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All Journal Paradikma: Jurnal Pendidikan Matematika JURNAL PENELITIAN BIDANG PENDIDIKAN Journal of Student Research Jurnal Kreasi Rakyat Jurnal Mahasiswa Kreatif International Journal of Education, Language, Literature, Arts, Culture, and Social Humanities Bersatu: Jurnal Pendidikan Bhinneka Tunggal Ika Jurnal Riset Rumpun Ilmu Pendidikan (JURRIPEN) Trigonometri: Jurnal Matematika dan Ilmu Pengetahuan Alam PESHUM
Tiur Malasari Siregar
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Religion Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Physics Public Health Social Sciences Other

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PENERAPAN MODEL PEMBELAJARAN APTITUDE TREATMENT INTERACTION (ATI) DALAM UPAYA MENINGKATKAN HASIL BELAJAR Tiur Malasari Siregar
JURNAL PENELITIAN BIDANG PENDIDIKAN Vol 21, No 2 (2015)
Publisher : LPPM Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jpbp.v21i2.3373

Abstract

Abstrak Penelitian ini bertujuan untuk mengetahui hasil belajar dan  peningkatanhasil belajar dengan menggunakan  model pembelajaran ATI pada matakuliahGeometri Euclid non Euclid. Penelitian ini lebih menekankan kepada pemberianperlakuan (treatment) yang berbeda dalam pembelajarannya, sesuai dengankarakteristik masing-masing kelompok mahasiswa (tinggi, sedang dan rendah)sehingga dengan cara demikian diharapkan tercipta optimalisasi hasil belajar. Halini didasari bahwa optimalisasi hasil belajar dapat dicapai melalui penyesuaianantara pembelajaran (treatment) dengan perbedaan kemampuan (aptitude)mahasiswa. Perlakuan yang dilakukan pada kelompok berkemampuan tinggi adalahpembelajaran self learning  dengan menggunakan modul, sedangkan pada kelompoksedang dan rendah diberlakukan pembelajaran regular atau  konvensional. Hasilpenelitian sebelum pemberian tindakan diperoleh nilai rata-rata mahasiswa sebesar32 dengan ketuntasan secara klasikal sebesar 15%. Setelah pemberian tindakanpengajaran dengan model pembelajaran ATI diperoleh rata-rata tes hasil belajarsiklus I mencapai 59,5 dengan tingkat ketuntasan secara klasikal sebesar 42,5%.Karena hasil yang diperoleh untuk pembelajaran secara klasikal belum memenuhinilai ketuntasan, maka dilanjutkan pada siklus II dengan memperbaiki pembelajaransesuai hasil refleksi. Nilai rata-rata pada tes hasil belajar II mencapai 74,25 dengantingkat ketuntasan belajar klasikal mencapai 85%. Ini berarti menujukkan bahwamodel pembelajaran ATI dapat mengatasi kesulitan belajar mahasiswa sekaligusdapat meningkatkan hasil belajar mahasiswa. 
Penerapan PBL dalam Peningkatan Minat Belajar Siswa pada Materi Statistika di SMA Negeri 8 Medan Nadya Ayu Putri; Herbin Manurung; Tiur Malasari Siregar
PARADIKMA: JURNAL PENDIDIKAN MATEMATIKA Vol 15, No 2 (2022): PARADIKMA JURNAL PENDIDIKAN MATEMATIKA
Publisher : Study Program of Mathematics Education of Unimed Postgraduate Program

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/paradikma.v15i2.40126

Abstract

Penelitian ini bertujuan untuk menarik minat siswa kelas XII MIA 5 SMA Negeri 8 Medan dalam pembelajaran matematika melalui PBL. Variabel minat belajar diperiksa perubahannya. Penelitian ini menggunakan pembelajaran berbasis masalah sebagai variabel tindakan. Contoh: penelitian tindakan kelas. Angka dan hasil belajar siswa dikumpulkan. Nilai rata-rata minat belajar siklus I sampai siklus II adalah 82,28. Hal ini meningkat dari 17% pra siklus menjadi 80% siklus II. Model PBL meningkatkan siklus I 60% menjadi siklus II 80%. Pembelajaran berbasis masalah meningkatkan perhatian (PBL) kelas XII MIA 5 SMA Negeri 8 Medan.
Pengembangan Media Pembelajaran Berbasis Android untuk Meningkatkan Pemahaman Matematis Siswa dalam Penerapan Model Problem Based Learning Natasya Isabel Br. Siahaan; Tiur Malasari Siregar
Jurnal Mahasiswa Kreatif Vol. 2 No. 1 (2024): Januari : Jurnal Mahasiswa Kreatif
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/jmk-widyakarya.v2i1.2731

