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Didit Budi Nugroho
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Journal of Science and Science Education
Published by Universitas Kristen Satya Wacana
ISSN : -     EISSN : 25983830     DOI : 10.24246
Core Subject : Science, Education,
Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Mathematics Physics
The Journal of Science & Science Education (JoSSE) publishes academic articles of conceptual, experimental, philosophical, theoretical and applied results, and reviews in the field of mathematics and natural sciences from the following subject areas: - Biology & Biology Education - Chemistry & Chemistry Education - Physics & Physics Education - Mathematics & Mathematics Education - Statistics - Computer Science.
Arjuna Subject : Umum - Umum
Articles 35 Documents
 1   2   3   4 
Prototype of sliding whiteboard as physics learning media based on thinking processed review Marthen Billy Jesajas; Ferdy Semuel Rondonuwu; Wahyu Hari Kristiyanto
Journal of Science and Science Education Vol 2 No 1 (2018): JoSSE Vol. 2 No. 1 (May 2018)
Publisher : Faculty of Science and Mathematics, Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24246/josse.v2i1p7-11

Abstract

Whiteboard is one of the learning medias used by the teacher in classroom. It has a great role in physics teaching and learning process. As media of learning, a whiteboard also has an important role in students’ thinking process. This paper discussed about the design of sliding whiteboard based on students’ assimilation of thinking in information processing that written on the whiteboard. The result of sliding whiteboard designs served as a prototype. The prototype was made from 10 cm x 18 cm plywood and rope as a slider. This prototype is expected to became an alternative model in addition to fix stage or theater seat model. In addition, the whiteboard sliding model will be accompanied by a module and user manual. Impact of the prototype on student learning was discussed.
Design of measuring flow velocity device for liquid fluid with venturi meter principles based on Arduino Rendi Hadi Perdana; Nur Aji Wibowo; Made R. S. S. N. Ayub
Journal of Science and Science Education Vol 2 No 1 (2018): JoSSE Vol. 2 No. 1 (May 2018)
Publisher : Faculty of Science and Mathematics, Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24246/josse.v2i1p13-20

Abstract

Fluid flow velocity in physics can be found on the principle of venturi meter. The Fluid flow concept is easy to understand if visualized. We need a learning media of fluid velocity, so the concept can understanding. Design of this tool aims to help students understand the fluid flow velocity. Data is taken automatically by Arduino-based water flow sensor, with speed change at the speed knop. Based on the design result of the tool which can be obtained by measuring the fluid flow velocity at a speed greater than 0.36 m/s, and proved by graph analysis logarithmic between velocity values of magnitude theory (Vtheory = 0.5x + 0.7934 m/s ) and tool speed (Vtool = 0.5825x + 1.129 m/s). The speed difference between the theory and the tool indicates the magnitude of the frictional speed due to the turbulent flow. So it can be concluded the design of this tool can be used as a learning media to help students in understanding the topic of fluid.
Applying venn diagram to present bloom’s cognitive level of students of a physics learning about light refraction using developed independent lab work module and PhET simulation “bending light” Nurul H. Astuti; Debora Natalia Sudjito; Diane Noviandini
Journal of Science and Science Education Vol 2 No 1 (2018): JoSSE Vol. 2 No. 1 (May 2018)
Publisher : Faculty of Science and Mathematics, Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24246/josse.v2i1p21-28

Abstract

Evaluation shows the effectiveness of teaching and learning of a class. Mostly teachers provide evaluation in low cognitive level so students are able to achieve the minimum passing grade. Whereas a good evaluation should use Bloom’s Taxonomy as a basis for classifying student’s cognitive level. It leads teacher to provide a learning that facilitates student’s achievement of high cognitive level, including using independent lab work module. Teachers also typically provide a global report evaluation, i.e. providing the final score only, without presenting the distribution of students’ cognitive level. For this purpose, Venn Diagram is used to show the distribution of students’ cognitive level based on Bloom Taxonomy. This research aimed to present the distribution of students’ Bloom cognitive level using Venn Diagram and to investigate whether the development of independent lab work module about light refraction using PhET simulation “Bending Light“ can make students achieve the cognitive levels of knowing, understanding, applying, and analyzing. The obtained data was analyzed using qualitative descriptive method. The respondents were 17 freshmen of Physics Education and Physics Students of UKSW Batch 2016. The post-test showed that all students achieved higher cognitive levels. Thus, the developed independent lab work module was able to improve students’ cognitive level. Venn Diagram could also simplify the presentation of the distribution of students’ Bloom cognitive level for teachers.
Characteristics of daily rainfall over the Maritime Continent Suaydhi Suaydhi
Journal of Science and Science Education Vol 2 No 1 (2018): JoSSE Vol. 2 No. 1 (May 2018)
Publisher : Faculty of Science and Mathematics, Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24246/josse.v2i1p29-39

