bluuebunny/crossref_metadata_2025_split huggingface dataset:
Model of Jigsaw Type Cooperative Learning Influence on Mathematical Reasoning Ability
Authors: Akhid Ibrahim 
Published: July 2023

AbstractÂ The purpose of this study was to determine: students' responses to the jigsaw type cooperative learning model, the ability of mathematical reasoning with the application of a jigsaw type cooperative learning model, the effect of applying the jigsaw type cooperative learning model to mathematical reasoning abilities. Data collection techniques used were questionnaires and tests. The population is all students of MTs Al-Munawwir. The research sample is class VII with the sampling technique using cluster random sampling. The results of this study are obtained a positive response to the use of the jigsaw cooperative learning model of 77.10% and the average value of mathematical reasoning ability is 76.54. After testing the hypothesis, it is obtained that tcount(2,375) > ttable(1,708), then Ho is rejected and Ha is accepted, meaning that there is an effect of the application of the Jigsaw type cooperative learning model to the ability of mathematical reasoning. Regression equation Å¶=33.127+0.447 X.
Improving Students Mathematical Critical Thinking Ability and Self Regulated Learning Using Open-Ended Approach
Authors: Yulianti Yanti , Sumarmo Utari , Kustiana Asep 
Published: July 2023

This study is an experiment with pretest postest control group design having a goal to examine the role of open-ended approach Â (OEA) on enchancing studentâ€™s mathematical critical thinking ability Â (MCTA) andÂ mathematical self regulated learning Â (MSRL). Sample of this study are 59 seventh grade students from two classes selected randomly from 5 classess in in a Junior Â High School in Garut. Instruments of this study were an essayÂ MCTA test, and a MSRL Likert model scale. The study found on MCTA and on MSRL students getting treatment with OEA obtained higher grades than the grades of students taught by SA. The first group students attained MSCA and MSRL at fairly good grade level, while the second group students obtained at medium grade level, and they still encountered some difficulties on solving MCTA tasks. Besides that, the study also found Â there is high asociation between MCTA and MSRL Â and student performed active learning during OEA lessons.Keywords: mathematical critical thinking ability, self-regulated learning, open-ended approach
The Role of Problem Solving Approach on Improving Students' Communication Ability and Self Efficacy
Authors: Resnawati Resnawati , Sumarmo Utari , Kustiana Asep 
Published: July 2023

This study is a pretest-posttest experiment control group design having a goal to analyze the role of in problem-solving approach (PSA) on students' mathematical communication ability (MCA) and self-efficacy in mathematics (MSE). The study involves 66 eighth grade students, and MCA test, and an MSE scale. The study revealed that PSA took a better role than SA in obtaining MCA and MSE. Students getting treatment with PSA obtained MCA and MSE were at good grade quality, while students taught by SA attained MCA and MSE were at pretty good grade level. Besides that, the study found there was a very high association between MCA and MSE. Like that, students expressed a positive opinion on PSA, even if, students still realized a few difficulties in solving MCA.Â Keywords: mathematical communication, self-efficacy, problem-solving approachÂ
Implementation Comic Life Learning Media for Class VII to Improve Studentsâ€™ Mathematical Communication and Mathematical Disposition Ability
Authors: Safitri Anggie Munthia , Rohaeti Euis Eti , Hidayat Wahyu 
Published: July 2023

The purpose of this research is to see how effective the learning media that have been designed are. The method used in this research stage is development research, in which learning media based on the Comic Life assisted set materials are developed.Â Â This Study included 54 students from Bandung and 114 students from Ngamprah Subdistrict from the Junior High School association VII grade level. In the development of media, there are four stages of research namely define; design; develop; disseminate. The stage result in an average data validation of the material expert of 76.3% for the first stage and 80.8%% for the second stage. Stage I validation findings were 53.3%, stage II validation was 74%, and stage III validation was 81%. Student replies of 76% and instructor responses of 78% revealed the findings of the validation in limited trials and broad trials. Meanwhile, 79.5% of student responded positively during product testing. The level of efficacy of learning media utilizing Comic Life is attained with an N-Gain of 0.34, implying that the level of effectiveness of Comic Life assisted learning is quite effective. According to the findings of the mathematical communication and disposition exam, students who study using the Problem Based Learning approach with Comic Life have a better-mathematical abilities than those who learn conventional learning. In terms of mathematical disposition, it can be determined that students who utilize the Comic Life assisted Problem Based Learning technique have a better mathematical disposition than those use conventional learning. This development research is based on the learning design produced and the characteristics of students.
The Development of Android-Based Open-Ended Approach Teaching Materials on Squares and Triangles
Authors: Permana Neda , Hendriana Heris , Kurniawan Rudy 
Published: July 2023

