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All Journal AL ISHLAH Jurnal Pendidikan Malikussaleh Journal of Mathematics Learning (MJML) MES: Journal of Mathematics Education and Science Budapest International Research and Critics in Linguistics and Education Journal (Birle Journal) Jurnal Pengabdian Masyarakat Bidang Sains dan Teknologi Jurnal Pendidikan dan Pengabdian Masyarakat International Journal of Trends in Mathematics Education Research (IJTMER) Jurnal Sains Student Research

Imelda Imelda

Department Of Mathematics Education, Universitas Katolik Santo Thomas SU, Medan,20132

Author-ID : 3489163

Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Education Electrical & Electronics Engineering Engineering Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Public Health Social Sciences Transportation Veterinary Other

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PENERAPAN METODE PROBLEM SOLVING DALAM MENINGKATKAN KEMAMPUAN PEMECAHAN MASALAH PADA MATA KULIAH ALJABAR DAN TRIGONOMETRI Imelda Imelda
MES: Journal of Mathematics Education and Science Vol 3, No 2 (2018)
Publisher : Universitas Islam Sumatera Utara

Abstract. This study is a classroom action research. The purpose of this research is (1) to describe the application of problem solving method in improving mathematics problem solving students of mathematics education program of Catholic University of Santo Thomas North Sumatera and (2) to describe the improvement of mathematics problem solving ability of mathematics education student in Algebra and Trigonometry. The result of this research shows that the result of problem solving test of mathematics cycle I is students who do not have problem solving ability as much as 3 people (30%), while students have math problem solving ability as much as 7 people (70%) and percentage of observation sheet lecturer activity amounted to 70.90%. Based on the result of math problem solving test in cycle 2, there were 1 (10%) students who did not have the ability to solve mathematics problem, while the students who have problem solving ability 9 students (90%) and lecturer activity percentage of 85.50% experienced an increase from cycle I of 6.5%. Based on the results of this acquisition then the group (classical) can be said that students have the ability to solve problems in Algebra and Trigonometry courses and increase problem-solving abilities by 20%. Keywords: problem solving method and problem solving ability.

PENINGKATAN AKTIVITAS BELAJAR MAHASISWA PADA MATA KULIAH EVALUASI HASIL BELAJAR MATEMATIKA MELALUI PENERAPAN MODEL PEMBELAJARAN BERBASIS PROYEK Imelda Imelda
MES: Journal of Mathematics Education and Science Vol 3, No 1 (2017)
Publisher : Universitas Islam Sumatera Utara

This research is a classroom action research. The objectives of this research are: (1) to describe student's learning activity in project-based learning; (2) to describe the improvement of student learning activity of mathematics education program of St. Thomas University through the application of project-based learning model; (3) to analyze student project tasks in project-based learning. The results of this study indicate that student learning activity in cycle 1 is 41.66% active students in visual activities, 25% active students in oral activities, 47.22% active students in writing activities, 13.89% active students in mental activities. Students activity in cycle 2 is 75% active students in visual activities, 63.89% active students in oral activities, 75% active students in writing activities, 52.78% active students in mental activities. The test validity test consisted of 18 tests tested in 18 schools with a total of 90 questions in which each test consisted of 4 questions, 5 questions and 6 questions. Validity results obtained 69 problems (76.67%) valid and as many as 21 problems (23.33%) is invalid. The results of the test reliability obtained 12 reliable tests with high reliability category as many as 5 tests (27.78%) and medium relative category as many as 7 tests (38.89%) and there are 6 tests (33.33%) that are not reliable. The result of analysis of different test variables obtained 39 problem (43,33%) with bad category, 29 problem (32,22%) enough category, and 16 problem (17,78%) good category. The results of the analysis of the difficulty level of the test obtained that from 90 tested questions there are 42 easy questions, 45 problems medium and 3 difficult questions.

An Analysis of Students Motivation in Off-Network-Based Creative Mathematics Learning Imelda Imelda; Tetty Natalia Sipayung; Tatag Yuli Eko Siswono; Masriyah Masriyah
Budapest International Research and Critics in Linguistics and Education (BirLE) Journal Vol 4, No 4 (2021): Budapest International Research and Critics in Linguistics and Education, Novemb
Publisher : BIRCU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birle.v4i4.2949

Mathematics learning during the COVID-19 pandemic was initially carried out online or based on a network (online). However, as time goes by where the spread of COVID-19 is getting smaller, mathematics learning is carried out face-to-face directly by paying attention to health protocols called offline or off-network-based learning. Therefore, teachers need to know the current student's learning motivation which is taught off-network-based learning. Therefore, an analysis of student motivation in off-network-based creative mathematics learning was carried out by giving a questionnaire to the seventh-grade students of SMP Dharma Wanita Medan, amounting to 27 people as research subjects. This research was conducted in the odd semester of the 2021/2022 Academic Year. While the object of this research is student learning motivation with six indicators, namely responsibility, trying to excel, liking challenges, independence, fortitude, and tenacity. This research is a qualitative-research with descriptive method. The results of this study stated that students' motivation in off-network-based creative mathematics learning was good.