Abstract

Daily rainfall characteristics is important in the anticipation of natural hazard events, such as floods and landslides. In this study, daily rainfall data from the Global Precipitation Climatology Project One Degree Daily (GPCP1DD) dataset are used to analyze the rainfall frequency, intensity and extreme rainfall indicators over the Indonesian Maritime Continent. A threshold of 1 mm is used to define a wet day. The analysis is conducted over the whole domain and several sub domains. It is revealed that the rainfall patterns over Indonesia are shaped by the frequency distribution of rainfall intensity over different seasons. Heavy rainfall (greater than 15 mm/day) generally determines the rainfall peak season over a specific region. It is also shown that the land areas receive more frequent and more intense rainfall than the ocean areas.
Utilizing case study to understand elementary geometry: A practical approach Hantoro Ksaid Notolegowo
Journal of Science and Science Education Vol 2 No 1 (2018): JoSSE Vol. 2 No. 1 (May 2018)
Publisher : Faculty of Science and Mathematics, Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24246/josse.v2i1p41-45

Abstract

In contrast to the branches of mathematics in general that require only analytical skills through formula calculation, geometry requires other skills in the form of visual ability to understand. The student's analytical skills can be enhanced by theoretical learning methods. However, theoretical learning method will not be optimal in improving the visual ability. Another method is required that can encourage students' analytical and visual abilities. The learning method that suits these needs is a case study. The case study method in geometry lessons can be applied by creating scenarios that are divided into two stages: the preparation stage and the implementation stage. The preparation stage is related to the formulation of scenarios of case studies that will be conducted by the students in the field, while in the implementation stage the students conduct direct observation in the field based on the case study scenario at the preparation stage and then present the observation result through the presentation, accompanied by suggestion and evaluation from teachers.
Increasing Students’ Communication Skills Using Stimulant Question Model Eklesias Donesi Andresta; Marmi Sudarmi; Alvama Pattiserlihun
Journal of Science and Science Education Vol 2 No 2 (2018): JoSSE Vol. 2 No. 2 (November 2018)
Publisher : Faculty of Science and Mathematics, Universitas Kristen Satya Wacana

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

Abstract

The purpose of this study is to make Lesson Plan using stimulant questions that emphasize the communication skills. This research uses CAR method of teacher type as researcher. Respondents from this study were 27 8th grade students of SMP in Salatiga. This research used 5 Lesson Plans with 5 materials. The results indicated that by giving stimulant questions, observers said that 89.22% students were more focused on learning indicated by active students who answered stimulant questions, supported by the results of the questionnaire where 89.34% students said that stimulant questions were in an order, logical, easy to understand, and can help them in solving various problems and the stimulant questions can improve their understanding of physics learning. In addition, the evaluation test results also indicated that 87.18% students understood the material. Therefore, stimulant questions can make students to be focused more and can make them understand the learning materials better.
The Use of Understanding by Design in Designing the Physics Lesson Plan about Newton’s Second Law Jessica R. Setyanto; Debora Natalia Sudjito; Ferdy Semuel Rondonuwu
Journal of Science and Science Education Vol 2 No 2 (2018): JoSSE Vol. 2 No. 2 (November 2018)
Publisher : Faculty of Science and Mathematics, Universitas Kristen Satya Wacana

