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Sehatta Saragih

Dosen Pendidikan Matematika FKIP Universitas Riau

Author-ID : 3304716

Religion Agriculture, Biological Sciences & Forestry Humanities Chemistry Computer Science & IT Education Languange, Linguistic, Communication & Media Library & Information Science Mathematics Mechanical Engineering Physics Social Sciences Other

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ANALYSIS OF STUDENTS MATHEMATICAL LITERACY ABILITY IN SOLVING PISA PROBLEMS IN TERMS OF STUDENT LEARNING INDEPENDENCE Chintya, Cici Ayu; Saragih, Sehatta; Hutapea, Nahor Murani
JME (Journal of Mathematics Education) Vol 8, No 2 (2023): JME
Publisher : Universitas Sembilanbelas November Kolaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31327/jme.v8i2.1960

Mathematical literacy skills are one of the essential aspects that students need to master because, through this ability, they can solve problems in everyday life. ProvidingÂ Programme for International Student AssessmentÂ (PISA) questions is one of the teachers' efforts to develop students' mathematical literacy skills. This study aims to describe the observed mathematical literacy ability of students learning independence and analyze the difficulties experienced by students in solving PISA problems. The study subjects consisted of 20 students of SMPN 02 Siak Hulu. The research method used is descriptive. The research instrument is PISA test questions oriented to quantity content, learning independence questionnaires, and interview guidelines. The data obtained is analyzed by reducing, presenting, and drawing conclusions. The result of this study is that students doing PISA questions are still experiencing difficulties. This difficulty occurs because students are unfamiliar with PISA model questions. They do not understand the meaning of the problem, do not understand the material in the problem, are confused about determining mathematical concepts, and cannot apply problem-solving strategies.

Media Pembelajaran Berbasis Komputer Model Tutorial Interaktif untuk Memfasilitasi Kemampuan Pemecahan Masalah Matematis Siswa Siahaan, Paulina; Heleni, Susda; Saragih, Sehatta
Juring (Journal for Research in Mathematics Learning) Vol 6, No 4 (2023)
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/juring.v6i4.24103

Mengikuti perkembangan teknologi, maka guru perlu mengembangkan media pembelajaran yang memanfaatkan teknologi seperti komputer, dimana media pembelajaran merupakan salah satu faktor ketercapaian tujuan pembelajaran. Penelitian ini bertujuan untuk mengembangkan media pembelajaran berbasis komputer model interaktif yang valid dan praktis. Media pembelajaran dikembangkan untuk materi penyajian data kelas VII SMP bertujuan untuk memfasilitasi kemampuan pemecahan masalah matematis siswa. Penelitian ini merupakan penelitian pengembangan mengikuti model pengembangan Borg and Gall. Kevalidan media ditentukan oleh hasil angket yang dinilai oleh 3 orang validator dan kepraktisan dilihat dari respon siswa. Hasil penelitian dan analisis data menunjukkan bahwa media pembelajaran berbasis komputer model interaktif valid dan praktis. Namun, penelitian ini perlu dilanjutkan dengan uji coba penggunaannya untuk melihat efektivitasnya terhadap kemampuan pemecahan masalah matematis siswa. Guru dapat menggunakan media pembelajaran berbasis komputer model interaktif ini untuk menunjang pembelajaran materi penyajian data. Namun guru perlu meninjau terlebih dahulu ketersediaan komputer dan listrik di sekolah.

Penerapan model problem-based learning untuk meningkatkan hasil belajar matematika peserta didik Saputro, Agus; Murni, Atma; Saragih, Sehatta
Jurnal Pendidik Indonesia Vol. 6 No. 2 (2025): Jurnal Pendidik Indonesia
Publisher : Karoteh Utama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61291/jpi.v6i2.129

This study aims to enhance the quality of the learning process and improve students' mathematics learning outcomes through the implementation of the Problem Based Learning (PBL) model. PBL is an instructional approach that encourages active student engagement in solving contextual problems to build a deeper conceptual understanding. The method used is classroom action research (CAR), with data collected through observation sheets of teacher and student activities, as well as mathematics learning outcome tests. The research subjects were students of class VIII-2 at MTs YPI Kuala Enok, Indragiri Hilir Regency. The results showed that before the implementation, only 20% of students achieved the Minimum Mastery Criteria (MMC). After the first cycle, this percentage increased to 56.66%, and in the second cycle, it rose to 86.66%. This improvement was also accompanied by enhancements in the learning process in each meeting. Thus, the implementation of the PBL model proved to be effective in improving the learning process and enhancing students’ mathematics learning outcomes.

