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INDONESIA
Jurnal Scientia
Published by SEAN INSTITUTE
ISSN : 23020059     EISSN : 27237486     DOI : -
Core Subject : Education,
Education Mathematics
Scientific Journal is a publication by Sean Institute, which is devoted to the field of education with the topic of Learning Effectiveness studies, Analysis of Learning Influences, Application of Learning Models and the development of instructional media; we also invite the teachers, researchers, and students to send the writings. issued two within one year, namely until February and August.
Arjuna Subject : Umum - Umum
Articles 1,534 Documents
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THE EFFECT OF QUANTUM LEARNING METHOD IN IMPROVING WRITING ABILITY IN DESCRIPTIVE TEXT AT EIGHT GRADE OF SMP NEGERI 27 MEDAN Sondang Sinaga; Fenty Debora Napitupulu; Sahat Taruli Siahaan
Jurnal Scientia Vol. 12 No. 04 (2023): Education, Sosial science and Planning technique, 2023, Edition September-Nov
Publisher : Sean Institute

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Abstract

The study's goal is to determine how the Dictation Method affects the writing abilities of students at SMP Negeri 27 in Medan. This study's research methodology was an experimental quantitative design. Students in grades VIII from SMP Negeri 27 in Medan, make up population of this study. The research's sample consists the VIII 5 and 6 classes, which were chosen at random. As the control group, the second group consists of 42 pupils. Pre-test and post-test are the two separate tests. The t-test procedure was used to examine the data in order to determine whether the Quantum method has an impact on students' writing abilities. The analysis's findings indicate that the t-test was and t-table was 1.7011 (p-0,05), it was concluded that the t-observed > t-table (8, 1710>1,7011). The higher score was found by applying Quantum technique. It means that the application of Quantum technique affected significantly on the skill of writing descriptive text. It means that the alternative hypothesis was accepted and null hypothesis was rejected.
ANALYSIS OF SOCIAL, MORAL, AND EDUCATIONAL VALUES IN POLLYANNA NOVEL BY ELEANOR H. PORTER Natalina Simanjuntak; Rina Octavia Simarmata; Sahat Taruli Siahaan
Jurnal Scientia Vol. 12 No. 04 (2023): Education, Sosial science and Planning technique, 2023, Edition September-Nov
Publisher : Sean Institute

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Abstract

This study aims to determine (1) the social, moral, and educational values contained in the novel "Pollyanna" by Eleanor H. Porter. (2) the most dominant value of the three values found in the novel "Pollyanna" by Eleanor H. Porter. This study used descriptive qualitative method. The data source is the novel "Pollyanna" by Eleanor H. Porter and the data is in the form of all the sentences in the novel. Data collection techniques in this research used library research, reading techniques, and note-taking techniques. Data analysis carried out in this study was in the form of classifying of data and describing data one by one in the form of paragraphs. The results of this research found that in the novel "Pollyanna" by Eleanor H. Porter there were 36 frequencies of types of social values with percentages (27.5%), 59 frequencies of moral values with presentations (45%), and 33 frequencies of educational values with presentations (27.5%). So of the three values contained in the novel "Pollyanna" by Eleanor H. Porter, the most dominant values in it are moral values with a frequency of 59 and presentation (45%).
A CHLORINE PRODUCTION IN A CHLORINE PLANT SYSTEM USING AC AND DC CURRENT AT THE PANGKALAN SUSU M Yuda Prahmana Putra; Solly Aryza; Zulkarnain Lubis
Jurnal Scientia Vol. 12 No. 04 (2023): Education, Sosial science and Planning technique, 2023, Edition September-Nov
Publisher : Sean Institute

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Abstract

In a Steam Power Plant system. there are problems in the production process, requiring a cooling system that is used for work efficiency, namely circulation (steam recycling), and cooling the motor and pump using the natural temperature of sea water. In this research, we discuss the chlorine cooling system, so we need a system that can prevent marine biota from entering the cooling water circulation system, namely by providing high levels of chlorine liquid to the sea water intake (intake), which can expel biota . , and kill the moss. Therefore, it is necessary to create a Chlorination System Simulation at Steam Power Plants (PLTU), the aim of which is to maintain the efficiency of the system so that it works better.
ANALYSIS OF THE CAUSES OF DECREASED LUBRICATING OIL PRESSURE IN THE TONASA LINES XII AIRCRAFT CARRIER ENGINE Eko Nugroho Widjatmoko; P Marcello Lopulalan; Driaskoro Budi Sidharta; Eko Prasetio
Jurnal Scientia Vol. 12 No. 04 (2023): Education, Sosial science and Planning technique, 2023, Edition September-Nov
Publisher : Sean Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58471/scientia.v12i04.1999

