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All Journal EKSAKTA : Jurnal Penelitian dan Pembelajaran MIPA JURNAL EDUCATION AND DEVELOPMENT JURNAL MathEdu (Mathematic Education Journal)
Siregar, Eva Yanti
Institut Pendidikan Tapanuli Selatan
Agriculture, Biological Sciences & Forestry Arts Humanities Computer Science & IT Education Languange, Linguistic, Communication & Media Mathematics

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Pengembangan instrumen penilaian untuk mengukur kemampuan penalaran matematis siswa kelas VIII SMP N 2 Padangsidimpuan Siregar, Eva Yanti; Elindra, Rahmatika; Sikumbang, Vivin Mei Sarah
JURNAL MathEdu (Mathematic Education Journal) Vol 8 No 2 (2025): JURNAL MathEdu (Mathematic Education Journal) Juli 2025
Publisher : Program Studi Pendidikan Matematika Institut Pendidikan Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37081/mathedu.v8i2.6206

Abstract

Penelitian ini bertujuan untuk menghasilkan Instrumen Penilaian untuk Mengukur kemampuan Penalaran Matematis Siswa kelas VIII--3 di SMP Negeri 2 Padangsidimpuan dan mengetahui kualitas Insstrumen Penilaian dilihat dari aspek kevalidan, kepraktisan dan keefektifannya. Penelitian ini merupakan penelitian Research and Development (R&D) dengan model pengembangan ADDIE (Define, Design, Develop, Disseminate). Subjek dalam penelitian ini adalah 30 siswa kelas VIII-3 SMP Negeri 2 Padangsidimpuan. Teknik Pengumpulan data dalam penelitian ini adalah angket, pengukuran, dan dokumentasi. Instrumen yang digunakan diantaranya 1)lembar angket berupa angket validasi oleh ahli untuk melihat kevalidan produk yang dikembangkan, dan 2) angket respon siswa untuk mengetahui kepraktisan produk yang dikembangkan. Validasi dilakukukan oleh 3 ahli yaitu ahli materi, dan ahli bahasa dan kemudian diujicoobakan berdasarkan kemampuan penalaran matematis siswa. Berdasarkan hasil penelitian yang dilakukan didapatkan hasil kevalidan produk dengan rata-rata persentase 83% dalam kategori “Sangat Valid”, kepraktisan produk dengan rata-rata 84% dalam kategori 1“Sangat Praktis” dan keefektifan dengan rata-rata 83 % dalam kategori “Sangat Efektif”.
Pengembanngan Bahan Ajar Sistem Persamaan Linear Dua Variabel Dengan Pendekatan Scientific Berbasis Website Untuk Membelajarkan Kemampuan Pemecahan Masakah Matematika Siswa Ahmad, Marzuki; Siregar, Eva Yanti; Ndraha, Bagus Hasudungan
JURNAL MathEdu (Mathematic Education Journal) Vol 8 No 2 (2025): JURNAL MathEdu (Mathematic Education Journal) Juli 2025
Publisher : Program Studi Pendidikan Matematika Institut Pendidikan Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37081/mathedu.v8i2.6347

Abstract

This development research aims to 1) Knowing the validity of developing website-based twovariable linear equation system teaching materials, 2) Knowing the practicality of using web-based twovariable linear equation system development teaching materials in learning activities, and 3) Knowing the effectiveness of developing linear equation system teaching materials two website-based variables to teach students' mathematical problem solving skills. This research is a Research and Development (R&D) research with the ADDIE development model, where this research consists of 5 stages, namely, 1) Analysis Phase, 2) Design Phase, 3) Development Phase, 4) Implementation Phase and 5) Evaluation Phase. The instruments used include 1) a questionnaire sheet in the form of a validation questionnaire by an expert to see the validity of the product and student response questionnaires to see the practicality of the product, as well as 2) a test sheet to test the effectiveness of the developed product being tested on 24 students in class X MIA 1 SMA N 1 Angkola East. Based on the results of this study, the product validity was obtained with an average percentage of 89% in the " Valid" category, product practicality with an average percentage of 85% in the "Practical" category, and product effectiveness with an average percentage of 79,74% with the category "Effective".It can be concluded that the development of website-based two-variable linear equation system teaching materials to teach students' mathematical problem solving skills is valid, practical and effective.
PENGEMBANGAN E-MODUL MATEMATIKA BERBASIS ETNOMATEMATIKA UNTUK MENINGKATKAN KEMAMPUAN LITERASI MATEMATIS SISWA KELAS VIII SMP NEGERI 1 PADANG BOLAK Simamora, Josua; Harahap, Muhammad Syahril; Siregar, Eva Yanti
JURNAL MathEdu (Mathematic Education Journal) Vol 8 No 3: JURNAL MathEdu (Mathematic Education Journal) November 2025
Publisher : Program Studi Pendidikan Matematika Institut Pendidikan Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37081/mathedu.v8i3.7285

Abstract

This study aims to create and test the quality of a math e-module that incorporates ethnomathematics to improve students' mathematical literacy. This is a development study that follows the ADDIE development model, which includes five stages: analyze, design, development, implementation, and evaluation. The research involved 25 students. The findings showed that the experts rated the e-module at an average score of 80.2%, which is considered valid. The e-module was also found to be very practical based on the student questionnaire score of 89.72%. Its effectiveness was proven with 100% of students achieving over 85% in the mathematical literacy test. Based on these results, it can be concluded that the developed ethnomathematics-based math e-module for the topic of systems of linear equations in two variables is suitable to be used as a learning material.
Co-Authors Abdul Rahm Habayahan Adelina Nasution Ahmad Marzuki ARDIANA, NUNIK Dandi Daniel Dostika Ashari Simatupang Eka Rita Simatupang Elindra, Rahmatika Ernawati Mendrofa Handayani, Zulia Hanifah Nur Nasution Harahap, Nuriah Sri Rohma Harahap, Sinar Depi Lismawati Sitorus Lubis, Roslian Marzuki Ahmad Marzuki Ahmad Masdewani Lubis Maswaras Hari Hutagalung Maya Sari Siregar Mhd. Nau Ritonga Muhammad Syahril Harahap Nasution, Abdul Latif Nasution, Dwi Putria Nasution, Putri Amalia Hidayani Ndraha, Bagus Hasudungan Nurhalima Tambunan Nurjannah Harahap Popy Vera Yanti Rahmad Fauzi Rahmadani Nasution Rahmat Hidayat Rahmatika Elindra Ramli Simatupang Rapita Tanjung Ratiah Tri Mei Harahap Riko Saputra Tambunan Roslian Lubis Rudi Faizal Gultom Sahara, Elvi Sikumbang, Vivin Mei Sarah Simamora, Josua Simanjuntak, Supenro Sorta Dameria Harianja Sri Wahyuni Naibaho Suhetni Asmarita Situmorang Supenro Simanjuntak Tambunan, Lela Septiana Tamin Ritonga Ummawiyah Hasibuan Uswatun Hasanah Hasibuan Vinni Alvenita Tarihoran Wiwin Manalu Zulfadli Nasution