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Sehatta Saragih

Dosen Pendidikan Matematika FKIP Universitas Riau

Author-ID : 3304716

Religion Agriculture, Biological Sciences & Forestry Arts Humanities Chemistry Computer Science & IT Economics, Econometrics & Finance Education Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Mechanical Engineering Physics Public Health Social Sciences Other

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PENERAPAN PROBLEM BASED LEARNING UNTUK MENINGKATKAN PEMAHAMAN MATEMATIS PESERTA DIDIK SMP PADA MATERI SPLDV Resti Oktazatika; Sakur Sakur; Sehatta Saragih; Nelli Susanti
SIGMA: JURNAL PENDIDIKAN MATEMATIKA Vol. 17 No. 2: Desember 2025
Publisher : Universitas Muhammadiyah Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26618/xz9vky23

Kemampuan pemahaman matematis merupakan kompetensi penting yang menjadi dasar penguasaan matematika. Namun, hasil tes awal di kelas VIIIE SMP Negeri 23 Pekanbaru menunjukkan kemampuan ini masih rendah, terutama pada aspek penggunaan prosedur dan aplikasi konsep. Tujuan penelitian ini adalah untuk meningkatkan pemahaman matematis peserta didik tentang SPLDV dengan menggunakan Problem Based Learning (PBL). Sebanyak 36 peserta didik berpartisipasi dalam dua siklus pendekatan PTK. Analisis deskriptif kuantitatif dan kualitatif dilakukan terhadap data yang dikumpulkan melalui tes, observasi, dan dokumentasi. Hasil penelitian menunjukkan adanya peningkatan nilai rata-rata dari 36,11 (tes awal) menjadi 70,37 (siklus II), dengan perbaikan signifikan pada indikator menyatakan ulang konsep, klasifikasi objek, dan penerapan algoritma. Kontribusi penelitian ini adalah menegaskan bahwa PBL efektif bukan hanya meningkatkan hasil tes, tetapi juga membangun keterlibatan peserta didik, memperkuat keterampilan kolaboratif, serta memfasilitasi pemahaman konseptual SPLDV secara lebih bermakna. Oleh karena itu, PBL direkomendasikan sebagai strategi alternatif dalam pembelajaran matematika yang menuntut pemahaman mendalam.

Teachers' readiness and challenges in implementing differentiated instruction in mathematics education Fitri Novriyeni; Yenita Roza; Sehatta Saragih
AXIOM : Jurnal Pendidikan dan Matematika Vol 14, No 2 (2025)
Publisher : State Islamic University of North Sumatra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/axiom.v14i2.20027

Differentiated instruction, a key component of the contemporary learning paradigm, aims to tailor teaching strategies to students' varied needs. Despite its pedagogical relevance, this approach has yet to become a central focus among classroom practices. This study examines the readiness of junior high school mathematics teachers in Pekanbaru City to implement differentiated instruction. Employing a descriptive quantitative design, data were collected from 30 participants via an online questionnaire. The instrument included closed-ended items measured on a Likert scale across four dimensions: (1) conceptual understanding of differentiated instruction, (2) readiness in instructional planning, (3) readiness in classroom implementation, and (4) readiness in assessment practices. Open-ended items were also included to explore implementation challenges. The results reveal a low overall level of understanding and readiness, with an average score of 2.49 across all measured dimensions. Key barriers include limited access to information, insufficient time allocation, and unsupportive learning environments. This study provides empirical insights into instructional preparedness and practical constraints, offering a basis for future interventions aimed at strengthening the adoption of differentiated instruction in mathematics education.

WORKSHOP PENGEMBANGAN MEDIA PEMBELAJARAN BERBASIS ICT BERDESAIN LINGKUNGAN SISWA BAGI GURU SD Putri Yuanita; Elfis Suanto; Nahor Murani Hutapea; Rini Dian Anggraini; Susda Heleni; Suci Andriani; Sehatta Saragih
PAKEM: Jurnal Pengabdian Kepada Masyarakat Vol 6 No 2 (2026): Pakem : Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/pakem.6.2.102-112