In industrial revolution 4.0, education must follow and utilize information and communication technology. Android is an operating system on mobile devices, and Indonesia's most popular and widely used mobile device operating system. The Open-Ended approach is an approach in mathematics learning that provides opportunities for students to explore open problems with various strategies for solving problems. One problem that often arises in learning in schools is the study of the anchovies of each textbook varies, and the material contained in the book does not match the characteristics of the students.Â To realize this, the world of education needs to implement the use of e-Modules. Seeing this problem, the development of an android-based e-Module with an open-ended approach is required.Â Research and development with the ADDIE model is this type of research. The subjects of this study were as many as 15 middle school students in grade 8 for limited tests and 30 students for a broader test. The research aimed to produce Android-based electronic teaching materials with an open-ended approach to square and triangular materials. The resulting product is an e-Module in the form of an android package kit (APK).Â The result of the study concluded thatÂ the development of teaching materials with an android-based open-ended approach went well with the practicality test results obtained by 83%, which means that the teaching materials are efficient to use and got 86.6% in the effectiveness test, which means that the teaching materials developed are suitable for use.
WRITING A FANTASY STORY WITH DESCRIPTION TEXT ELEMENTS AND PROCEDURE TEXT USING THE COMPUTATIONAL THINKING APPROACH
Authors: Lestari Sri , Ramdani Riki Tata , Permanawati Dewi 
Published: July 2023

The background of this research contains higher-order thinking skills to prepare students in the industrial revolution 4.0, can think at a high level using a computational thinking approach as an alternative in sustainably preparing students. The purpose is to determine student learning outcomes to write fantasy narrative text with elements of description text and procedure text, to stimulate using of computational thinking approach in junior high school. Using a research method with a descriptive approach that describes the results of the study in detail, the instruments used in the form of tests, observation, and documentation. The results of 10 students were able to apply the category of HOTS very well, by writing it, 8 students were able to make a combination of the text but were nice, and 2 students were able to create the text although there were still many things that had to be improved, the average acquisition value from 45.10 to 78.45 means an increase of 33.35 points. By applying computational thinking the ability to solve problems and higher-order thinking skills of students increases.Â Keywords:Â Text Description of Fantasy Procedures, HOTS, Computational ThinkingÂ Â
Application of A Contextual Approach to Students' Learning Outcomes in Pandemic Times
Authors: Saadah Siti Habibah Noor , Wikanengsih Wikanengsih , Nurhayati Enung 
Published: July 2023

Â ABSTRACTIn the interest of increasing student understanding, teachers are expected to be able to select and sort out various methods, models, and approaches that are appropriate to current circumstances. Applying an appropriate learning approach is expected to minimize boredom in learning activities. The purpose of this study is that teachers are expected to be able to apply a contextual approach to the learning outcomes that will be obtained by students. The method used in this research is descriptive statistical analysis, which describes learning outcomes through data in the form of diagrams taken from several student questionnaires and teacher interviews. The results showed that students' understanding of the material before applying the contextual approach to learning outcomes was the limited understanding of students regarding the description text material. It can be concluded that the application of the contextual approach for students needs to be improved again.ABSTRAKDemi kepentingan meningkatkan pemahaman peserta didik, guru diharapkan mampu memilih dan memilah berbagai metode, model maupun pendekatan yang sesuai dengan keadaan saat ini. Dengan menerapkan pendekatan pembelajaran yang sesuai diharapkan dapat meminimalisir rasa bosan terhadap kegiatan pembelajaran. Tujuan dari penelitian ini adalah guru diharapkan dapat menerapkan pendekatan kontekstual terhadap hasil belajar yang akan diperoleh peserta didik. Metode yang digunakan dalam penelitian ini analisis statistik deskriptif, yaitu mendeskripsikan hasil belajar melalui data berupa diagram yang diambil dari angket sejumlah siswa dan wawancara guru. Hasil penelitian menunjukkan bahwa pemahaman peserta didik akan materi sebelum penerapan pendekatan kontekstual terhadap hasil belajar yaitu keterbatasannya pemahaman peserta didik terkait materi teks deskripsi. Dapat disimpulkan bahwa penerapan pendekatan kontekstual bagi peserta didik perlu ditingkatkan kembali.
The Effect of Learning Motivation on Writing Skills of Observation Results in The Covid 19 Pandemic
Authors: Cahyono Mateus Purbo , Sobari Teti 
Published: July 2023

