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Yusuf Hartono

Universitas Sriwijaya

Author-ID : 2999016

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KEMAMPUAN PEMAHAMAN KONSEP SISWA PADA PEMBELAJARAN MATEMATIKA MENGGUNAKAN MODEL GENERATIVE LEARNING DI KELAS VIII SMP NEGERI 6 PALEMBANG Maharani, Levana; Hartono, Yusuf; Hiltrimartin, Cecil
Mathematics Education Journal Vol. 7 No. 2 (2013): Jurnal Pendidikan Matematika
Publisher : Universitas Sriwijaya in collaboration with Indonesian Mathematical Society (IndoMS)

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

This study aims to determine the ability to understand students' concepts on learning mathematics using generative learning model. This research is a descriptive research. Subjects in this study were students of class VIII.2 SMP Negeri 6 Palembang with the number of students 27 people. Data retrieval is done by using test. The data used in this research is the data of the ability of concept comprehension after doing the test questions to measure students' concept comprehension ability. Problem test is given after the learning process and refers to the concept of understanding indicators. Based on the results of the study concluded that the ability to understand the concept of students who learn with generative learning model is quite good. DOI: https://doi.org/10.22342/jpm.7.2.4650.1-16

Gen Z Generation's Difficulties in Proving Trigonometric Identities with The Help of Gpt Chat Putih Fitri; Yusuf Hartono; Meryansumayeka Meryansumayeka
EDUKASIA: Jurnal Pendidikan dan Pembelajaran Vol. 5 No. 2 (2024): Edukasia: Jurnal Pendidikan dan Pembelajaran
Publisher : LP. Ma'arif Janggan Magetan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62775/edukasia.v5i2.1251

Artificial Intelligence (AI) and machine learning technologies, which play an important role among emerging technologies, have developed rapidly and have begun to be used in various fields in recent years, especially in education. Many factors cause low student learning ability in mathematics lessons. This study aimed to analyze Gen Z students' difficulties in completing trigonometric identity proofs by utilizing ChatGPT Trigonometry-assisted learning. The type of research used was qualitative research. Research data were collected through observation of student activities, direct interviews, and related literature studies. This research was conducted in SMA N 1 Indralaya Selatan. The instruments used were test question sheets and interview guidelines. The results of this study indicate that Generation Z struggles with basic trigonometry concepts, early solution strategies, and proper algebraic manipulation. In addition, reliance on ChatGPT often reduces students' conceptual understanding of the material. This article recommends learning strategies integrating technology and direct teacher assistance to improve learning effectiveness.

PENGEMBANGAN LKPD FUNGSI KUADRAT BERBASIS PEMBUKTIAN DENGAN MODEL ARGUMENTASI TOULMIN UNTUK MEMFASILITASI KEMAMPUAN ARGUMEN MATEMATIS Debi Suci Putri; Cecil Hiltrimartin; Yusuf Hartono; Nyimas Aisyah
AKSIOMA: Jurnal Program Studi Pendidikan Matematika Vol 13, No 4 (2024)
Publisher : UNIVERSITAS MUHAMMADIYAH METRO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/ajpm.v13i4.9181