PENERAPAN PROBLEM BASED LEARNING UNTUK MENINGKATKAN KEMAMPUAN REPRESENTASI MATEMATIS SISWA SMA Maulani, Karina Azzahra; Saragih, Sehatta; Armis, Armis
SIGMA: JURNAL PENDIDIKAN MATEMATIKA Vol. 17 No. 2: Juli - Desember 2025
Publisher : Universitas Muhammadiyah Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26618/sigma.v17i2.18685

Kemampuan representasi matematis (KRM) memiliki peran krusial dalam pembelajaran matematika, namun berbagai hasil studi menunjukkan bahwa capaian siswa di bidang ini tergolong rendah. Penelitian ini bertujuan meningkatkan KRM melalui penggunaan model Problem Based Learning (PBL) dengan topik Statistika. Penelitian dilakukan pada 40 siswa XD SMA Negeri 15 Pekanbaru tahun ajaran 2024/2025. Penelitian menerapkan desain Penelitian Tindakan Kelas (PTK) dan dilaksanakan dalam dua siklus berurutan. Di setiap siklus, kegiatan mencakup perencanaan, pelaksanaan tindakan, pengamatan, serta refleksi terhadap hasil tindakan. Data dikumpulkan melalui dua tes KRM berbentuk uraian berdasarkan indikator representasi visual, simbolik, dan verbal, serta melalui lembar pengamatan aktivitas guru dan siswa. Data penelitian menunjukkan peningkatan skor rata-rata KRM siswa dari 26,65 pada tes awal, naik menjadi 46,87 pada siklus I, dan mencapai 84,2 pada siklus II. Hasil tersebut menunjukkan implementasi PBL berkontribusi positif terhadap perbaikan proses pembelajaran serta peningkatan KRM siswa kelas XD SMA Negeri 15 Pekanbaru pada topik Statistika semester genap tahun ajaran 2024/2025.

IMPLEMENTASI PROBLEM BASED LEARNING UNTUK MENINGKATKAN KECAKAPAN KOMUNIKASI MATEMATIS PADA KONTEN PELUANG Manalu, Ezra Glory; Saragih, Sehatta; Armis, Armis
SIGMA: JURNAL PENDIDIKAN MATEMATIKA Vol. 17 No. 2: Juli - Desember 2025
Publisher : Universitas Muhammadiyah Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26618/sigma.v17i2.18686

Kecakapan komunikasi matematis (KKM) menjadi unsur krusial dalam menunjang keberhasilan dalam pembelajaran matematika, tetapi temuan dari hasil wawancara, observasi, dan tes awal memperlihatkan bahwa KKM peserta didik kelas XA SMAN 15 Pekanbaru masih sangat rendah. Penelitian ini bertujuan meningkatkan KKM melalui penggunaan model Problem Based Learning (PBL) pada konten Peluang. Penelitian ini tergolong Penelitian Tindakan Kelas (PTK) yang diimplementasikan selama dua periode dengan melibatkan 41 peserta didik kelas XA SMAN 15 Pekanbaru tahun akademik 2024/2025. Masing-masing periode mencakup aktivitas perencanaan, pelaksanaan tindakan, pengamatan, dan refleksi. Alat penelitian mencakup perangkat pembelajaran, eksemplar pengamatan aktivitas guru dan peserta didik, serta ujian KKM. Perolehan penelitian menunjukkan bahwa rata-rata skor KKM meningkat dari 27,44 (tes awal) menjadi 51,33 (KKM I) dan 80,10 (KKM II). Secara keseluruhan, penggunaan pembelajaran berbasis masalah dapat mereparasi aktivitas pembelajaran dan menguatkan KKM peserta didik kelas XA SMAN 15 Pekanbaru tahun akademik 2024/2025 pada konten Peluang.

PENERAPAN PROBLEM BASED LEARNING UNTUK MENINGKATKAN PEMAHAMAN MATEMATIS PESERTA DIDIK SMP PADA MATERI SPLDV Oktazatika, Resti; Sakur, Sakur; Saragih, Sehatta; Susanti, Nelli
SIGMA: JURNAL PENDIDIKAN MATEMATIKA Vol. 17 No. 2: Juli - 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.

