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Anetha L.F. Tilaar

Jurusan Matematika FMIPA Universitas Negeri Manado

Author-ID : 4031808

Agriculture, Biological Sciences & Forestry Humanities Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Environmental Science Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mathematics Physics Public Health Social Sciences Other

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Development of Student Worksheets in Mathematics Learning of Grade XII Statistics Materials with Project Based Learning Model Meisy Wijayanti Mokoagow; Anetha L. F. Tilaar; Ontang Manurung
Edu Cendikia: Jurnal Ilmiah Kependidikan Vol. 5 No. 01 (2025): Research Articles, April 2025
Publisher : ITScience (Information Technology and Science)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/educendikia.v5i01.5699

Mathematics education in Indonesia, particularly in high schools, faces significant challenges in improving students' understanding of abstract concepts, especially in statistics. The lack of practical application and the focus on memorization of formulas hinder students' ability to relate mathematical concepts to real-life situations. To address these challenges, Project-Based Learning (PjBL) is proposed as an effective approach that engages students in real-world projects, encouraging active participation, critical thinking, and the application of mathematical concepts. This study employs the Research and Development (R&D) method with the ADDIE model (Analysis, Design, Development, Implementation, Evaluation) to develop a Student Worksheet (LKPD) based on PjBL for teaching statistics in class XII at SMK Kesehatan Bulawan. The development process includes analyzing the curriculum, student characteristics, and learning goals, followed by designing, validating, and revising the LKPD. The product is then implemented in a small group trial and evaluated for its validity, practicality, and effectiveness through expert validation, practical questionnaires, and student learning tests. The LKPD received very high validity, with expert validation scores of 95% for content and 90% for design, resulting in an average score of 92.5%. Practicality assessments showed a 91.5% average, indicating the LKPD was easy to use by both teachers and students. The effectiveness of the LKPD was confirmed by an 80% average student achievement rate, with 80% of students meeting the KKM (Minimum Completeness Criteria). The developed LKPD based on PjBL is highly valid, practical, and effective for improving students' understanding of statistics, making it a suitable tool for enhancing mathematics education in SMK.

IMPLEMENTATION OF THE COLLABORATIVE PROBLEM SOLVING (CPS) LEARNING MODEL IN MATHEMATICS INSTRUCTION ON THE TOPIC OF SYSTEMS OF TWO-VARIABLE LINEAR EQUATIONS (SPLDV) Dosniroha, Devitha; Sulistyaningsih, Murni; Tilaar, Anetha L.F.
Jurnal Pendidikan Matematika dan IPA Vol. 17 No. 1 (2026): January 2026
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jpmipa.v17i1.104388

This study aims to identify whether the average learning outcomes of students who learn using the Collaborative Problem-Solving learning model are higher than the average learning outcomes of students who learn using the Direct learning model (lecture method) on the Two-Variable Linear Equation System material. This study uses a posttest-only control group design. The population of this study was all eighth-grade students and the sample in this study was class VIII-A as an experimental class consisting of 20 students and class VIII-B as a control class consisting of 10 students at SMP Negeri 3 Tondano in the even semester of the 2024/2025 academic year. The results revealed that there was a difference in the average learning outcomes of students taught using the Collaborative Problem-Solving learning model with students taught using the Direct learning model. Based on the above results, it can be concluded that using the Problem-Based Learning model can improve students' mathematics learning outcomes in the topic of Two-Variable Linear Equation Systems.

PEMAHAMAN KONSEP SISWA BERDASARKAN TAHAPAN APOS PADA MATERI SISTEM PERSAMAAN LINIER DUA VARIABEL DI SMP NEGERI 2 KALAWAT Denis Joshua Tamba; Anetha L. F. Tilaar; Vivian E. Regar
EDU-MAT: Jurnal Pendidikan Matematika Vol 13, No 2 (2025)
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/edumat.v13i2.22049

