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Yulisman Zega

Universitas Nias

Author-ID : 5599505

Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Nursing Physics Social Sciences Other

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Pengaruh Model Pembelajaran Treffinger Terhadap Kemampuan Komunikasi Matematis Siswa di SMP Negeri 1 Botomuzoi Yudika Zebua; Yakin Niat Telaumbanua; Yulisman Zega
Indo-MathEdu Intellectuals Journal Vol. 4 No. 2 (2023): Indo-MathEdu Intellectuals Journal
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/imeij.v4i2.210

Mathematics is a subject that must be mastered by students at school. But the reality is that SMP Negeri 1 Botomuzoi students suffer from learning difficulties because of the mathematical communication skills of the students who are still in the category. So, the student is unable to communicate his ideas and ideas without the teacher's involvement. The aim of this study was to find out the influence of Trefffinger's learning model on students' mathematical communication skills. This type of research is experimental research using experimental methods (quasy experimental research). The research population was a whole of class VIII students consisting of 4 classes with samples of 2 classes taken by random sampling, namely class VIII-3 as a control class and class VIII-4 as an experimental class. The data is collected by giving the student a mathematical communication skills test that is analyzed by guiding the student's mathematics communication ability test withdrawal. Based on the results of the research, obtained the test of the hypothesis with the value thitung = 11,687 and the value ttable = 1,67. Because thitung > ttable or 11,687>1,67 then reject Ho and accept Ha. which means “There is an effect of Treffinger's learning model on the mathematical communication skills of students in SMP Negeri 1 Botomuzoi

Pengaruh Metode Pembelajaran Brainstorming Terhadap Kemampuan Pemecahan Masalah Matematis Siswa di SMP Negeri 3 Mandrehe Barat SALOME WARUWU; Yakin Niat Telaumbanua; Sadiana Lase; Yulisman Zega
Indo-MathEdu Intellectuals Journal Vol. 4 No. 2 (2023): Indo-MathEdu Intellectuals Journal
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/imeij.v4i2.211

This research is based on a preliminary study conducted by researchers during observations at SMP Negeri 3 Mandrehe Barat. The problem is that students' mathematical problem-solving skills still need improvement. This study aims to determine whether there is an effect of brainstorming learning methods on students' mathematical problem-solving ability. This type of research uses the quasi-experimental research method involving two groups that are given different treatments. The population of this study was all VIII classes of SMP Negeri 3 Mandrehe Barat, and two classes were selected by simple random sampling as research samples, namely class VIII-A totaling 20 students as an experimental class taught using the brainstorming learning method and class VIII-B 21 students as a control class taught using conventional learning methods. Data were collected through student mathematical problem-solving ability tests. Based on this research, the results of hypothesis testing are and . Because > , then Ho is rejected, and Ha is accepted that there is an effect of brainstorming learning method on students' mathematical problem-solving ability at SMP Negeri 3 Mandrehe Barat.

Pengaruh Self-Efficacy dan Kecemasan Matematis Terhadap Kemampuan Komunikasi Matematis Siswa SMP Negeri 1 Umbunasi Intan Wirna Waruwu; Sadiana Lase; Yakin Niat Telaumbanua; Yulisman Zega
Indo-MathEdu Intellectuals Journal Vol. 4 No. 2 (2023): Indo-MathEdu Intellectuals Journal
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/imeij.v4i2.217

This study was motivated by the lack of self-confidence, fear, worry, discomfort, and nervousness of students during the mathematics learning process and the low mathematical communication skills of students. This study aims to determine the effect of self-efficacy and mathematical anxiety on students' mathematical communication skills. This type of research is correlational research with quantitative methods. The research instrumental used are self-efficacy questionnaire, mathematical anxiety questionnaire and mathematical communication ability test. The population in this study amounted to 43 people with a sample size of 39 people taken using probability sampling with simple random sampling technique. The data analysis used is multiple linear regression. Based on the results of the study, obtained in the First hypothesis the value of tcount(3.9116) >ttabel (0.0631) with H0 rejected and Ha accepted which if students' self-efficacy is higher then students' mathematical communication skills are also higher and vice versa. In the second hypothesis, the value of tcount(0.2819)>ttabel (0.0631), with H0 rejected and Ha accepted which if students' math anxiety is high then their math communication skills are low and vice versa. Concluded that the two independent variables together have a significant influence on the dependent variable with a percentage of 32.45%.

Analisis Kesalahan Siswa dalam Menyelesaikan Soal Lingkaran di Kelas VIII SMP Negeri 1 Amandraya Zebua, Viktor; Zega, Yulisman
Indo-MathEdu Intellectuals Journal Vol. 5 No. 2 (2024): Indo-MathEdu Intellectuals Journal
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/imeij.v5i2.249

This research is motivated by the lack of student errors in working on problems on circle material. Student errors are one of the student errors in working on problems in mathematics learning such as conceptual errors, principal errors, and operational errors. With the aim of knowing the mistakes that students often make in working on math problems and one of the factors of student errors, namely students not understanding the intent of the questions, students cannot apply the formulas and steps in working on these questions. This study aims to find out students' mistakes in working on mathematical math test questions in class VIII SMP Negeri 1 Amandraya. This type of research is descriptive research with a qualitative approach. This research was conducted in class VIII SMP Negeri 1 Amandraya with a total of 35 students of research information. Data collection techniques through written tests, interviews and documentation. Based on the results of the research, it showed that students made mistakes in the work on the math test questions and there were still many students who still did not know how to work on the math test questions. This research has limitations, namely the small number of students, so the types of errors made by students are not very diverse