The study was conducted to determine the effect of learning motivation on the results of writing observational report text (laporan hasil observasi, or LHO) skills, especially during the pandemic. The researcher makes a hypothesis that there is a significant influence on learning motivation in writing LHO texts. This research method is descriptive quantitative. The research data were processed by using a statistical package of the social sciences (SPSS) and Microsoft Excel applications. The number of samples were 32 students of class X SMAK BPK PENABUR Singgasana. The instruments used are test and non-test. The test data is the result of learning to write LHO texts, while the non-test data is the response of students to the questionnaire on the motivation to learn Indonesian. The results of the Spearman Rank test, have a significance of 0.002 and have a correlation of 0.521, meaning that between learning motivation and learning outcomes of LHO text materials, there is a moderate level relationship. The direction of the relationship between variables is positive. It can be explained that high learning motivation will produce high learning scores as well. Teachers need to give enthusiasm and present interesting learning consistently so that the students can be more motivated and obtain good learning outcomes as well.Â Â ABSTRAKÂ Penelitian dilakukan untuk mengetahui pengaruh motivasi belajar terhadap hasil keterampilan menulis teks laporan hasil observasi (LHO), khususnya di masa pandemi. Peneliti membuat hipotesis yaitu terdapat pengaruh yang signifikan antara motivasi belajar terhadap menulis teks LHO. Metode penelitian ini yaitu deskriptif kuantitatif. Pengolahan data penelitian menggunakan aplikasi statistical package of the social sciences (SPSS) dan microsoft excell. Jumlah sampel adalah 32 peserta didik kelas X SMAK BPK PENABUR Singgasana. Instrumen yang digunakan yaitu tes dan nontes. Data tes adalah nilai hasil belajar menulis teks LHO sedangkan data nontes merupakan respon dari peserta didik terhadap angket motivasi belajar Bahasa Indonesia. Hasil uji Rank Spearman, memiliki signifikansi 0,002 dan memiliki korelasi sebesar 0,521, artinya antara motivasi belajar dengan hasil belajar materi teks LHO terdapat hubungan dengan tingkat sedang. Arah hubungan antarvariabel, positif. Hal tersebut dapat dijelaskan bahwa motivasi belajar yang tinggi akan menghasilkan nilai belajar tinggi pula. Guru perlu selalu memberikan semangat dan menyajikan pembelajaran yang menarik supaya siswa termotivasi dan memperoleh hasil belajar yang baik.
Product Market Competition and Strategic Disclosure of Industrial Segment-Level Information
Authors: Karuna Christo 
Published: July 2023

ABSTRACT
This study examines how several determinants of industry product market competition—product substitutability, market size, and entry costs—affect managers’ strategic disclosure of industrial segment-level information. I find evidence of an inverted U-shaped relation between competition and managerial disclosure of segment-level research and development expenditure. Competition is insignificantly (negatively) related to the likelihood of managers disclosing segment-level number of employees at low (high) competition levels. Competition is insignificantly related to disclosure of the segment-level number of employees. The study also finds that a firm’s market share interacts with competition in the industry to influence managerial disclosure. When a firm’s market share increases, managerial disclosure of segment-level information also increases, with this relation becoming stronger at higher competition levels. This study contributes to the literature by showing that the nature of product market competition and a firm’s competitive position in an industry are important determinants of industrial segment-level disclosure.
JEL Classifications: D4; L1; M40; M41.
Minat Peserta Didik dalam Mengikuti Pembelajaran PJOK pada Masa Pandemi Covid-19 di Kelas XI
Authors: Muhammad Muammar  , H. Wahjoedi  , Ni Luh Putu Spyanawati  
Published: July 2023