Abstract

The lubrication system on the main engine plays a crucial role in maintaining optimal engine performance during operation. Its function is to lubricate moving engine components, lower engine temperature, reduce vibration, and protect core components from corrosive substances so that engine performance will always be maintained and can support the smooth operation of the ship, from the researcher's observation of the mother machine in KM. Tonasa Lines found that the main engine had a problem with the lubricating oil part, namely the dropped lubricating oil pressure. This study is directed to determine the cause, impact of the pressure drop, and handling steps so that the main machine can work normally again. This study applied the FTA (Fault Tree Analysis) method to understand the causes and effects of decreased lubricating oil pressure. The results showed that the decrease in lubricating oil pressure was caused by a pump not functioning optimally and blockages in the lubricating oil filter. This results in inefficient lubrication of the main engine. Decreased lubricating oil pressure that reaches 2.0 kg/cm2 increases the main engine's temperature. The recommended solution to restore the lubricating oil pressure to the normal pressure of 3.0 kg/cm2 is to add lubricating oil to the degraded/reduced Lubricating Oil Tank. In addition, it is important always to ensure the cleanliness of lubricating oil filters, monitor pump RPM through routine maintenance, and document any incidents in log books.
LANGUAGE ACQUISITION PROCESS OF A FOUR-YEAR CHILD Cloudya Sihombing; Alemina Br. Perangin-angin
Jurnal Scientia Vol. 12 No. 04 (2023): Education, Sosial science and Planning technique, 2023, Edition September-Nov
Publisher : Sean Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58471/scientia.v12i04.2000

Abstract

The research aimed to examine the first language acquisition of a four-year-old child from a phonological, morphological, and semantic perspective. This study used descriptive qualitative research, and the subject and object were taken from a 4-year-old child. Indeed Sheza Kanaya was the subject chosen by the researchers, and they collected the data by observing her and recording her. The analysis led the researchers to the conclusion that Sheza had appropriate communication skills. For a child to develop language, parents play a crucial role. To understand their child's language development, parents should establish interactions with their kids. In addition, the researchers advise parents to teach their kids the proper pronunciation.
TEACHING PRONUNCIATION OF FRICATIVE AND AFFRICATE SOUNDS THROUGH ENGLISH SONGS AT EIGHTH GRADE STUDENTS OF UPT SMP N 37 MEDAN Talenta Br Tanggang; Rina Octavia Simarmata; Usman Sidabutar
Jurnal Scientia Vol. 12 No. 04 (2023): Education, Sosial science and Planning technique, 2023, Edition September-Nov
Publisher : Sean Institute

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Abstract

The aims of this research was to describe the students’ pronouncing fricative and affricate sounds through English songs. Many factors affect success or failure as a result of the teaching-learning process, especially in pronunciation. One of them is the environment or situation where and how is the teaching-learning process done. In many cases, the learning process is uninteresting because the technique used by the teacher, or the way the teacher delivers the materials is not attracting the students. This research was conducted at UPT SMP N 37 Medan. The population of this research was the XII grade students of academic year 2023/2024. There were 6 classes consisting of 180 students. The sample is divided into 1 class consisted of 30 students were taken by using random sampling technique. In completing the analysis, the researcher uses descriptive qualitative as the research method of the analysis. The instruments of collecting the data was a pronunciation test, recording, and transcribing. The results of this research showed that there are that the students excellent or good in pronouncing fricative sounds (14,7%) and almost correct or poor pronouncing affricate sounds (2,15%).
THE EFFECT OF USING CROSSWORD IN TEACHING VOCABULARY AT THE EIGHTH GRADE OF SMP HKBP SIDORAME MEDAN Diana Lamjunida Siregar; Nurhayati Sitorus; Febrika Dwi Lestari
Jurnal Scientia Vol. 12 No. 04 (2023): Education, Sosial science and Planning technique, 2023, Edition September-Nov
Publisher : Sean Institute

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Abstract

This study aims to know whether the use of crossword in teaching vocabulary. The researcher conducted the research at SMP HKBP Sidorame Medan. This study was carried out by Quasi-Experimental research. The object of this study was the eighth grade students at SMP HKBP Sidorame Medan. The sample of this study amounted to 20 people consisting of an experimental and a control group, with a total of 10 students for each group. To collect the data researcher used vocabulary test in pre-test and post-test. After collecting the data, the author analyzed the data. The results of this study can be seen as follows: t-count > t-table (p = 0.05) with degree of freedom (df) = 18. This means that 4.57388216>1.734 (p=0.05) with df 18. This means that the use of crossword in vocabulary teaching has a significant effect to the student at the eighth grade of SMP HKBP Sidorame Medan. Based on the results of data analysis, the experimental class students achieved better scores (from 60 to 79.5) while the control class results only showed a slight improvement (from 54.5 to 65). It can be concluded that the use of crossword puzzles is successful in teaching vocabulary to students at the eighth grade of SMP HKBP Sidorame Medan. So, teachers in schools can use this teaching method in teaching vocabulary.
THE SIGNIFICANT EFFECT OF TASK-BASED GROUP ACTIVITIES ON STUDENTS' COLLABORATIVE BEHAVIOR IN READING CLASS OF EIGHTH GRADE AT SMP HKBP PADANG BULAN MEDAN Helen Patricia Sitanggang; Yessy Octavianna; Carolina Pakpahan
Jurnal Scientia Vol. 12 No. 04 (2023): Education, Sosial science and Planning technique, 2023, Edition September-Nov
Publisher : Sean Institute

