Garuda - Garba Rujukan Digital

p-Index From 2021 - 2026

9.598

P-Index

This Author published in this journals

Sehatta Saragih

Dosen Pendidikan Matematika FKIP Universitas Riau

Author-ID : 3304716

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

Published : 113 Documents Claim Missing Document

Claim Missing Document

Articles

8 9 10 11 12

Pengembangan Instrumen Tes Higher Order Thinking Skills (HOTS) Konten Perbandingan untuk Siswa Fase D Nabilah, Ulfa; Armis, Armis; Saragih, Sehatta
Polinomial : Jurnal Pendidikan Matematika Vol. 5 No. 1 (2026)
Publisher : Papanda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56916/jp.v5i1.3088

Higher Order Thinking Skills (HOTS) are essential competencies that students must possess. Many students still exhibit low levels of HOTS. This study aims to develop a Higher Order Thinking Skills (HOTS) instrument in comparison content for Phase D students. The research employed a development studies model consisting of two main stages: the preliminary stage and formative evaluation. The formative evaluation stage comprised several steps, including self-evaluation, expert review, one-to-one, small group, and field testing. The research subjects involved 30 Phase D students. Data were collected through validation sheets, student readability questionnaires, and HOTS test results, which were analyzed using Anates Uraian 4.0.5 software. The results indicated that the ten HOTS items developed met both rational and empirical validity criteria, showed very high reliability (0.95), had varying levels of difficulty (two easy, six moderate, and two difficult items), and demonstrated good discriminating power. Therefore, the developed HOTS instrument on comparison content is considered feasible to be used as an evaluation tool to enhance students’ critical, analytical, and creative thinking skills.

Penerapan Model Problem Based Learning pada Materi Kekongruenan dan Kesebangunan untuk Meningkatkan Kemampuan Komunikasi Matematis Siswa SMP Manalu, Agatha Friendsi; Murni, Atma; Saragih, Sehatta
Polinomial : Jurnal Pendidikan Matematika Vol. 5 No. 1 (2026)
Publisher : Papanda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56916/jp.v5i1.3605

This study aims to improve the mathematical communication skills of students in class IX-6 at SMP Negeri 3 Mandau through the implementation of the Problem Based Learning model on the topics of congruence and similarity. Based on interviews and observations, it was found that students faced difficulties in understanding problems, explaining mathematical ideas, and presenting mathematical models. This classroom action research was conducted in two cycles, with each cycle consisting of planning, implementation, observation, and reflection. The data collected included qualitative and quantitative data, which were analyzed to evaluate the improvement in students' mathematical communication skills. The results of the study indicate that the implementation of the Problem Based Learning model successfully enhanced student engagement and mathematical communication skills. The average KKM score of students increased from 31 in the initial test to 63 in cycle I, and reached 90 in cycle II. This improvement demonstrates that the Problem Based Learning model is effective in enhancing the learning process and improving students mathematical communication skills. Therefore, it can be concluded that the application of the Problem Based Learning model on the topics of congruence and similarity can enhance the quality of mathematics education in class IX-6 at SMP Negeri 3 Mandau.

PENGEMBANGAN MODUL AJAR BERBASIS PROBLEM BASED LEARNING UNTUK MEMFASILITASI KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA Rossanti; Saragih, Sehatta; Siregar, Syarifah Nur
SIGMA: JURNAL PENDIDIKAN MATEMATIKA Vol. 18 No. 1: Juni 2026
Publisher : Universitas Muhammadiyah Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26618/3gav5k16

Tujuan Penelitian: Penelitian ini bertujuan untuk menghasilkan modul ajar berbasis Problem Based Learning (PBL) yang valid dan praktis untuk memfasilitasi KPMM siswa fase D pada materi bangun ruang sisi lengkung. Metode Penelitian: Penelitian ini menggunakan metode Research and Development (R&D) dengan model pengembangan 4D (Define, Design, Develop, Disseminate). Instrumen penelitian yang digunakan meliputi lembar validasi ahli dan angket respons siswa. Pengumpulan data dilakukan melalui validasi oleh tiga orang validator serta uji coba terbatas kepada 12 siswa kelas IX SMP Negeri 7 Tualang. Data yang diperoleh dianalisis secara kuantitatif menggunakan skala Likert untuk menentukan tingkat kevalidan dan kepraktisan produk yang dikembangkan. Hasil Penelitian: Hasil penelitian menunjukkan bahwa modul ajar yang dikembangkan memperoleh rata-rata nilai validitas sebesar 93,43% dengan kategori sangat valid. Selain itu, hasil angket respons siswa pada uji coba kelompok kecil menunjukkan rata-rata nilai kepraktisan sebesar 88,65% dengan kategori sangat praktis. Kontribusi: Berdasarkan hasil tersebut, modul ajar berbasis PBL yang dikembangkan telah memenuhi kriteria valid dan praktis, sehingga layak digunakan sebagai salah satu alternatif perangkat pembelajaran untuk memfasilitasi kemampuan pemecahan masalah matematis siswa pada materi bangun ruang sisi lengkung.

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 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 Indra, Afifah Reghina Irma Sari Juliana Purba Karisma, Romi KARTINI Kartini Kartini Kartini Kartini, Kartini Khusnal Marzuqo Laylatul Rahmi, Laylatul Luthfiani, Ulfa Maimunah, Maimunah Manalu, Agatha Friendsi Manalu, Ezra Glory Maruli, Fitryani Maulani, Karina Azzahra Meldawati Rahman Morri Manik Muhammad Abdi Muliyana, Dewi Nabilah, Ulfa 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 Rossanti 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 Sriyanti Mustafa 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 Yanti Yanti Yenita Roza Yurrahma, Arretta Yusa Putra Zulkarnain Zulkarnain Zulkarnain Zulkarnain Zulkarnain Zulkarnain Zulkarnain Zulkarnain

Title

Found 113 Documents
Search

Abstract

Abstract

Abstract

Title Search

Found 113 Documents Search

Abstract

Abstract

Abstract

Title

Found 113 Documents
Search