Pemahaman konsep matematika merupakan komponen penting dalam pembelajaran Sistem Persamaan Linear Dua Variabel (SPLDV) karena berperan dalam kemampuan siswa memecahkan masalah kontekstual. Penelitian ini bertujuan untuk menganalisis pemahaman konsep siswa berdasarkan teori APOS (Action, Process, Object, Schema) yang menguraikan tahapan berpikir matematis siswa. Studi ini menggunakan pendekatan kualitatif dengan teknik pengumpulan data melalui tes diagnostik dan wawancara mendalam terhadap tiga siswa yang mewakili kategori kemampuan tinggi, sedang, dan rendah dari total 28 siswa yang mengikuti tes. Hasil menunjukkan bahwa siswa berkemampuan tinggi mampu menyelesaikan soal SPLDV secara hampir menyeluruh berdasarkan tahapan APOS, meskipun terdapat kekurangan dalam representasi tertulis. Siswa berkemampuan sedang menunjukkan pemahaman terbatas, khususnya dalam menentukan metode penyelesaian dan menarik kesimpulan. Sementara itu, siswa berkemampuan rendah hanya menunjukkan pemahaman semu, karena jawaban diperoleh dari sumber eksternal tanpa melalui proses konstruksi pengetahuan. Temuan ini menegaskan efektivitas teori APOS sebagai kerangka analisis untuk mengidentifikasi kesulitan belajar matematika secara komprehensif. Penelitian ini memberikan kontribusi pada pengembangan strategi pembelajaran berbasis tahapan kognitif siswa dan menyarankan eksplorasi lanjutan dengan integrasi pendekatan teknologi. Kata kunci: pemahaman konsep matematika; teori APOS; SPLDV; pembelajaran kontekstual; kemampuan berpikir matematis Abstract: Conceptual understanding in mathematics is a critical component in learning Systems of Linear Equations in Two Variables (SPLDV), as it plays a significant role in students’ ability to solve contextual problems. This study aims to analyze students' conceptual understanding based on the APOS theory (Action, Process, Object, Schema), which outlines the stages of mathematical thinking. A qualitative approach was employed, involving diagnostic tests and in-depth interviews with three students representing high, moderate, and low ability levels, selectsed from a total of 28 students who participated in the test. The results revealed that the high-ability student was able to complete the SPLDV problems across nearly all APOS stages, although with some limitations in written representation. The moderate-ability student demonstrated partial understanding, especially in selecting problem-solving methods and drawing conclusions. Meanwhile, the low-ability student showed only surface-level understanding, as responses were obtained from external sources without internal knowledge construction. These findings affirm the effectiveness of the APOS theory as an analytical framework to identify learning difficulties in mathematics comprehensively. This research contributes to the development of instructional strategies based on students’ cognitive stages and suggests further exploration of the integration of technological approaches. Keywords: mathematics conceptual understanding; APOS theory; systems of linear equations; contextual learning; mathematical thinking skills

PENGEMBANGAN BAHAN AJAR MENGGUNAKAN FLIP PDFPROFESSIONAL PADA MATERI MATRIKS Nona Frike Manumpil; Jhon R. Wenas; Anetha L.F. Tilaar
JURNAL PENDIDIKAN DAN KEGURUAN Vol. 1 No. 2 (2023): Jurnal Pendidikan dan Keguruan
Publisher : CV. ADIBA AISHA AMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar

The lack of use of technology makes learning monotonous as well as the packaging of teaching materials that are less attractive makes students bored to learn mathematics so that solutions are needed to create or develop teaching materials in which the teaching materials are packaged attractively and help mathematics learning activities. The purpose of this research is to develop matrix teaching materials by utilizing or using professional flip pdfs and to determine the quality of teaching materials from the aspects of validity, practicality, and effectiveness of the developed teaching materials. Research and Development (R&D) with the ADDIE development model used in this study. The percentage of validity of the assessment by expert I 83%, expert II 95%, expert III 92% where the results are in the valid and very valid criteria. The practicality of the matrix teaching materials based on the average student response is 89% with very practical criteria, while the teacher's response on the presentation results is 92% with very practical criteria. The effectiveness of matrix teaching materials based on student learning outcomes tests with a mastery percentage of 82.85% is in the very effective criteria. So, the conclusion is that the matrix material teaching materials developed are valid, practical and effective for use in the learning process.

PENERAPAN MODEL PEMBELAJARAN KOOPERATIF TIPE STUDENT TEAMS ACHIEVEMENT DIVISIONPADA MATERI LINGKARAN(Eksperimentasi Pada Siswa Kelas VIII SMP Negeri 1 Tondano) Millenika Putri Purba; Anetha L.F Tilaar; Marvel G. Maukar
JURNAL PENDIDIKAN DAN KEGURUAN Vol. 1 No. 2 (2023): Jurnal Pendidikan dan Keguruan
Publisher : CV. ADIBA AISHA AMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar

Based on the results of observations and interviews that have been conducted at SMP Negeri 1 Tondano, information was obtained that the learning process is still using the direct learning model. Where learning is only centered on the teacher, so students are less active in learning mathematics.This causes students to have grades that are standard or below average. This cen be seen from the average score of students, which is 67.5, while the Minimum Completeness Criteria (KKM) set in schools is 75. The purpose of this study is to determine whether the learning outcomes of students who use the cooperative learning model of the student teams achievement division type are higher from student learning outcomes using direct learning models on circle material. The experimental design used in this study was a posstest control group design. the sample of this study was class VIIIC as the experimental class with 28 students and class VIIIB as the control class with 29 students at SMP Negeri 1 Tondano. Data obtained from student learning outcomes tests. With the average student learning outcomes in the experimental class was 81.64 and the average student learning outcomes in the control class was 72.85. analysis of the data using the t-test with a value of ???????????????????????? = 1.902 > ???????????????????????? = 1,67 then reject ????0 and accept ????1. The results of the study concluded that student learning outcomes taught by cooperative learning model type student teams achievement division were higher than student learning outcomes taught using direct learning models, so that they were well applied to the process of learning activities.