Riset berikut tujuannya guna memperoleh LKPD berbasis pembuktian fungsi kuadrat di SMA yang valid dan praktis serta mempunyai efek potensial pada kemampuan argumentasi matematis pelajar. Riset diperlukan lantaran kemampuan argumentasi matematis pelajar yang termasuk rendah dan belum adanya bahan ajar yang dapat mendukung kemampuan argumentasi matematis pelajar. Jenis riset yang dipakai ialah studi pengembangan bermodel Tessmer yang tersusun atas evaluasi pendahuluan dan formatif. Subjek dalam riset yakni pelajar kelas X SMA Muhammadiyah 1 Palembang semester ganjil tahun ajaran 2023/2024. Teknik pengumpulan data yang dipakai pada riset berikut yakni kuesioner, wawancara, dan tes. Validitas LKPD berbasis bukti dicermati melalui 3 faktor yakni konstruk, isi, serta bahasa yang terdapat pada lembar validasi dalam tahapan expert review dan sesuai masukan/komentar dari hasil percobaan one to one. Kepraktisan LKPD berbasis bukti yang terlihat dari hasil hitung kuesioner yang diberi dalam tahapan kelompok kecil. Hasil riset memaparkan bahwasanya pengembangan LKPD mempunyai persentase kevalidan 87,17% dengan kriteria sangat valid dan persentase kepraktisannya 84,5% dengan kriteria sangat praktis. Sehingga dapat disimpulkan bahwa LKPD yang dikembangkan valid dan praktis serta mempunyai efek potensial pada kemampuan argumentasi matematis pelajar yang terlihat dari hasil analisis data tes dengan rata-rata argumentasi pelajar berada pada level 4 (argumentasi siswa disusun dengan baik). The following research aims to obtain proof-based student worksheet on quadratic functions in high school that is valid and practical and has a potential effect on students' mathematical argumentation abilities. The following research is needed because students' mathematical argumentation abilities are low and there are no teaching materials that can support students' mathematical argumentation abilities. The type of research used is a development studies with Tessmer model which is composed of preliminary and formative evaluations. The subjects used in the following research are class X students of Muhammadiyah 1 Palembang Senior High School odd semester of the 2023/2024 academic year. The data collection techniques used in the following research are questionnaires, interviews and tests. The validity of proof-based student worksheet is examined through 3 factors, namely construct, content and language contained in the validation sheet in the expert review stage and according to suggestions/comments from the results of one to one experiments. The practicality of proof-based student worksheet that can be seen from the results of calculating questionnaires given in the small group stage. The research results show that the development of student worksheet has a validity percentage of 87.17% with very valid criteria and a practical percentage of 84.5% with very practical criteria. So it can be concluded that the developed LKPD is valid and practical and has a potential effect on students' mathematical argumentation skills as seen from the results of test data analysis with the average student argumentation at level 4 (student argumentation is well organized).

Students’ mathematical modelling ability in solving PISA tasks on uncertainty and data content Nurrosyadah, Naqiyyah; Utami, Marta Risa Putri; Darmawijoyo; Hartono, Yusuf
Jurnal Gantang Vol 10 No 1 (2025): Jurnal Gantang
Publisher : Universitas Maritim Raja Ali Haji

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31629/jg.v10i1.7193

Mathematical modeling is key in helping students connect abstract mathematics with real-life situations by transforming practical problems into mathematical forms, solving them analytically, and interpreting solutions in context. This study investigates junior high school students' mathematical modeling abilities in solving PISA tasks on Uncertainty and Data, analyzed through the OECD (2018) framework of formulating, employing, interpreting, and evaluating. Employing a descriptive qualitative approach, we collected data through written tests and follow-up interviews with seventh-grade students. Findings reveal that students show moderate ability in employing mathematical procedures (50.2%) but struggle with formulating problems (45.3%). Most critically, they demonstrate significant difficulties in interpreting (33.7%) and evaluating (28.5%) solutions within real-world contexts, impairing their ability to apply mathematics practically. Qualitative analysis of written tests and interviews shows that students often develop mental strategies but fail to articulate them in writing. These findings underscore the critical need to strengthen higher-order modeling skills in instructional practices, particularly interpretation, evaluation, and mathematical communication. The study reveals essential gaps between procedural competence and practical application, suggesting that curriculum reforms should emphasize problem-solving approaches to develop mathematical modeling abilities that meet PISA’s standards.

Systematic Literature Review: Mathematics Learning for Children with Special Needs Marhamah, Marhamah; Putri, Ratu Ilma Indra; Zulkardi, Zulkardi; Hartono, Yusuf
Indiktika : Jurnal Inovasi Pendidikan Matematika Vol. 7 No. 2 (2025): Indiktika : Jurnal Inovasi Pendidikan Matematika
Publisher : Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31851/indiktika.v7i2.17016