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

Abstract

Learning objectives, learning evaluation, and learning steps are the essential components in a lesson. They have to be interconnected to provide a qualified learning for students. Physics learning about Newton’s Second Law faced problems in connecting those learning components. This study aims to make an alternative design of physics lesson about Newton's Second Law using Understanding by Design (UbD). The lesson plan and the review sheet were submitted to three reviewers. All data collected from the review sheet were analyzed using a descriptive qualitative method as the basic to revise the initial design into a better final design. The design was revised based on the recommendations of the reviewers. UbD can be used as an alternative design of physics lesson about Newton's Second Law. Designing a lesson using UbD is helpful in connecting the objectives, steps, and learning evaluations so that the students can achieve the objectives of the lesson.
Comparison of Parameter Estimation Methods to Determine the Frequency Data Magnitude of Aftershock in Nabire, Papua Alvian M Sroyer; Tiku Tandiangnga; Felix Reba; Ishak Semuel Beno
Journal of Science and Science Education Vol 2 No 2 (2018): JoSSE Vol. 2 No. 2 (November 2018)
Publisher : Faculty of Science and Mathematics, Universitas Kristen Satya Wacana

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

Abstract

Many researchers use Weibull distribution to analyze wind speed data parameters and so forth, but in this research Weibull distribution is used to analyze the frequency data magnitude of aftershock. We use different methods for estimating Weibull distribution parameters. Some methods are compared according to the mean square error (MSE) criteria to select the best method. The parameter estimation results from the data are then used to determine the mean and magnitude of the earthquake. Further data is depicted in a curve for analysis. The case study in this study uses an aftershock frequency data in Nabire district, Papua. After the test of conformity with Kolmogorov-Smirnov test, it is obtained that the data follows the Weibull distribution pattern. Further research results show that the best method among the three methods is the maximum likelihood method (MLE). Keywords: Weibull, Maximum Likelihood Method (MLE), Least Squares Method (LSM), Graphical Method, Kolmogorov Smirnov, Magnitude
Description of teacher professional competency by using media and learning resources in SD Muhammadiyah Demangan Yogyakarta in the Industry Era 4.0 Nur Hidayah; Mona Sholihah
Journal of Science and Science Education Vol 3 No 1 (2019): JoSSE Vol. 3 No. 1 (May 2019)
Publisher : Faculty of Science and Mathematics, Universitas Kristen Satya Wacana

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Abstract

In an effort to improve the quality of education in Indonesia, one of which can be done by increasing and developing the professional competence of teachers in the industrial age 4.0. This study aims to describe the ability of teachers to use media and learning resources as well as the barriers faced by teachers in using the media and learning resources in SD Muhammadiyah Demangan. This research is a descriptive qualitative research. Data collection methods used i.e., interview, observation and documentation. Data analysis in this research with the reduction of data, display data, and the withdrawal of the conclusion. Test the validity of the data using triangulation techniques and sources. The results showed that (1) the ability of teachers to use instructional media such as print, visual, audio-visual and games are already good just for the media game is rarely used because of the time limitations. (2) the ability of teachers using learning resources such as message/content, people/teachers, material/software,tools/hardware, engineering and the environment is already good. (3) the obstacles facing teachers namely time, funding, networking internet, interest, capabilities, characteristics and level of understanding of different students and students who do not focus or not. In addition to enhancing the competence of a teacher who is a professional in the industry 4.0 minimum teacher also has the capability of 4 c i.e. Communication, colaboration, critical thingking, and creativitas thingking in an effort to improve the quality the teachers themselves.
Modeling of Three Crossroad Traffic Flow Queuing Systems Using Max-Plus Algebra Margaretha Nobilio Pasia Janu
Journal of Science and Science Education Vol 3 No 1 (2019): JoSSE Vol. 3 No. 1 (May 2019)
Publisher : Faculty of Science and Mathematics, Universitas Kristen Satya Wacana

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

Abstract

This study aims to determine the model of the traffic flow queuing system of three crossroads, that is the Monjali, Kentungan, and Gejayan crossroad in Yogyakarta using max-plus algebra. This research is based on data on traffic flow density, especially cars and traffic light duration data on the three crossroads. Then, an image is drawn describing the condition of the crossroad and representing the direction of the movement of the car especially in the direction of Monjali to Gejayan. The model is then compiled which includes the waiting time of the car when the red lights are on, the time the car leaves the crossroad during the green light, and the travel time of the vehicle crossroad with max-plus algebra, so that the total length of time from Monjali to the Gejayan crossroad can be determined. The results of the study show that the queue system can be modeled using max-plus algebra. Furthermore, it can be determined the waiting time, the time to leave the intersection, and the total time needed to cross from the Monjali to exit at Gejayan.

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