning
Authors: Katoningsih S , Wardhani JD , fauziah Nur , Astuti Willi
Published: June 2020

Increasing the professionalism of teachers mostly done by the government through various training. Teachers must attend training or other personal development but they were leaving the class or class time, so students do not get assistance in the learning process, they asked the student to do the task, so that the class is out of control and tends to be noisy. The purpose of this research is to develop mobile learning as a medium in literacy training so that training becomes more effective. This research is a research and development study. This research method was develop training models according to the needs of the trainees. The samples of this study were 32 teachers in SMA N Semarang. The results of this study indicate that the training model using mobile learning media and the learning system conducted in blended learning can make literacy training more effective. This training model also provides solutions to the training problems experienced by teachers. Based on the results of the feasibility test of the model through expert judgment shows that the model is feasible in terms of benefits, ease of use, the attractiveness of the model and the existence of innovations produced for the implementation of training.
Usability study of moodle LMS in statistics Indonesia learning center - case study
Authors: Santoso Ibnu , Efendy Idrus
Published: June 2020

Statistics Indonesia Learning Center (Pusdiklat BPS) mainly focuses on education and training for Statistics Indonesia’s employees and also for employees of other agencies. In the agency, there is an e-learning system to support distance learning. In the current system, the environment is not very optimal because the process of conducting learning and examinations is separated on two different platforms. It also needs another function like adding new features to give better assistance for administrators and training participants. In this paper we try to apply the Moodle Learning Management System (LMS) and customize it according to the requirement, to address the problems of the current e-learning system. From the evaluations, it was concluded that the new system was functioning well. It was acceptable to the users and it could meet user needs in terms of user interface and speed of response or execution time. Moodle LMS can be recommended as a good e-learning platform in the agency.
Constraints of high school mathematics teachers in teaching distance and angle material in three dimensions
Authors: Arivina A N , Retnawati H
Published: June 2020

The study aims to describe the obstacles of high school mathematics teachers in teaching the distance and angle of the three dimensions materials. This research is a descriptive exploratory study with a qualitative approach. We collected the data using interviews and questionnaires. The subject was 11 mathematics teachers of SMA, SMK, and MA in Semarang City and Demak Regency. The data was analyzed by looking for themes and determining inter-theme relations to gain an understanding. The findings are as follows. First, obstacles faced by mathematics teachers to teach the distance and angle of the three dimensions materials are teachers’ limited professional competence, students’ difficulties in understanding the concept, students’ difficulties in thinking, and the need for proper learning media. Second, some efforts made by teachers to overcome and expect obstacles happened namely discussing problems with other senior teachers, preparing and learning the materials that require special attention, using visual media, provides exercises with many types, close to psychology with students, and testing various proper teaching models and methods of three-dimension materials.
Identification of elementary school students’ difficulties in mathematical problem-solving
Authors: Kusumadewi C A , Retnawati H
Published: June 2020

One of the goals of learning mathematics is that students can solve mathematical problems in particular that can then solve problems in everyday life. In the process of solving problems, the skills that students must also possess are the ability to understand the problem, the ability to compose mathematical models of a problem and interpret the solution. In practice, however, students will encounter difficulties in resolving unavoidable problems. The purpose of this study is: 1) to explain the difficulties of students in resolving problem-solving problems; 2) to know the cause of students’ difficulties in resolving problem-solving. The research studies used are qualitative descriptive. The participants of this study are 27 students of class III B in one of the elementary schools in Sleman Regency, Yogyakarta. Method of collecting data through problems solving test. Data analysis techniques through the statistical description and content analysis. The results of this study show that 1) students are not used to face problem-solving problems, so that the results of solving problems are very low, (2) students have difficulty in finding keywords from problems in questions, because they don’t know the information or keyword of the problem and tend to guess the solution without going through the completion process (3) Students have difficulty to model the problem into mathematical form (4) Students have difficulty deciding how to resolution of the problem, and 5) students have difficulty in counting operations, so that students interpret conclusions that are not appropriate to the problem. Therefore, this results of the research will lead to inform the teachers, in order to improve students’ mathematical problem solving skills.
Application of contextual teaching and learning approaches in improving mathematics interest and learning achievement of elementary school students
Authors: Velani F Y , Retnawati H
Published: June 2020

This study aims to determine the effect of applying the Contextual Teaching and Learning approach to student interest and student achievement in mathematics. This type of research used in this study is a quantitative type with a descriptive evaluation design. The evaluation model used is a logic model. The research subjects used were four headmasters, four fifth grade teachers and fifth graders from four elementary schools in Boyolali district Indonesia. Data collected through observation, interviews, and documentation. Analysis of the data used is quantitative descriptive data analysis. The results showed that the application of the Contextual Teaching and Learning approach in mathematics learning in four elementary schools in Boyolali district Indonesia had run well seen from the role of the teacher in implementing all components of Contextual Teaching and Learning, namely finding (inquiry), asking (questioning), the community learning (learning community), modeling, reflection (reflection), and assessment. And student interest and student achievement in following mathematics lessons with the Contextual Teaching and Learning approach with very good and good categories.
Validation of TTMC instrument of pre-service chemistry teacher’s TPACK using Rasch model application
Authors: Puspitasari J R , Yamtinah S , Susilowati E , Kristyasari M L
Published: June 2020