Paying attention to the intellectual development of elementary school students in the lower classes and the demands of the implementation of deep learning, bringing the context of the student environment into learning is a must. One of the efforts that can be made is through the use of ICT-based learning media with student environmental design. However, the limited ability of teachers to develop the media is an obstacle, so mentoring activities are needed. This community service activity aims to improve teachers' ability to develop ICT-based learning media with student environmental design through workshops. The activity was carried out in collaboration with the Siak Regency Education Office with a target of 51 grade I teachers in Kandis District. The workshop was held for four sessions at SDN 09 Kandis using presentation, discussion, practice, and simulation methods. Indicators of the success of the activities are measured through the ability of participants to produce media products and responses to the implementation of the activities. The results of the activity showed that participants were able to produce ICT-based learning media designed by students with a good category. In addition, the participants' response to the activity was very positive, where all participants stated that the activity helped them in developing learning media. The enthusiasm of the participants and the basic ability to use ICT are the supporting factors for the success of the activity, while the main obstacle lies in the ability to compile the structure of the material as well as in browsing, downloading and cutting the media context. This workshop activity was declared effective in improving teachers' abilities and experience in developing ICT-based learning media that is contextual and in accordance with the characteristics of elementary school students.

Workshop Pengembangkan Perangkat Pembelajaran Deep Learning Bagi Guru SD Kecamatan Minas Kabupaten Siak: Pengabdian Sehatta Saragih; Maimunah Maimunah; Atma Murni; Sakur Sakur; Syarifah Nur Siregar; Elfis Suanto; Elmawati Elmawati; Wigbertus Ngabu; Susda Heleni; Yusa Putra
Jurnal Pengabdian Masyarakat dan Riset Pendidikan Vol. 4 No. 4 (2026): Jurnal Pengabdian Masyarakat dan Riset Pendidikan Volume 4 Nomor 4 April - Juni
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jerkin.v4i4.6178

Implementasi Deep Learning (DL) yang baru dicanangkan pada 2025 masih membutuhkan waktu karena kendala pemahaman prinsip serta ketidaksesuaian perangkat pembelajaran. Untuk mempercepat penerapannya, diperlukan pendampingan guru dalam penguatan pemahaman dan penyusunan perangkat. Di UPTD Dinas Pendidikan Kecamatan Minas, DL masih pada tahap sosialisasi dan belum optimal akibat keterbatasan kompetensi guru. Menanggapi hal tersebut, Tim PKM Program Studi Pendidikan Matematika bekerja sama dengan Dinas Pendidikan Kabupaten Siak menyelenggarakan workshop pengembangan perangkat pembelajaran bagi 26 guru dari 16 SD. Hasilnya menunjukkan kemampuan peserta berada pada kategori baik dan respon terhadap kegiatan sangat baik.

Peningkatan Kemampuan Berpikir Kritis Matematis dan Habits of Mind Siswa dengan Model Creative Problem Solving Nadia Nadia; Sehatta Saragih; Atma Murni; Adityawarman Hidayat; Sriyanti Mustafa; Yanti Yanti
Media Pendidikan Matematika Vol. 13 No. 2 (2025): J-MPM
Publisher : Program Studi Pendidikan Matematika, FSTT, Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/mpm.v13i2.18491

Based on PISA results, Indonesian students’ mathematical critical thinking skills and habits of mind are still at a very low level. The study aims to investigate the impact of the Creative Problem Solving (CPS) model on enhancing these two aspects both collectively and across varying levels of Initial Mathematical Ability (IMA) among eighth-grade students in the Senapelan District of Pekanbaru City. The population of this research consisted of all eighth-grade students in the Senapelan District, and the sample included 254 students. An experimental design employing a pretest–posttest control group framework was implemented, involving four experimental classes and four control classes. Data were obtained through a mathematical critical thinking skills test based on Higher Order Thinking Skills and a habits of mind questionnaire. The results of the statistical analysis demonstrated that the CPS model significantly improved students’ mathematical critical thinking skills and habits of mind. Moreover, an interaction effect was observed between the CPS model and students’ IMA on the development of mathematical critical thinking skills, whereas no such interaction emerged concerning habits of mind. These findings indicate that the CPS model is capable of promoting the development of mathematical critical thinking skills and positive learning dispositions among Phase D students.