The aim of this research is to classify research related to mathematics learning in children with special needs into several categories. This Systematic Literature Review (SLR) research identifies, evaluates, and interprets research that is relevant to mathematics learning for children with special needs. Researchers reviewed 16 articles from 9 journal indexed by Scopus. The results of this research are in the form of classifying the content of the article into 5 categories, namely subjects, material, education level, methods, and student competencies, which can be used as recommendations in further research regarding mathematics learning for children with special needs. The classification results revealed that the most frequently studied research subjects were children with autism, accounting for 37.5% of the articles. In terms of instructional content, the most commonly explored topic was whole number operations, with a proportion of 42.86%. Regarding educational level, elementary school emerged as the most common focus, appearing in 56.25% of the studies. As for research methods, both qualitative and research and development approaches were used in 18.75% of the articles, respectively. Meanwhile, in terms of student competencies, conceptual understanding was the dominant focus, discussed in 41.67% of the reviewed studies.

Pendampingan Penyusunan LKPD Pemecahan Masalah Berbasis Bukti untuk Meningkatkan Hots di Kalangan Guru MGMP Matematika Kabupaten Banyuasin Hiltrimartin, Cecil; Hartono, Yusuf; Pratiwi, Weni Dwi; Azka, Dea Alvionita
Jurnal Abdi Masyarakat Indonesia Vol 5 No 3 (2025): JAMSI - Mei 2025
Publisher : CV Firmos

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54082/jamsi.1885

Di era kemajuan pendidikan saat ini, pengembangan bahan ajar yang sesuai dengan kebutuhan siswa telah menjadi fokus utama. Salah satu bidang perhatian adalah penerapan Keterampilan Berpikir Tingkat Tinggi (Higher-Order Thinking Skills/HOTS) dalam pembelajaran matematika, khususnya dalam konteks pemecahan masalah. Kemampuan siswa untuk menyelesaikan masalah matematika yang kompleks secara efektif telah menjadi tantangan yang sudah lama dihadapi, dengan banyak penelitian yang menyoroti perlunya strategi pengajaran dan sumber belajar yang lebih baik. Penelitian menunjukkan bahwa kemampuan siswa dalam pemecahan masalah matematika sering kali belum memadai. Salah satu pendekatan untuk mengatasi masalah ini adalah memberikan pelatihan penggunaan Lembar Kerja Peserta Didik (LKPD) berbasis bukti (Evidence-Based Student Worksheets) yang dirancang untuk mendorong HOTS dalam pemecahan masalah. Kegiatan pengabdian ini bertujuan untuk mengeksplorasi perspektif dan pengalaman guru matematika di Kabupaten Banyuasin terkait pengembangan dan penerapan LKPD berbasis bukti untuk pemecahan masalah berbasis HOTS dalam pembelajaran matematika. Kegiatan dilakukan secara luring dan juga daring selama 3 bulan. Berdasarkan hasil survey, 93% peserta menyatakan puas terhadap kegiatan pengabdian ini dan sangat setuju bahwa kegiatan ini mendukung pembelajaran dan pengembangan keterampilan guru.

Perbedaan Prokrastinasi Akademik Siswa SMA Ditinjau Dari Jenis Sekolah Ferdiansyah, Muhammad Aldy; Kurniawati, Rika; Jannah, Anisa Raudhatul; Sari, Puspa; Dwita, Adel Karen; Juniarti, Juniarti; Hartono, Yusuf; Lubis, Khadijah
Guidance : Jurnal Bimbingan dan Konseling Vol 22 No 1 (2025): Guidance: Jurnal Bimbingan dan Konseling
Publisher : Prodi Bimbingan dan Konseling Fakultas Keguruan dan Ilmu Pendidikan | Universitas Islam As-Syafi'iyah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34005/guidance.v22i1.4662