Kurangnya pengawasan dari guru dalam proses pembelajaran secara online. Masih banyak yang belum paham tentang pembelajaran PJOK secara online sehingga rendahnya hasil belajar peserta didik dalam mengikuti pembelajaran PJOK dimasa pandemi Covid-19. Penelitian ini termasuk kedalam jenis penelitian deskriptif dengan pendekatan kuantitatif. Metode yang digunakan dalam pengumpulan data penelitian ini menggunakan metode survei, sedangkan jenis survei yang digunakan yaitu survei kuisioner yang dijawab oleh peserta didik. Populasi dalam penelitian ini adalah seluruh peserta didik kelas XI dengan jumlah 360 orang. Sampel dipilih berdasarkan convenience sampling yang ini diambil 25% dari populasi penelitian, total sampelnya adalah sebanyak 90 orang. Analisis data yang dilakukan secara deskriptif kuantitatif. Hasil penelitian menunjukkan rata-rata skor minat mengikuti pembelajaran PJOK di masa pandemi Covid-19 pada peserta didik MAN diperoleh sebesar 70,69%. Hasil ini menunjukkan bahwa rata-rata minat mengikuti pembelajaran PJOK di masa pandemi Covid-19 pada peserta didik MAN berada pada interval 83 kurang dari 90, sehingga berada pada katagori baik. Peserta didik diharapkan untuk mempertahankan minatnya yang sudah sangat tinggi. Implikasi penelitian ini diharapkan dapat dapat digunakan sebagai acuan bagi sekolah dan guru untuk mempertahankandan meningkatkan minat serta motivasi siswa untuk mengikuti pembelajran secara daring di masa pandemi Covid 19.
Analysis of technical and economics overhead transmission line 150 kV construction from mine mouth coal fired power plant to external customer substation
Authors: Hadi Elpatra , Setiabudy Rudy 
Published: July 2023

Mine Mouth Steam Coal Fired Power Plant (PLTU) has a capacity of 2x18MW while the power supplied to internal consumers is 3.6MW or around 10% of the total generating capacity (20% of one generating unit). To operate according to its specifications, the load is increased by operating the load bank. The small internal load and use of the loadbank cause the cost of generation to be high. Excess generating capacity can be sold to external consumers outside the mining area, so it is necessary to build one circuit overhead transmission line 150kV as long 48.38km. The construction of overhead transmission line 150kV from the PLTU to the external consumer substation can increase sales of electricity and can replace the loadbank function. This study aims to evaluate the technical feasibility and economic aspects of the construction overhead transmission line 150kV from the PLTU to an external consumer substation. The research method uses financial indicators IRR, NPV and ROI. Overall, the construction of one circuit overhead transmission line 150kV can increase sales of electricity and replace the function of load bank. The NPV value is IDR 1,604,887,094 with an IRR of 12.53%, and ROI of 9.03 years.
PRODUCCIÓN DE ÁCIDO LÁCTICO (D– AL) A PARTIR DE LA SEMILLA DE AGUACATE TIPO HASS, POR LA CEPA LACTOGÉNICA Escherichia coli JU15
Authors: Camargo Velandia Laura Valentina , Retrepo Serna Daissy Lorena , Castro Montoya Agustín Jaime , Vargas Tah Alejandra 
Published: July 2023

El objetivo principal fue el estudio y caracterización físico química de la semilla de aguacate variedad Hass (residuo a emplear como fuente de carbohidratos) para la producción de ácido láctico (D– Ácido Láctico) junto a la cepa lactogénica Escherichia coli JU15, se fijaron condiciones óptimas de tiempo y concentración del ácido sulfúrico (H2SO4), como pretratamiento ácido aplicado al almidón extraído de la semilla para la recuperación de azúcares reductores. La caracterización de los materiales lignocelulósicos contemplo de cuantificación de humedad, extractivos, carbohidratos estructurales, almidón, lignina y cenizas, con el fin de conocer el potencial de trasformación de la semilla. La cuantificación e identificación de los azúcares reductores se realizó mediante HPLC. Posteriormente se realizó la fermentación con la cepa E. coli JU15 en el hidrolizado de almidón de las semillas con medio mineral AM1. Obteniendo concentración de azúcares reductores de 72,78g/L en total del pretratamiento ácido, el principal compuesto que se identifico fue la glucosa, por otro lado un mínima cantidad de ácido acético, xilosa y arabinosa el cual conformaron el hidrolizado, finalmente se obtuvo una producción de 70,28gD-AL/L en 72 horas de fermentación con una productividad volumétrica de 0,97 gD-AL/L*h y un rendimiento máximo de 96,37% del producto final.
Curriculum Implementation Approaches of Secondary School English Teachers: A Case Study
Authors: ÇELİKER ERCAN Gülçin , ÇUBUKÇU Zühal 
Published: July 2023