Development of mathematics teaching materials based on the scientific approach to facilitate students' mathematical problem–solving ability in statistics learning Tasya Ananda; Sehatta Saragih; Elfis Suanto
Jurnal Absis: Jurnal Pendidikan Matematika dan Matematika Vol. 9 No. 1 (2026): Jurnal Absis
Publisher : Program Studi Pendidikan Matematika Universitas Pasir Pengaraian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30606/absis.v9i1.3483

This study was motivated by students’ low mathematical problem-solving ability, which was caused by inappropriate learning approaches and the lack of teaching materials that support the development of mathematical problem-solving ability. This study aims to produce mathematics teaching materials based on a scientific approach that are valid and practical to facilitate students’ mathematical problem-solving ability in statistics material, specifically measures of central tendency, for Grade VIII SMP/MTs students. This research is development research using the Tessmer model, which consists of preliminary and formative evaluation stages, including self-evaluation, expert review, one-to-one evaluation, and small group evaluation. The instruments used were validation sheets and student response questionnaires. The results of validation by three experts showed that the teaching materials had a very high level of validity, with an average score of 87.4%. Readability and attractiveness tests through one-to-one evaluation, as well as practicality tests through small group evaluation involving 11 students, resulted in an average response score of 89.25%, which was categorized as very practical. These findings show that the developed teaching materials are feasible to use and can support the development of students’ mathematical problem-solving ability. The contribution of this research lies in the explicit integration of the scientific approach into the structure of teaching materials to facilitate mathematical problem-solving ability. The implication of this research shows that developing teaching materials based on the scientific approach can be a strategic solution for improving the quality of mathematics learning at the junior high school level.

Co-Authors ', Armis ', Asmarita ', Sudarmono ', Suhermi ', Syofni ', Zuhri D Ade Suci Ramadhani Adityawarman Hidayat Afriyanti, Nadya Aini, Zahratul Ainul Hikmah Ainul Mardiah Alfajri, Hadiyanta Alfajri, Hadiyanta Ali, Elsiska Ningsi Ali, Rini Hardiyanti Andri Saputra Angraini, Rini Dian Arisman Adnan Armis Armis Armis Armis Armis Arus Ginanjar Arus Ginanjar Atma Murni Atma Murni Chintya, Cici Ayu Cici Ayu Chintya Desi Kurnia Wati Dhea Ika Putri Dwi Nyarianti Dwinda, Tasya Syafa Eka Hayu Elfis Suanto Elmawati Elmawati Elsya Suharnita EMELIA EMELIA Enno Triandini Eva Novita Nurhasanah Ezra Glory Manalu Farida Farida Fikri, Yomaysha Jasmia Fitri Novriyeni Ginanjar, Arus Hardy, Nabilla Hasanah, Rizatul Herni Purnamawati Hesty Marwani Siregar Indah Fitriani Indra, Afifah Reghina Irma Sari Juliana Purba Karina Azzahra Maulani Karisma, Romi KARTINI Kartini Kartini Kartini Kartini, Kartini Khusnal Marzuqo Laylatul Rahmi, Laylatul Luthfiani, Ulfa Maimunah Manalu, Agatha Friendsi Maruli, Fitryani Meldawati Rahman Morri Manik Muhammad Abdi Muliyana, Dewi Nabilah, Ulfa Nadia Nadia Nadia Nadia Nahor Murani Hutapea Nelli Susanti Noveli, Sonya Nurawan Lubis Nurjannah, Ike Nurul Fitria Oktaviani, Nona Payasto, Eko Prayulia Trisandi, Yogi Puji Karunia, Puji Putri Madhavia Putri Yuanita Rahayu Rahayu Ratih Mauliandri Ravina Faradilla Syahril Reny Reski Reny Reski Reny Resmi Rianti Resti Oktazatika Rianti, Resmi Rini Dian Anggraini Rini Hardiyanti Ali Robbiati, Robbiati Rossanti RR. Ella Evrita Hestiandari Sakur Sakur Sakur, Sakur Sandy, Aulia Saputra, Andespa Saputra, Andespa SAPUTRO, AGUS Seftia Wulan Dari Setiani, Nining Siahaan, Paulina Suci Andriani Suharnita, Elsya Suhermi, Suhermi Suhermi, Suhermi Suhermi, Zuhri D Suraji Suraji suraji suraji Suraji Suraji Susanti, Putri Aulia Susda Heleni Swasto, Widya Syamsul Arifin Syarifah Nur Siregar Syofni Syofni Syofni Syofni Syofni, Syofni Tasya Ananda Titi Solfitri Triandini, Bella Wati, Desi Kurnia Wigbertus Ngabu Yanti Yanti Yenita Roza Yurrahma, Arretta Yusa Putra Yusa Putra Zulkarnain Zulkarnain Zulkarnain Zulkarnain Zulkarnain Zulkarnain Zulkarnain Zulkarnain

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