Penelitian ini bertujuan menguji perbedaan tingkat prokrastinasi akademik berdasarkan jenis sekolah, karena kecenderungan siswa dalam menunda tugas diduga dipengaruhi oleh karakteristik lingkungan pendidikan masing-masing. Penelitian menggunakan pendekatan kuantitatif dengan metode komparatif tipe ex-post facto. Sampel berjumlah 120 siswa dipilih melalui teknik simple random sampling dari ketiga jenis sekolah (SMA Negeri, SMA Swasta, dan SMA Islam). Data dikumpulkan menggunakan angket prokrastinasi akademik dan dianalisis dengan uji One-Way ANOVA serta dilanjutkan uji Post Hoc. Hasil menunjukkan nilai Sig. 0,000, membuktikan adanya perbedaan signifikan antar jenis sekolah. Tingkat prokrastinasi tertinggi terdapat pada siswa SMA Islam, disusul SMA Negeri, dan terendah SMA Swasta. Perbedaan signifikan ditemukan antara SMA Islam dengan dua sekolah lainnya (Sig. 0,001), sementara antara SMA Negeri dan SMA Swasta tidak terdapat perbedaan signifikan (Sig. 1,000).

Learning proof of trigonometric identities with ChatGPT Fitri, Putih; Hartono, Yusuf; Meryansumayeka, Meryansumayeka
Journal of Honai Math Vol. 8 No. 1 (2025): Journal of Honai Math
Publisher : Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/jhm.v8i1.755

The integration of artificial intelligence (AI) into mathematics education has demonstrated potential in enhancing students’ conceptual understanding and reasoning abilities, particularly in the context of mathematical proof. Despite these advancements, limited research has investigated the use of AI-based language models such as ChatGPT to support students in learning the logical structure of trigonometric identity proofs, which remain a challenging topic for many learners. To address this gap, this study introduces a novel learning trajectory assisted by ChatGPT aimed at improving students’ abilities in constructing and understanding trigonometric proofs. Employing a validation study design, the research was conducted in three phases: experimental preparation, experimental design, and retrospective analysis. Data were collected through observations, interviews, document analysis, and written tests, and analyzed qualitatively. A total of 50 eleventh-grade students engaged in three learning activities: studying proofs with ChatGPT-generated explanations, interacting directly with ChatGPT to explore proof strategies, and independently solving proof tasks without AI assistance. The findings indicate that ChatGPT effectively supports students in comprehending the logical steps involved in proof construction, enhances their engagement with mathematical reasoning, and promotes deeper understanding of trigonometric identities. These results highlight the potential impact of conversational AI tools in fostering proof-based thinking and enriching mathematics instruction at the secondary education level.

Validity Of Student Worksheets Based On Computational Thinking With The Context Of Local Wisdom In Musi Banyuasin To Support Numeracy Skills Marina, Rini; Hapizah, Hapizah; Hartono, Yusuf
Mathline : Jurnal Matematika dan Pendidikan Matematika Vol. 10 No. 2 (2025): Mathline : Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas Wiralodra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/mathline.v10i2.940

In the context of 21st-century education, numeracy skills are a required competency for students. Numeracy is a person's ability to understand and use mathematics in solving problems in everyday life. To ensure an effective learning process, supporting teaching materials are needed to enhance students' numeracy skills, such as student worksheets. This study aims to evaluate the validity of student worksheets based on computational thinking and local wisdom of Musi Banyuasin, supported by GeoGebra, to enhance students’ numeracy skills. The validation process by experts produced validity test data collected using a validation sheet in the form of a Likert scale questionnaire, which was then analyzed to determine the level of validity of the student worksheets. The results of the average percentage of student worksheets were activity 1 reached 84.05% and activity 2 reached 84.82% in the first meeting. By the second meeting, activity 1 reached 86.2%, and activity 2 reached 86.51%. Thus, it can be said that the student worksheets developed has met the criteria of being very valid, so it is worthy of use. This indicates that the worksheets contribute positively to the field of mathematics education by providing effective support for improving students' numeracy skills.