Pengaruh Penggunaan Video Pembelajaran Terhadap Hasil Belajar Matematika Siswa di UPTD SMP Negeri 5 Gunungsitoli Zega, Hakiki Necis; Zega, Yulisman
Indo-MathEdu Intellectuals Journal Vol. 5 No. 2 (2024): Indo-MathEdu Intellectuals Journal
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/imeij.v5i2.278

One of the problems in mathematics at UPTD SMP Negeri 5 Gunungsitoli is that student learning outcomes are still low. The objectives of the study: To find out whether there is an effect of the use of learning videos on the remaining mathematics learning outcomes at UPTD SMP Negeri 5 Gunungsitoli. This research is experimental research with a quantitative paradigm. The research was conducted at UPTD SMP Negeri 5 Gunungsitoli which consisted of two classes, namely class VIII-A as the experimental class and class VIII-B as the control class which were selected by purposive sampling. The instrument used to determine learning outcomes is in the form of a description test. Data analysis techniques consist of calculating the average learning outcomes, variance and standard deviation, normality test, homogeneity test, and hypothesis testing in the form of an independent t-test. The results showed: The average pre-test learning result for the experimental class was 49.65% belonging to the less category and the control class was 31.45% belonging to the less category while the average learning result from the final test for the experimental class was 84.00% belonging to the good category and the control class is 70.03% belonging to the sufficient category. Based on the hypothesis testing obtained t_count = 7.283 and t_table = 1.671. Because t_count > t_(table) is 7.283 > 1.671, then accept Ha and reject H0. From the research results obtained, the researchers concluded that: There is an effect of using learning videos on students' mathematics learning outcomes at UPTD SMP Negeri 5 Gunungsitoli

Pengaruh Model Pembelajaran Discovery Learning Terhadap Kemampuan Literasi Matematis Siswa Hia, Oidika Mawarni; Mendrofa, Ratna Natalia; Zega, Yulisman
Indo-MathEdu Intellectuals Journal Vol. 5 No. 2 (2024): Indo-MathEdu Intellectuals Journal
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/imeij.v5i2.280

This research is motivated by the preliminary study of researchers at UPTD SMP Negeri 1 Gunungsitoli Idanoi, which is so far students are less active and tend to be passive in the learning process and students' mathematical literacy skills are still low. The purpose of this research was to determine whether the discovery learning model effect the students' ability in mathematical literacy skills. This research was conducted at UPTD SMP Negeri 1 Gunungsitoli Idanoi with the research object at 8th grade students in the 2022/2023 academic year, which is consist of 7 classes with a total of 208 students. The samples in this research were VIII-F class as the experimental class which was consist of 28 students and VIII-G class as the control class which was 27 students. This research is quantitative research using a quasi-experimental research method (quasi experiment design). The research instrument used was a mathematical literacy test of five items for the pre-test and five items for the pos-test. The results of the study obtained t-count = 1,915 and t-table = 1.674. Because t-count > t-table is 1,915 > 1.674, then reject Ho accept Ha which means "there is an effect of the discovery learning model on students' mathematical literacy skills

Co-Authors Agnes Rosdiana Telaumbanua Alfandy Gea Amin Otoni Harefa Angelia Linia Murni Waruwu Anna Fertika Zalukhu Buulolo, Marnus Dimaria Laia Enike Zebua Erlis Chrisanti Lase Eunike Zai Gulo, Devi Ratna Sari Gulo, Rahmat Juang Halawa, Polinus Harefa , Amin Otoni Harefa, Ahmad Din Hia, Oidika Mawarni Hulu, Krisnatal Hulu, Wikari Intan Wirna Waruwu Jeliswan Berkat Iman Jaya Gea Juni Yanto Zebua Lase, Jupi Yarman Lase, Rama'eli Lase, Trisna Wahyu Ningsi Meiman Harapan Zega Melinia Harefa Memori Putra Lawuna Mendrofa, Ratna Natalia Mendrofa, Sri Jernih Popy Yamin Monika Zebua Ndraha, Mei Tri Murni NETTI KARIANI MENDOFA Nobuala Telaumbanua Nofati Waruwu Novetrianus Tafonao Nur Ayu Zebua Parta Telaumbanua Polinus Halawa Rama’eli Lase Rintis Kharisna Putri Zega Sabarsudi Mendrofa Sadiana Lase Salima Zai SALOME WARUWU Telambanua, Yakin Niat Telaumbanua, Ovitarni Telaumbanua, Yakin Niat Waruwu, Defitriani Waruwu, Mitra Novitri Wining Helsavania Buulolo Winistina Giawa Wirdayanti Zebua Yudika Zebua Zebua, Diani Astuti Zebua, Ikke Afdolitha Zebua, Siska Yanti Zebua, Soniat Mekartini Zebua, Viktor Zega, Hakiki Necis Zega, Odismeri Zega, Silih Mentari Zendrato, Pniel Sozawato

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