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Contact Name
Nya Daniaty Malau
Contact Email
malaunyadaniaty@gmail.com
Phone
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Journal Mail Official
edumatsains@uki.ac.id
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Location
Kota adm. jakarta timur,
Dki jakarta
INDONESIA
Edumatsains
ISSN : 25277642     EISSN : 25277235     DOI : -
Jurnal EduMatSains merupakan wadah untuk menampung dan mempublikasikan hasil karya baik berupa hasil penelitian maupun kajian teori yang original dalam ruang lingkup pendidikan matematika dan pendidikan sains (fisika, kimia, biologi) serta ilmu matematika dan ilmu sains (fisika, kimia, biologi) bagi semua civitas academika khususnya dosen, guru, peneliti dan mahasiswa. Jurnal EduMatSains terbit sebanyak dua kali dalam satu tahun (Juli dan Januari). Jurnal EduMatSains diterbitkan Oleh Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia.
Arjuna Subject : -
Articles 64 Documents
Penggunaan Pasco Capstone 14.1 untuk Menentukan Koefisien Konveksi Udara dengan Metode Pendinginan Air Guswantoro, Taat
Jurnal Pendidikan, Matematika dan Sains Vol 1 No 2 (2017): Januari
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (715.495 KB) | DOI: 10.33541/edumatsains.v1i2.241

Abstract

Water cooling occurs since the heat energy of water is transferred to the air. Water is placed in a thin transparant vessel can reduce the effects of heat transfer by radiation and conduction, so the most dominant heat transfer is convection. Newton's law of cooling states that the rate of cooling is directly proportional to the temperature difference between the object and room temperature. By knowing the value of constant cooling, the air convection coefficient can be calculated. This study using three different sizes of cups, each of which is filled with hot water. In each glass inserted temperature sensors that connected to the interface, recording the temperature every 60 seconds using pasco capstone 14.1. The resulting graph was analyzed by exponential regression, in order to find the value of constant cooling, from this value can be calculated the air convection coefficient. The research result shows air convection coefficient value of W/m2OC, that mean if there is an object that has an area of 1 m2 and 1OC higher than room temperature, the thermal energy of the object will be lost of 19.9 J for each second.   Keywords: Water cooling, heat transfer, air convection coefficient.  
Pendekatan Game Android Untuk Meningkatkan Minat Belajar Matematika Siswa Sekolah Dasar Itqan, Moh. Syadidul
Jurnal Pendidikan, Matematika dan Sains Vol 2 No 2 (2018): Januari
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (437.167 KB) | DOI: 10.33541/edumatsains.v2i2.604

Abstract

Every people being is getting accustomed to using android based smartphone, not exception elementary school students. Even parents feel the hassle when asked his son to learn if using a smartphone. Therefore a new approach is needed in order for the elementary school students easily asked learning. One such approach is to use an android based smartphone as a media students learning. The method of this research is research and development method. System development used is waterfall. The purpose of this research resulted in the android game to increase interest in learning. The result of this research is android based games have been produced to increase interest in learning mathematics elementary school students.  Keywords: Game, Android, Interest in Learning
Peningkatan Hasil Belajar Kognitif Siswa dengan Menggunakan Metode Numbered Heads Together (NHT) dalam Pelajaran Biologi Kelas VII di SMPK Medan Allo, Leticya Sarung; Silalahi, Desri Kristina
EduMatSains Vol 1, No 1 (2016): Juli 2016
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Kristen Indonesia

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Abstract

Students grade VII’s cognitive learning outcomes at SMPK Medan were relatively low. It was caused by many factors, one of them was the learning method which was still conventional. Students were needed to improve their learning outcomes, so the researcher made the research with purpose was to know the improvement ofstudents’ learning outcomes by using Numbered Heads Together (NHT) method. The research methodology was used quasi experimental with nonequivalent control group design. The samples of this research were students at grade VII A and VII B. Grade VII B as experimental class and grade VII A as control class. Both of the classes were given treatment, the experimental class with NHT and control class with conventional learning. The improved of learning outcomes can be seen from the mean of N -Gain in experimental class was 0.39 in middle category and the control class was 0.09 in low category. The control class and experiment class had different learning result significantly. Based on the research, it can be concluded that this method can increased students’ learning outcomes at grade VII at SMPK Medan.
Pengaruh Performance Mahasiswa PPL terhadap Peningkatan Hasil Belajar Fisika Siswa di SMA Faradiba, Faradiba
EduMatSains Vol 1, No 1 (2016): Juli 2016
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Kristen Indonesia