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Abstract

This study was intended to determine the significant effect of Task-Based Group activities on students' collaborative behavior in reading class. The objectives of this study was to find out whether there is a significant effect of Task-Based Group activities on students’ collaborative behavior in reading class of Eighth Grade at SMP HKBP Padang Bulan Medan, used a quantitative experimental research design. The population of this study were eighth grade students of SMP HKBP Padang Bulan Medan, grades VIIIA and VIIIB. The number of students is 40 students as a sample for each class consisting of 20 students. Students were divided into two groups, namely the experimental group and the control group. The experimental group was given treatment (Task-Based Group Activities), while the control group was taught conventional methods. The instrument used to collect data is a multiple choice test. Data were analyzed using the t-test formula. The results of the analysis show that to be served is higher than t-table (5.81 > 1.27) at a significance level of 0.05 with degrees of freedom (df) 38. This means that the use of Task-Based Group Activities in the teaching and learning process has succeeded in influencing student learning scores, especially in class reading descriptive text.
THE EFFECT OF LISTEN-READ-DISCUSS (LRD) STRATEGY ON STUDENTS READING COMPREHENSION AT CLASS X SMA HKBP SIDORAME MEDAN Moralina Napitupulu; Yessy Octavianna; Carolina Pakpahan
Jurnal Scientia Vol. 12 No. 04 (2023): Education, Sosial science and Planning technique, 2023, Edition September-Nov
Publisher : Sean Institute

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Abstract

The study examines how the Listen-Read-Discuss method affects students' success in reading comprehension. An experimental quantitative design was employed in this investigation. Pupils in grade X at SMA HKBP Sidorame Medan, totaling 40, made up the study's population. Each class averaged 20 pupils. The experimental group and the control group were each made up of two students. While the control group received traditional instruction, the experimental group received instruction using the Listen-Read-Discuss strategy. A multiple-choice test that was split into a pre-test and a post-test was the instrument utilized to gather the data. The t-test formula was used to assess the data. The analysis's findings indicated that the Listen-Read-Discuss strategy has a significant impact on students' reading comprehension achievement when tobserved is higher than ttable (4,65 > 2.0) at the level of significance of 0,05 and the degree of freedom (df) of 38.
THE CORRELATION BETWEEN STUDENTS’ GRAMMAR MASTERY AND WRITING ACHIEVEMENTS OF ELEVENTH GRADE STUDENTS AT SMA NEGERI 5 PEMATANG SIANTAR Lustriyani Petronella Sidabalok; Dumaris E. Silalahi; Herman Herman
Jurnal Scientia Vol. 12 No. 04 (2023): Education, Sosial science and Planning technique, 2023, Edition September-Nov
Publisher : Sean Institute

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Abstract

The research is aimed to find out the correlation between students’ grammar mastery and writing achievement at SMA Negeri 5 Pematang Siantar. The grammar test is multiple choices (past tense), and the writing test is writing recount text. This research is the quantitative non-experimental research with the correlational research design. The population is the grade XI of SMA Negeri 5 Pematang Siantar with the total of 360 students. The sample is only one class (XI Science3). There are 36 students determined using the purposive sampling technique. Grammar mastery is the independent variable and writing achievement is the dependent variable. The technique of analysis data in this research calculating correlation coefficient using pearson product moment formula technique through manual with formula rxy. The result of this research showed an average of students’grammar mastery value is 67.44 and average of writing recount text is 66.88. On the calculating correlation coefficient, this research has a very strong correlation. Interpretation correlation is between 0.80-1.00. Because the correlation coefficient is 0,976 and the rtable in the degree of significances 1% (0,262). rxy= 0,976. T table 2,034 > t count= 0.262. It means that the null hypothesis (H0) is rejected and automatically the alternative hypothesis (H1) is accepted. It can be conclude that there is significant correlation between students’ grammar mastery and their achievement in writing recount text at second grade of Science3 at SMA Negeri 5 pematang Siantar. The data showed this research has a positive correlation. Because students has low score in grammar also has a bad score in writing recount text and the contrary.

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