Purpose: The purpose of this study is to identify the curriculum implementation approaches of secondary school English teachers.
Design/Methodology/Approach: The study group of this qualitative case study consists of 14 English teachers and students studying in the classes of these teachers. In determination of the study group, maximum variation and criterion sampling was used. The data of the study was obtained by observations, interviews, document review and it was analyzed by qualitative content analysis technique with an interpretive qualitative approach.
Findings: Study results indicated that English teachers have basically three different approaches while implementing the curriculum: curriculum fidelity, curriculum adaptation and curriculum design. In each three approaches teachers make student-based and exam-based implementations. However, under the curriculum adaptation approach, the student-based and exam-based adaptations made by teachers during their implementations are philosophically so different from each other that they worth mentioning under a different sub-title as student-based adaptation and exam-based adaptation. Teachers who adopt curriculum fidelity approach tend to apply the curriculum materials without making any change while teachers with curriculum adaptation approach make some adaptations in these materials. In the student-based adaptation approach, teachers make these adaptations by taking student characteristics into account, while in the exam-based approach, the focus of the teachers is to prepare students for national exams or the exam of the course. Teachers with curriculum design approach teach in private schools and do not make use of curriculum materials during their instruction. These teachers have more flexibility in their classroom practices compared to the teachers with curriculum fidelity and adaptation approaches.
Highlights: Based on the results of this study, it can be suggested to investigate the effect of teachers’ curriculum implementation approaches on their professional development and on their students’ motivation and academic success.
The role of the Lendtech sector in the consumer credit market in the context of household financial exclusion
Authors: Waliszewski Krzysztof , Cichowicz Ewa , Gębski Łukasz , Kliber Filip , Kubiczek Jakub , Niedziółka Paweł , Solarz Małgorzata , Warchlewska Anna 
Published: July 2023

Research background: According to the World Bank (2020), about 60% of adults in developing countries do not use formal financial services. Furthermore, according to the Polish Association of Loan Institutions (2022), about 3 million Poles use loans, most of them obtained online. Among the reasons for more than a decade of growth of interest in the non-bank consumer lending market there are the development of modern technology applications in finance and the establishment of the Lendtech sector.
Purpose of the article: The main goal of the paper is to verify the role played by the Lendtech (LT) sector in the consumer credit market in the context of household financial exclusion. The following research questions were asked: Do credit-excluded households take advantage of LT services and, if so, to what extent? What are the behaviours and preferences of those who use consumer credit offered by LT? Do socio-demographic characteristics determine consumer use of loans offered by LT and, if so, what are they? Is the use of loans offered by LT due to credit exclusion or other factors? What action should be taken by participants in the digital consumer loan market interested in its inclusive direction?
Methods: The paper uses the following methods: critical analysis of the literature, Kruskal-Wallis test, Mann-Whitney test, and nonparametric regression algorithm: k-nearest neighbors, as well as inductive inference methods. The data used is primary in nature and comes from a nationwide survey, September 2022 (CAWI method) of 1,200 Poles, of whom 200 respondents are Lendtech customers. The quota selection applied made it possible to reflect characteristics corresponding to the population of customers of lending institutions registered in BIK databases.
Findings & value added: The article is a pioneering study based on an independent scientific survey, devoted to the Polish LT services market considered in terms of its relationship with one of the types of financial exclusion: credit exclusion. The most important conclusion is that people at risk of credit exclusion find a financing substitute in the LT sector, and thus it plays an important role in reducing financial exclusion, while maintaining the principle of creditworthiness verification.