Implementasi Etnomatematika Pada Pembelajaran Matematika Di SMP Negeri 7 Kotamobagu Nurul Halima Dwi Putri; Anetha L. F. Tilaar; Santje M. Salajang
Jurnal Pendidikan, Bahasa dan Budaya Vol. 1 No. 4 (2022): Desember: Jurnal Pendidikan, Bahasa dan Budaya
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jpbb.v1i1.804

Mathematics is often seen as a deductive science and is not related to social aspects. Even though mathematics grows and develops from socio-cultural practices that occur in society. This is the basis for the development of ethnomathematics concepts. The ethnomathematics concepts in the Bolaang Mongondow community are very diverse. This study aims to describe the implementation of ethnomathematics in learning mathematics at SMP Negeri 7 Kotamobagu, especially in the use of regional languages and symbols of the Bolaang Mongondow Kabela Box Craft. The data obtained is in the form of qualitative data while the sources are obtained from interviews, observation, and documentation from informants (teachers, students and craftsmen). The main instrument is the researcher, while the supporting instruments used are interview guides and documentation. The results showed that the regional language and the symbols of the Bolaang Mongondow Kabela Box craft really helped teachers and students in the process of learning mathematics at SMP Negeri 7 Kotamobagu.

Model Pembelajaran Make A Match Pada Materi Sistem Persamaan Linear Dua Variabel Di SMP Negeri 2 Tatoareng Oktavia Adela Lumandung; Jhon R. Wenas; Anetha L. F. Tilaar
Jurnal Pendidikan, Bahasa dan Budaya Vol. 1 No. 4 (2022): Desember: Jurnal Pendidikan, Bahasa dan Budaya
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jpbb.v1i1.855

Penerapan model pembelajaran yang tepat pada pembelajaran sangatlah berpengaruh dalam meningkatkan kualitas pembelajaran. Pada penelitian ini difokuskan pada peningkatan hasil belajar siswa dengan menerapkan model pembelajaran kooperatif tipe make a match pada materi SPLDV. Penelitian ini mengambil subjek kelas VIII SMP Negeri 2 Tatoareng yang terdiri dari 15 siswa sebagai kelas eksperimen. Kemudian data dikumpul berdasarkan hasil tes akhir setelah perlakuan diberikan pada subjek penelitian. Penelitian ini juga melakukan uji prasyarat yaitu uji normalitas dan homogenitas dimana didapatkan hasil yang data yang normal dan homogen, serta dilanjutkan dengan pengujian hipotesis menggunakan uji-t. Hasil diperoleh bahwa t-hitung = 1,941 dan t-tabel = 1,710 dengan taraf nyata yang digunakan adalah 0,05. Kesimpulan yang diperoleh adalah hasil belajar siswa yang menggunakan model kooperatif tipe make a match lebih tinggi dibandingkan dengan hasil belajar yang menggunakan model konvensional, sehingga model make a match cocok untuk digunakan dalam pembelajaran SPLDV

Co-Authors A. Pesik Adiputra Gideon Mukkun Alfina Dwi Puspita Alfirawati Lumahu Anekke Pesik Ansuryani Umar Cosmas Poluakan Damopolii, Inayah Putri Deeng, Vernel Denis Joshua Tamba Derel Filandy Kaunang Dosniroha, Devitha Ermita Ermita Fabian Y. Paisa Febriyani R.D. Putri Gea, Sinoria Grachiella Aurelia Baweleng Gunawan, Shintia D. Hariyati Pantow Harun, Sindi Claudia Hasriyanti Hasriyanti Hengkeng, Melisa Ichdar Domu Inkiriwang, Ellen Merry James U.L. Mangobi Jhon R Wenas John R. Wenas Junaedy, Reiner Aditia Christian Kaunang, Derel F Krista Monika Ransun Kristin Arbis L. G. Simamora Lempas, Zefanya Livinia Tendean Madalise, Adrianus Magenda, Trivona Mamatu, Jeliyanti Mandey, Angela Fern Mangamis, Freiti Marvel G. Maukar Masloman, Amalya Arcely Dian Meisy Wijayanti Mokoagow Millenika Putri Purba Muhammad S. Makalalg Nedelan, Selviani S. D. Ngantung, Meisy Mariani Nicky Kurnia Tumalun Nona Frike Manumpil Novi S. Triyanti Nurul Halima Dwi Putri Oktavia Adela Lumandung Patricia V. J. Runtu Pelealu, Eyrene Philotheus E. A. Tuerah Pitoy, Cori Polly, Lady Amanda Poluakan, Meylan Jashinta Priska M. Humapi Putri, Febriyani R.D. Rawis, Rivaldo Markus Reski Awalia Ramadani Roldy, Charly Fanly Rondonuwu, Nadiya Yesikha Rosiah J. Pulukadang Samuel Wuisan Sandy Salomo Saruan Santje M. Salajang Selfie L. Kumesan Sylvia Jane Annatje Sumarauw Tadjamawo, Jesika Florensia Tendean, Livinia Tengker, Melita Thytania Walangare Timbongol, Alessandro M. Trezita A. S. Onibala victor Sulangi Vivian E. Regar Wenas, John Robby Wuisan, Samuel

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