Technological pedagogical content knowledge (TPACK) is the knowledge of abilities that teachers need to have in facing 21st-century learning. Knowledge domains in the TPACK framework include TK, PK, CK, TPK, TCK, PCK, and TPACK. The capability of the teacher’s TPACK to rate with a valid instrument design is needed. This article discusses the validation and validity of TPACK instruments using the Rasch model analysis. The TPACK instrument used was Two-Tier Multiple Choice (TTMC), in which the tier-one was as the material foundation, and the tier-two was as supporting reasons. The validation was carried out by seven education experts, namely teachers who had a working period of more than 15 years, one material expert, and one material expert as well as a test construction expert in the Forum Group Discussion (FGD). There were 21 item TTMC questions analyzed. The analyzed using the Rasch model application. The results are that all TTMC TPACK questions are valid. The instrument can be to assess the ability of pre-service chemistry teachers TPACK in future studies.
Implementation of 4Es combined with drill and practice learning model by considering mathematics ability on the students’ learning achievement on the topic of solubility and solubility product
Authors: Sholikhah Nur Seviana Mar’atus , Hastuti Budi , Indriyanti Nurma Yunita
Published: June 2020

The object of the research was to investigate: (1) the effectiveness of the learning Cycle 4Es combined with Drill and Practice and conventional learning models on the students’ learning achievement; (2) the effect of the ability in Mathematics on the students’ learning achievement; and (3) the interaction between the Learning Cycle 4Es combined with Drill and Practice and conventional learning models and the ability in Mathematics on the students’ learning achievement on solubility and solubility product. The samples of research consisted of 2 classes, experimental class and control class. Data analysis study used two way variance analysis (ANAVA) with unequal cells and Kruskal Wallis tests. The results of the research showed that (1) there was an effectiveness of the Learning Cycle 4Es combined with Drill and Practice and conventional learning models on the learning achievement in the knowledge and skill aspect, but there was not any effectiveness on the attitude aspects; (2) there was an influence of mathematics ability on learning achievement aspects of knowledge, but there was not any influence on attitude and skills aspect; (3) there was an interaction between the Learning Cycle 4Es combined with Drill and Practice and conventional learning model and the ability in Mathematics on learning achievement aspects of knowledge, but there was not an interaction on attitudes and skills aspect.
Mathematics teaching anxiety in novice teacher
Authors: Syuhada N , Retnawati H
Published: June 2020

This study describes the causes, symptoms, and strategies in reducing anxiety experienced by novice teachers when teaching mathematics. This research was qualitative research with the descriptive explorative method. The data was collected using questionnaires and interviews. The subject was 13 math teachers in secondary schools in Riau, Kepulauan Riau, Sumatera Selatan, Jawa Tengah, and Jawa Barat. The data was analyzed by looking for themes and concluding relationships between themes to gain understanding. The findings are (1) novice teachers’ mathematics teaching anxiety in secondary schools includes lack of materials mastery, confusion in choosing and applying learning strategies, and difficulty in managing classes, (2) the symptoms experienced by the teachers are vibrating hands, heart palpitations, cold sweat, inability to remember material well and tendency to avoid the learning process, (3) the strategies carried out by novice teachers to reduce the anxiety experienced include understanding learning materials, looking for strategies that are suitable for the material and using learning media as learning aids, and making seating arrangements for students and giving questions.
Teacher readiness in accommodating the TPACK framework to meet teacher competence the 21st Century
Authors: Sarwa  , Simaremare Aman , Hasibuan Novi Indah , Priyadi Mintoro
Published: June 2020

One of the advantages of digital technology (internet) as the 21st century characterizes learning is the availability and accessibility of teaching materials. The purpose of the study was to formulate specific competencies and measure the readiness of teachers to face 21st-century learning. Based on four teachers’ competencies and three TPACK components, it has been defined as a specific competency attribute for 21st-century teacher competences. The research phase begins with the FGD process and concludes with expert justification. 21st Century teacher formula tested through survey techniques to get the level of acceptance or readiness of teachers in the field. The survey was conducted on 360 teachers in North Sumatera. The level of teacher acceptance was descriptive analysis. The results of this study are the competency profiles of 21st-century teachers who are based on digital learning and are synched with the TPACK framework. The teachers in North Sumatera received and ready to face 21st-century learning. Data collection is done through online surveys. Data analysis using descriptive analysis. The results showed that teachers in North Sumatra were ready to face the demands of 21st-century learning.
Item analysis of teachnological pedagogical content knowledge (TPACK) in pre-service chemistry teachers using the Rasch Model application
Authors: Lestari Wahyuni Tri , Saputro Sulistyo , Masykuri Mohammad , Hastuti Budi , Ulfa Maria , Mulyani Sri , Yamtinah Sri
Published: June 2020

This research aims to analyze TPACK items using the Rasch model in terms of validity, reliability, item difficulty and bias items. The method used is descriptive quantitative with 34 pre-service chemistry teachers in semester VI consisting of 26 female students and 8 students from Sebelas Maret University (UNS). The instrument used in this study was the matter of Teachnological Pedagogical Content Knowledge (TPACK) which was adapted from the PPG Teachnological Pedagogical Content Knowledge (TPACK), which consisted of 30 multiple choice questions. The results showed that: 1) the validity of the suitability level of items was 27 questions that were fit and 3 questions that were not fit. 2) the results of raw variance data of 33.5% indicate that the requirements for Raw variance explained by measures of at least 20% can be met and the variance that cannot be explained by the instrument of 8.2% also meet the criteria ie, not to exceed 15%. 3) Reliability of pre-service chemistry teachers is 0.52 in the weak category, item reliability is 0.90 in the good category and reliability between pre-service chemistry teachers and items 0.64 in the sufficient category. 4) The level of difficulty of the questions is very difficult, difficult, easy, very easy and is dominated by questions that are categorized as difficult. 5) there are no questions that have a probability of less than 5% so there are no biased items. In conclusion, TPACK item analysis using the Rasch model is valid, reliable, item difficulty is very good and there are no biased items. So the questions that have been analyzed can be used to measure TPACK on pre-service chemistry teachers.