Workshop Penyusunan Instrumen Literasi Statistik bagi Calon Guru Berbasis Konteks Perubahan Iklim Friansah, Drajat; Indra Putri, Ratu Ilma; Hartono, Yusuf; Somakim, Somakim
JURNAL CEMERLANG: Pengabdian pada Masyarakat Vol 7 No 2 (2025): JURNAL CEMERLANG: Pengabdian Pada Masyarakat
Publisher : LP4MK STKIP PGRI Lubuklinggau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31540/jpm.v7i2.3480

The low level of statistical literacy among teachers and pre-service teachers poses a significant challenge to the implementation of the Merdeka Curriculum and the Minimum Competency Assessment (AKM). This community engagement activity aims to enhance statistical literacy through a workshop that integrates the issue of climate change. The workshop methodology involves conceptual sessions, practical instrument development, and evaluation through pretest and posttest. The integration of actual data from the Meteorological, Climatological, and Geophysical Agency (BMKG) and the application of the Indonesian Realistic Mathematics Education (PMRI) approach are key elements of the methodology. Evaluation results indicate a significant improvement in participants' understanding of statistical concepts and their ability to develop contextual assessment instruments. This approach has also proven effective in fostering critical awareness and data-based thinking skills. The workshop serves as a strategic step in strengthening statistical competencies among teachers and pre-service teachers, which is essential for building a solid foundation of data literacy in educational settings.