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Abstract

Research has conducted student teachers’s performance influence to improving student’s learning outcomes in high school in August 2015 - January 2016. The study was conducted with 4 phases: (1).Providing pretest, posttest and questionnaires. (2). Data collection pretest, posttest and questionnaires. (3). Data processing such as coding and simple regression model . (4). Simple regression analysis and variable presentation supporting student’s learning. The correlation coefficient 0.712 (71.2%) for the relation between the two variables categorized strong. Determasi coefficient value of 0, 507 (50.7%) which describe student  teacher’s performance (X) has the effect of a contribution of 50.7% to the student’s learning outcomes (Y) and 49.30% influenced by other factors. Regression model Y = -43.507 + 2,887X.T test obtained Thitung 10,69 greater than  Ttable  1.98  which mean that there is influence student teacher’s performance toward improving student learning outcomes. F test obtained Fhitung 115.23 value greater than Ftable which mean the model is expressed well.
Pengaruh Kreativitas dalam Pembelajaran Inkuiri Berbasis Multimedia terhadap Hasil Belajar Siswa pada Pokok Bahasan Ikatan Kimia Sormin, Elferida
EduMatSains Vol 1, No 1 (2016): Juli 2016
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Kristen Indonesia

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Abstract

The purposes of the research are : 1. To determine differences in learning outcomes of student with Inquiry_based Learning in Multimedia and Conventional Learning. 2. To determine differences in chemistry learning outcomes of student who have high creativity and low creativity. 3. To determine the interaction between Inquiry based learning in multimedia with the level of creativity in improving student chemistry learning outcomes. The sample in this study conducted in  a cluster random sampling of two classes, where the first as a class experiment applied Inquiry based learning in multimedia and the second class of controls implemented Conventional Learning. The instrument used in this study is chemistry learning outcomes test in multiple choice as 30 questions that have been declared valid and reliable. The results were found: there are differences in physical students learning outcomes are taught by Inquiry based learning in multimedia and Conventional Learning. There is a difference in student’s learning outcomes that have high Creativity and Low Creativity. There is no interaction between the Inquiry based Learning in multimedia with student’s level of Creativity in improving learning outcomes chemistry.
Partikel Dirac dalam Sumur Potensial Dinamis Tiandho, Yuant
EduMatSains Vol 1, No 1 (2016): Juli 2016
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Kristen Indonesia

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Abstract

Infinite square well potential is one of the most elementary quantum mechanical system. The calculation of this case is not too complicated, however, it can show the differences between quantum world and classical world with clearly. In this letter, we expand the discussion about the infinite square well potential for dynamic potential well  by involving relativistic corrections. The dynamic potential is defined as potential wall that depend on time because the potential can moving with constant velocity. The Dirac equation is used to describe condition in the potential well. By this consideration, we hope the result will be useful in the development of nanoelectronic devices. To obtain solution of probability density of Dirac particles that depend on space and time, we transform the Dirac equation into hyperbolic coordinates and the differential equations can be solved by separation variables method.
Penggunaan Media Power Point pada Model Pembelajaran Kooperatif Tipe Numbered Head Together (NHT) untuk Meningkatkan Hasil Belajar Kimia Siswa Simatupang, Nova Irawati
EduMatSains Vol 1, No 1 (2016): Juli 2016
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Kristen Indonesia