Meningkatkan Kemampuan Representasi Matematis Siswa Kelas X.7 SMAN 7 Pekanbaru Melalui Implementasi Model Problem Based Learning Rotua, Yuli Ani; Sakur, Sakur; Saragih, Sehatta
OMEGA: Jurnal Keilmuan Pendidikan Matematika Vol. 4 No. 3 (2025): OMEGA (In Press)
Publisher : Program Studi Pendidikan Matematika, Fakultas Keguruan Dan Ilmu Pendidikan, Universitas Alwashliyah Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47662/jkpm.v4i3.1083

This study aimed to improve students’ mathematical representation ability through the Problem Based Learning (PBL) model on the topic of linear equations and inequalities in phase E. The subjects were students of class X.7 at SMA Negeri 7 Pekanbaru in the 2024/2025 academic year. The research employed Classroom Action Research (CAR), which was conducted in two cycles, each consisting of two meetings through the stages of planning, implementing actions, observing, and reflecting. The research instruments consisted of learning tools (ATP and teaching module) and data collection instruments in the form of observation sheets for teacher and student activities, as well as a mathematical representation test (MRT).The results showed that the application of the PBL model improved both the learning process and students’ mathematical representation ability. The analysis of test results indicated significant improvement: the number of students in the very low category decreased from 29 to 3, while those in the high category increased from 2 to 12, and in the very high category from 0 to 11. Thus, the implementation of the PBL model proved effective in improving the learning process and enhancing students’ mathematical representation ability in linear equations and inequalities

Development Of Learning Based Teaching Materials On Quadratic Function Materials To Improve Students' Mathematical Representation Skills Luthfiani, Ulfa; Saragih, Sehatta; Suanto, Elfis
JTMT: Journal Tadris Matematika Vol 6 No 2 (2025): Desember
Publisher : Universitas Islam Ahmad Dahlan (UIAD)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47435/jtmt.v6i2.4191

This research aims to develop discovery learning-based teaching materials on quadratic functions to improve mathematical representation abilities of grade X students. The low mathematical representation ability of Indonesian students reflected in TIMSS 2015 results is the research background. Research and Development (R&D) methodology with a 4D model (Define, Design, Develop, Disseminate) was used to develop the learning product. Validation was conducted by three mathematics education experts, practicality testing through student response questionnaires, and effectiveness was measured using a Post-test Only Control Group design comparing experimental and control classes. The findings showed very high validity at 91.54%, practicality reached 79.31% in the practical category, and significant effectiveness demonstrated through average score increase from 73.27 to 83.20 (sig = 0.000 < 0.05). The Z proportion test yielded 1.8974 > 1.645, indicating more than 75% of students achieved the minimum mastery standard. This teaching material successfully facilitates mathematical representation skill development through structured discovery activities, although visual representation aspects need further optimization. The discovery learning approach effectively optimizes students' knowledge construction through meaningful learning experiences while overcoming conventional learning limitations in developing mathematical representation competencies

Co-Authors ', Armis ', Asmarita ', Sudarmono ', Suhermi ', Syofni ', Zuhri D Ade Suci Ramadhani 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 Arus Ginanjar Arus Ginanjar Atma Murni Atma Murni Chintya, Cici Ayu Cici Ayu Chintya Desi Kurnia Wati Dhea Ika Putri Dwinda, Tasya Syafa Eka Hayu Elfis Suanto Elsya Suharnita EMELIA EMELIA Enno Triandini Eva Novita Nurhasanah Farida Farida Fikri, Yomaysha Jasmia Ginanjar, Arus Hardy, Nabilla Hasanah, Rizatul Herni Purnamawati Hesty Marwani Siregar Indah Fitriani Irma Sari Juliana Purba Karisma, Romi KARTINI Kartini Kartini Kartini Kartini, Kartini Khusnal Marzuqo Laylatul Rahmi, Laylatul Luthfiani, Ulfa Maimunah, Maimunah Manalu, Ezra Glory Maruli, Fitryani Maulani, Karina Azzahra Meldawati Rahman Morri Manik Muhammad Abdi Muliyana, Dewi Nadia Nadia Nadia Nadia Nahor Murani Hutapea Nelli Susanti Noveli, Sonya Novriyeni, Fitri Nurawan Lubis Nurjannah, Ike Nurul Fitria Oktaviani, Nona Oktazatika, Resti 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 Rianti, Resmi Rini Dian Anggraini Rini Hardiyanti Ali Robbiati, Robbiati Rotua, Yuli Ani RR. Ella Evrita Hestiandari Sakur, Sakur Sandy, Aulia Saputra, Andespa Saputra, Andespa SAPUTRO, AGUS Seftia Wulan Dari Setiani, Nining Siahaan, Paulina Solly Aryza 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 Titi Solfitri Triandini, Bella Wati, Desi Kurnia Yenita Roza Yurrahma, Arretta Yusa Putra Zulkarnain Zulkarnain Zulkarnain Zulkarnain Zulkarnain Zulkarnain Zulkarnain Zulkarnain

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