Co-Authors -, Ogi Meita Utami A. Jariah, Novika Andriani A.A. Ketut Agung Cahyawan W Abd. Rasyid Syamsuri Akhmad Sumbandari Amarta, Nadiati Amrina Rizta Amrina Rosyada Ananta, Syahira Hayu Annisa Oktavia Lestari Anton Jaelani Anton Jaelani Araiku, Jeri Arbella Sri Marleny Arbella Sri Marleny M Arden Naser Yustian Simarmata Ardiansyah, Hijir Ardina Mayasari Awaliah, Salsabila Azka 'Afifah Azka, Dea Alvionita Azzahra, Putri Bambang Suprihatin Barbara van Amerom Basa, Zahra Alhumairah Bella Juwita Rezky Budi Santoso Bunayati, Hanifah Cecil Hiltrimartin Cecil Hiltrimartin Cecil Hiltrimartin Cecil Hiltrimartin Cecil Hiltrimartin Chn, Rafika Riana Darmawijoyo Darmawijoyo, Darmawijoyo Darmawijoyo, Darmowijoyo Debi Suci Putri Dede de Haan Desty Rupalestari Dewi, Agatha Indy Candra Diah Dwi Santri Diah Dwi Santri Dina Octaria Drajat Friansah Duano Sapta Nusantara Dwi Panggih Nugrahaini Ningtyas Dwita, Adel Karen Eka Fitri Puspa Sari, Eka Fitri Puspa Elfrida Ratnawati Elis Sulastri Ely Susanti Etika Prasetyani Etika Prasetyani, Etika Ety Septiati Evi Yuliza, Evi Fanni Fatoni, cakrawala Febiurbaini, Nurmaya Feli Ramury Ferdiansyah, Muhammad Aldy Firaisti, Sicilia Firdaus Firdaus Firsta, Risa Rahmatia Fitri Maya Puspita Fitri, Putih Frans van Galen Frans van Galen Fridgo Tasman Futri Hikma Fatona Futri Hikma Fatona Hanifah Bunayati Hapizah Hardian Mei Fajri Hartono, Indaryanti Henry Kurniawan Henry Kurniawan Hermina Disnawati, Hermina Hery, Rosmala Dewi Hidayat, Syafri Hikmayati, Citra Hiltrimartin, Cecil Imam Adhitya Nugraha Indah Nur Hijriyah Indaryanti Indaryanti Indriati Indriati Indriati Irka, Irka Irkham Ulil Albab Jaap den Hertog Jannah, Anisa Raudhatul Januar Sitorus, Rico Jayanti, Jayanti Jeri Araiku Jesika Dwi Putriani Jumroh Jumroh Juniarti Juniarti Komariyatiningsih, Novi Kurnia Rahmi Yuberta Kurniadi, Elika Leonardo Jonathan Shinariko Lestari, S R Lestaria N, Yunika Levana Maharani Levana Maharani Liana Septy Listen Prima, Listen Listina Tri Dharmayanti Lubis, Khadijah Lusiana Lusiana Lusiana Lusiana Lusiana M., Arbella Sri Marleny Maharani, Levana Malalina Malalina Malalina Manalu, Michael Amin Marhamah Marhamah Marhamah Marina, Rini Marini Fitriani Marleny, Arbella Sri Maya Saftari Meidiansyah, Rifki Meilani Safitri Meilani Safitri MEILANI SAFITRI - UNIVERSITAS SRIWIJAYA Melinda Chusnul Chotima Meriza, Dyna Meryansumayeka Meryansumayeka Mewa Zabeta, Mewa Michael Amin Manalu Moch. Lutfianto Moch. Lutfianto Mulyono, Budi Mutiara, Nia Bening Nadia Zuliaty Syaputri Nadia Zuliaty Syaputri Nenden Octavarulia Shanty Nenden Octavarulia Shanty Nengyanti Nengyanti, Nengyanti Neny Lestari Nessa, Widya Nety Wahyu Saputri Nila Kesumawati Nizarwati Nizarwati Nizarwati Nofriati, Nursa Fatri Nora Surmilasari Novi Komariyatiningsih Noviafitri, Selly Novika Andriani A. Jariah Novita Sari Nurdiyanto, Tito Nurrosyadah, Naqiyyah Nursa Fatri Nofriati Nurwijayanti Nyimas Aisyah Nyimas Aisyah PANDI PUTRA TIHURI Patrisia, Salsabila Pratiwi, Weni Dwi Pratiwi, Weni Dwi Prattiwi, Rika Puji Astuti PUJI ASTUTI Puji Astuti Puri Pramudiani Purwoko Purwoko Purwoko Purwoko Purwoko Purwoko Purwoko Puspa Sari, Puspa PUTERI APRILIANTI Putih Fitri Putri Putri, Putri Putri Ratu Ilma Indra Putri, Debi Suci Putri, Mariyana Eka Putri, Nimas Dahlia Rahayu, Chika Rahma Siska Utari Ramandani, M. Rizky Ratu Ilma Ratu Ilma Indra Putri Renny Sendra Wahyuni Reny Shinta Sari Reny Wahyuni Retna Safitri, Erna Riduan, Lindawaty Rika Firma Yenni, Rika Firma Rika Kurniawati Rismayana, Yenni Risnina Wafiqoh Riswan Jaenudin Rita Novita Rita Novita Rohana ROHANA ROHANA Rohana Rohana Rosmalia Septiana Rully Charitas Indra Prahmana Rupalestari, Desty Sakiman, Novi Komariyatiningsih Sanjaya, Dekky Sanova, Yanna Santoso, Budi Sari, Arika Scristia, Scristia Selly Noviafitri Sicilia Firaisti Silvia Fitriani Simarmata, Ruth Helen Somakim, Somakim Somakin . Sri Hartati Sri Hartati Sri Imelda Edo Stefanny Hepta Augustine Sujinal Arifin Sukmaningtyas, Novika Supriyadi, Heri Surmilasari, Nora Susanti, L.R. Retno Suswiti, Suswiti Syutaridho Syutaridho Syutaridho Syutaridho Tati Tati Tati titin wijayanti Tito Nurdiyanto Tri Oktaria Trimurti Saleh Trimurti Saleh Umardi, Qarsela Tiara Umi Puji Lestari Umi Puji Lestari Umi Puji Lestari, Umi Puji Utami, Marta Risa Putri Vebrian, Rajab Wahyu Wibowo Wardani, Ambarsari Kusuma Welly Yanti Widya Nessa Winda Wulandari Windria, Hening Wulandari, Trisna Wuli Oktiningrum Wuli Oktiningrum, Wuli Yanna Sanova Yanti, Welly Yayan Eryandi Yayan Eryandi, Yayan Yenny Anggreini Sarumaha Yosi Ismawati Yudi Yunika Putra, Yudi Yunika Yufitri Yanto Yukans, Septy Sari Yulianita Maharani Yulianti Yulisa Aulia Yullys Helsa Zeta Ariano Zuli Nuraeni Zulkardi Zulkardi Zulkardi Zulkardi Zulkardi Zulkardi Zulkardi Zulkardi Zulkardi Zulkardi Zulkardi Zulkardi Zulkardi

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