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Abstract

Various types of models student-centered learning has increase for this time. In addition to appropriate learning models, use media for learning is expected to improve student achievement. The purpose of this research is to determine whether the learning achievement student by using media power point in cooperative learning NHT better than just using cooperative learning NHT without media on the subject of hydrocarbons. The study population was the whole class X SMA Teladan with totaling 3 class. Samples were taken at random as much as 2 class and consists of 72 students. The data of student achievement in Chemistry obtained by providing multiple-choice test with 20 questions. Hypothesis testing is done right part t-test at a significance level of = 0.05. Results of data analysis obtained by the average value of the students taught using media power point and a model cooperative pembelajran NHT (class eksperimen1) was 72.08 ± 13.80 with an increase of 56.67%, while the average value of the students taught by implementing cooperative learning NHT (class eksperimen2) was 65.28 ± 9.41 to 40.56% increase. The results showed that an treatment by using media power point on cooperative learning model NHT better than the treatment only implement cooperative learning model NHT to improve student’s achievement in Chemistry, with t-test (2.739) > t table (1.66883) for α = 0.05 and df = 68.
Meningkatkan Aktivitas Kolaboratif dan Pemahaman Konsep Mahasiswa pada Perkuliahan Fisika Dasar I melalui Lesson Study Suana, Wayan
EduMatSains Vol 1, No 1 (2016): Juli 2016
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Kristen Indonesia

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Abstract

This study aimed to increase students’s collaborative activity and conceptual understanding in Fundamental Physics I course through the implementation of lesson study in two parallel classes. Each lesson study cycle consisted of three stages, started with planning a lesson, teaching and observing the lesson, and reflecting the result, for the first class. After that, revising the lesson plans to be implemented in the second class. The results showed that students’s collaborative activities and conceptual understanding for the two classes increased from cycle I – cycle III. The average scores of first class’ collaborative activity from cycle I - cycle III were 72.0, 75.8, and 81.6, respectively while for the second class were 73.4, 78.8, and 82.6. Moreover, the average conceptual understanding for the first class from cycle I - cycle III were 42.7, 58.8, and 66.2, respectively, while the second class were 48.5, 65.5, and 66.1. The results also showed that the average collaborative activities and understanding the concept of second grade students tended to be better than students of the first class
Penerapan Pendekatan Pendidikan Matematika Realistik Indonesia (PMRI) untuk Meningkatkan Kemampuan Penyelesaian Soal Cerita pada Kelas VII A SMP UTY Idris, Invany; Silalahi, Desri Kristina
EduMatSains Vol 1, No 1 (2016): Juli 2016
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Kristen Indonesia

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Abstract

AbstractMathematical problem solving in the form of word problems is very helpful in dailystudent life because this problems always related to daily life. Problems encountered in this research, it was found that the students are less capable in solving word problems. This matter  because students had not been given exercises in the form of word problems. To improve the students ability in solving word problems, researcherapply Indonesian Realistic Mathematics Education Approach (PMRI). This research aims to determine that the application PMRI approach can enhance the students ability in solving word problems and find out how the application PMRI in mathematic. This research is a classroom action research (CAR) conducted in SMP UTY, the Christian school located in t Medan. Based on the research results obtained, it is known that the application PMRI approach can enhance the students ability in solving word problems, although indicators of success has not been achieved in this study.
Peramalan Terjadinya Gempa Bumi Tektonik untuk Wilayah Pulau Nias Menggunakan Metode Distribusi Weibull dan Eksponensial Malau, Nya Daniaty; Sitepu, Mester
EduMatSains Vol 1, No 1 (2016): Juli 2016
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Kristen Indonesia

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Abstract

Nias Island is an island located west of North Sumatra dipesisir which has a fairly high level of seismicity. This paper discusses the problem of forecasting the occurrence of tectonic earthquakes for the island of Nias, located on the site: 0º19LU - 1º82LU and 96.97 BTº- 98.53ºBB. By using the data a powerful earthquake that caused damage. Tectonic earthquake forecasting is done with method 3 parameter Weibull distribution, two parameter Gumbel distribution and exponential distribution of parameter 1. using the data as much as 47 damaging earthquakes from year 1960 to 2012, which is a major earthquake (mainshock) the magnitude of 6.0 - 9.1 SR. To calculate the waiting time distribution forecasting using a third used the software Mathematica for Windows version 8.0. Making the program requires data - input data relating to waiting times of earthquakes in the past to the present. By making this prediction program to predict the timing of the tectonic earthquake in Nias Island.So predictable subsequent tectonic earthquake in Nias island territory will occur on September 4, 2013 when predicted using the Weibull distribution with three parameters, dated April 5, 2013 if the forecast using the Gumbel distribution with two parameters and dated September 4, 2013 when predicted using the method of distribution exponential with a parameter.