The significant relationship between independent and student’s motivation on online-based mathematics learning Tetty Natalia Sipayung; Imelda Imelda; Tatag Yuli Eko Siswono; Masriyah Masriyah
Malikussaleh Journal of Mathematics Learning (MJML) Vol 4, No 2 (2021): October
Publisher : Universitas Malikussaleh, Aceh Utara, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/mjml.v4i2.5608

The purpose of this quantitative research with correlational design is to determine whether there is independent learning with learning motivation in online-based mathematics learning. So, it can support the success of learning process. This study was conducted in the odd semester of the 2021/2022 Academic Year. All seventh-grade students of SMP Santo Yoseph Medan were used as the research population. While the samples of this study were all students of class VII-A who collected 30 people and all students of class VII-B who collected 31 people. In mathematics learning, all students are taught online through the Zoom cloud meeting platform, WhatsApp, and Google Classroom. Sampling was done by purposive sampling technique. The study instruments is a learning independence questionnaire and student learning motivation questionnaire. The results of the questionnaire were analyzed based on product moment correlation data. Data analysis of the research results showed sig. (2-tailed) < 0.05 so that there is a significant relationship between learning independence and students' learning motivation in online-based mathematics learning with a value of 0.433 including the category of moderate correlation.

Improving Students’ Creative Problem-Solving Skills in Online-Onsite Based Mathematics Learning Tetty Natalia Sipayung; Imelda Imelda; Tatag Yuli Eko Siswono; Masriyah Masriyah
AL-ISHLAH: Jurnal Pendidikan Vol 14, No 2 (2022): AL-ISHLAH: Jurnal Pendidikan
Publisher : STAI Hubbulwathan Duri

Learning during the COVID-19 period is a concern in the world of education. This is because the learning system has changed from the previous one and it has not been used by both students and teachers. In response to this, it is necessary to conduct action research using the Kemmis and McTaggart models on online-onsite mathematics learning, namely boldly through online platforms and the request of students. The subjects of this study were seventh-grade junior high school students who found 27 people. In contrast, the object of this research is to increase students’ creative problem-solving skills and increase teacher activity and student behaviour. Through the instruments used in online-onsite based learning, the results show that there is an increase in the percentage of classical learning completeness in creative problem-solving abilities of students who pass the minimum KKM in the 1st cycle from the percentage of initial ability results but have not shown achievement. While the results of observations of student behaviour and teacher activities meet the criteria achieved. Therefore, it is continued to cycle II by correcting the weakness in cycle I. The implementation of cycle II shows that all performance indicators have been achieved. Through these results, of course, it is a consideration that in improving problem-solving skills, it is recommended to do online-onsite based learning, especially in mathematics.

PENGABDIAN MASYARAKAT MELALUI KEGIATAN PEMBELAJARAN MATEMATIKA BERBASIS KONSTRUKTIVISME DI SMP NEGERI 4 BINJAI Imelda Imelda
Jurnal Pendidikan dan Pengabdian Masyarakat Vol. 4 No. 3 (2021): Agustus
Publisher : FKIP Universitas Mataram

Pengabdian kepada masyarakat ini bertujuan untuk memberikan pembelajaran Matematika berbasis konstruktivisme di SMP Negeri 4 Binjai. Hal ini didasarkan bahwa masih banyak guru yang belum menggunakan variasi model/metodo pembelajaran di kelas terutama pembelajaran Matematika sehingga siswa merasa bosan karena model/metode pembelajaran yang monoton setiap harinya. Metode pengabdian meliputi tahapan persiapan, tahapan pelaksanaan dan tahap evaluasi. Pada tahap persiapan bertujuan mempersiapkan RPP, LAS, angket, dan tes. Tahap pelaksanaan yaitu melaksanakan pembelajaran Matematika berbasis konstruktivsme. Pembelajaran Berbasis kontruktivisme yang dimaksud adalah pembelajaran Berbasis masalah (Problem Based Learning) dan Metode Penemuan Terbimbing. Tahap evaluasi dilakukan dengan memberikan angket dan tes. Hasil kegiatan pengabdian ini diperoleh bahwa siswa senang terhadap materi pelajaran, senang menggunakan LAS, senang dengan cara belajar, senang dengan cara guru mengajar dan senang terhadap masalah/soal yang diberikan. Siswa mampu mengikuti pelaksanaan kegiatan pembelajaran berbasis konstruktivisme dengan baik.

Student’s Difficulty Analysis Through Realistic Mathematics Education Using Batak Toba Cultures Sinta Dameria Simanjuntak; Imelda Imelda
International Journal of Trends in Mathematics Education Research Vol 1, No 3 (2018)
Publisher : SAINTIS Publishing

This study aims to describe students' difficulties in solving numerical patterns in the context of the Toba Batak ethnic culture after the implementation of the Realistics Mathematic Education Approach in the context of the Toba Batak Tribe Culture. Subjects in this study were students of class VIII Junior High School (SMP) totaling 32 people. The data collection tool used in this study is a test that totals ten questions in the form of a description. This type of research is a qualitative descriptive study. Data collection techniques are carried out by tests, observation, interviews, and documentation. Data analysis techniques were carried out by data reduction, data presentation, and concluding. The results showed that students had difficulty determining the sequence of numbers, determining the configuration of a sequence of numbers, determining the arithmetic series, determining the number of n first arithmetic series terms, determining the first term n row geometry, and determine the number of n first terms of the geometry series. The causal factor is that students are not able to distinguish the general formula concept of a sequence and the concept of configuration patterns from a sequence of numbers, operating error calculations and not understanding integer ranks.

Klinik Pelatihan Peningkatan Kemampuan Literasi Numerasi Siswa Berbasis Teknologi dan Permainan di SD Swasta Luis Betlehem Kecamatan STM Hilir Melika Silalahi; Rina Pasaribu; Jose Andre; Imelda Imelda
ABDIKAN: Jurnal Pengabdian Masyarakat Bidang Sains dan Teknologi Vol. 2 No. 2 (2023): Mei 2023
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/abdikan.v2i2.1739

Literacy ability can be understood as the ability to analyze information in the form of text, while numeracy ability is understood as the ability to analyze information in the form of numbers. Both of these abilities help improve one's ability to draw conclusions from the information read. The current rapid development of science and technology really helps students to increase literacy-numeracy more quickly if it can be utilized and developed in learning at school. Some of the things that cause low literacy-numeration skills include low interest in reading, reading is only for learning but not to understand the reading, writing is read only without understanding the reading. Therefore, this training clinic provides fun learning in an effort to improve technology- and game-based literacy. Activities carried out: 1) Explanation of numeracy literacy material which aims to provide information and introduction to students what is meant by numeracy literacy. 2) Discussions discuss and solve numeracy literacy questions, 3) play indoors, this activity is a game using numbers or mathematical calculations but while playing, 4) Outdoor play activities are also learning while playing to improve students' numeracy literacy by hone students' mathematical abilities but still while playing, 5) Using technology by giving quizzes through the quiziz application even though students still have to be guided in using cellphones to complete the quizzes given. Based on these activities, student responses were obtained, including 59% of students' interest in reading increased and 58% of students' interest in learning mathematics experienced an increase after participating in clinical activities to improve numeracy literacy skills based on technology and games.

Implementasi Model Pembelajaran Kooperatif Tipe Numbered Head Together Untuk Meningkatkan Kemampuan Kolaborasi Matematis Siswa Kelas VII SMP Santa Lusia Sei Rotan Elpita Cyndi Claudia Simarmata; Ribka Kariani Sembiring; Imelda
JOURNAL SAINS STUDENT RESEARCH Vol. 1 No. 1 (2023): Oktober: Jurnal Sains Student Research
Publisher : CV. KAMPUS AKADEMIK PUBLISING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61722/jssr.v1i1.195

This research aims to find out whether the implementation of the Numbered Head Together type cooperative learning model can improve students' mathematical collaboration abilities in class VII of Santa Lusia Sei Rotan Middle School. This research method uses Classroom Action Research (PTK). The research procedure is cyclical. Each cycle consists of 4 stages, namely: planning, implementing actions, observing and reflecting. Data collection techniques through observation and tests. This data collection uses several instruments in the form of teacher observation sheets and student observation sheets. Meanwhile, to determine students' mathematical collaboration abilities, tests are used. The results of the research show that the use of the Numbered Head Together type cooperative learning model can improve students' mathematical collaboration abilities in mathematics lessons on algebra material. From the average value of the prerequisite abilities, namely 46, the average value of the mathematical collaboration ability of students in cycle I is 71 and the average value of the mathematical collaboration ability of students in cycle II is 76 and the teacher and student activity scores in cycle I are 64% and 59%. , and cycle II, namely 83% and 84%.

Co-Authors Elpita Cyndi Claudia Simarmata Jose Andre Masriyah Masriyah Masriyah Masriyah Masriyah Masriyah Melika Silalahi Ribka Kariani Br Sembiring Rina Pasaribu Simanjuntak, Sinta Dameria Tatag Yuli Eko Siswono

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