Abstract

Based on the results of the needs analysis in the learning process, a development of learning media is needed. This research aims to create this product to be more valid, practical and effective in improving students' mathematical understanding. This research and development uses the ADDIE (Analyze, Design, Development, Implementation, and Evaluate) development model. The subjects of this research were 30 students of class X Science 1 at SMA Methodist 7 Medan. The research results show that the Android-based learning media developed has obtained a very high level of validity, with an average percentage of 90.38% according to material experts, 87.77% according to media experts, then 90.90% according to lesson plan validators and results. Validation from experts on pre-test and post-test questions showed a percentage of 92.70% and 91.67%, respectively included in the "very valid" criteria. Positive responses were also found from teachers and students during small group and large group trials, with an average score of 96% from teachers, 94.4% from small groups, and 90.2% from large groups. This shows that this media is very practical to use in the learning process. Apart from that, the results of implementing this interactive learning media also show its effectiveness with the average percentage of responses to the effectiveness of learning media by students obtained at 92.23%. The classical learning completion level reached 96.67%, and the effectiveness questionnaire obtained an average percentage of 86.67%. The increase in students' mathematical understanding can be categorized as moderate improvement. Based on this research data, it can be concluded that the Android-based learning media that we have developed has met the criteria of being valid, practical and effective in improving students' mathematical understanding.
Hubungan Penggunaan Media Sosial dengan Motivasi Belajar Matematika Siswa Kelas VIII SMP Negeri 6 Percut Sei Tuan Agnes Eveline Samosir; Tiur Malasari Siregar
Jurnal Mahasiswa Kreatif Vol. 2 No. 2 (2024): Maret : Jurnal Mahasiswa Kreatif
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/jmk-widyakarya.v2i2.2930

Abstract

Low motivation to learn is often a serious challenge in one's academic development. Excessive use of social media can have both positive and negative impacts on learning motivation, depending on the usage policy. This study aims to analyze the magnitude of the relationship between the use of social media and the motivation to learn mathematics of class VIII students of SMP Negeri 6 Percut Sei Tuan. This study uses a quantitative approach with a correlational method. The sample consisted of 58 grade VIII students who were given video supplements related to learning materials at school through TikTok before formal learning was carried out. Based on the data analysis used using the Spearman correlation, the correlation coefficient value is + 0.744, it can be seen that the motivation to learn mathematics with the use of social media has a unidirectional relationship. This shows that if there is an increase in the value of using social media in learning, the value of math learning motivation will also increase linearly. By treating relevant learning videos through TikTok social media before learning takes place, educators are able to create a more interesting and intimate learning experience to increase student motivation in learning mathematics.
Peningkatan Keterampilan Berpikir Kritis Siswa Terhadap Pembelajaran Matematika Di SMP Swasta Jambi Medan Dengan Menggunakan Model Pembelajaran Inquiry Based Learning Tiur Malasari Siregar; Icha Elisyah Putri; Nur Indah Sari; Putri Yolanda Br Sembiring; Cindy Regina Ajeng Kartio Sinaga
Bersatu: Jurnal Pendidikan Bhinneka Tunggal Ika Vol 2 No 1 (2024): Januari : Jurnal Pendidikan Bhinneka Tunggal Ika
Publisher : LPPM Politeknik Pratama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51903/bersatu.v2i1.512

Abstract

Students' understanding of the subject matter has a great influence on achieving the learning objectives especially in mathematical learning because students' critical thinking skills can be enhanced by learning mathematics using an inquiry-based learning model. The reasons for the improvement of students' critical thinking skills towards learning mathematics and can be called mathematical problem solving abilities are taken from the learning objectives listed in Permendiknas No. 22 Year 2006, in which the importance of this variable of mathematic problem-solving ability to each student is listed. This research uses qualitative research methods with facts found in the field. The data collection technique used is to give a description test to a high school student. The research population is the entire students of the eighth grade of 26 private high school students Jambi Medan. As a result of the application of the learning inquiry model in the private high school in Jambi Medan, students can respond well so that students are more active in the learning process. This study shows that the use of the Inquiry Based Learning learning model has an impact on the mathematical learning outcomes of students in high school.
Pengembangan Media Pembelajaran Digital Melalui Pendekatan Realistic Mathematics Education (RME) Untuk Meningkatkan Kemampuan Pemecahan Masalah Matematis Siswa Di SMP Negeri 1 Percut Sei Tuan Elly Nafsiah; Tiur Malasari Siregar
JURNAL RISET RUMPUN ILMU PENDIDIKAN Vol. 2 No. 2 (2023): Oktober : Jurnal Riset Rumpun Ilmu Pendidikan
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurripen.v2i2.1516

Abstract

This research was conducted with the aim of producing digital learning media using the Smart Apps Creator through a Realistic Mathematics Education approach that is valid, effective, and able to improve students' mathematical problem solving abilities in the matter of a system of two-variable linear equations. This type of research is Research and Development (R&D) with the ADDIE model. From the research results, it was obtained that the media and material validity values were 93.6% and 93% with very valid categories. The practicality of the media through the results of the teacher's response questionnaire obtained a practicality value of 97.3% in the very practical category and the results of the student response questionnaire for the small group test and large group test obtained values of 90.9% and 91.4% in the very practical category. Then the value of effectiveness is seen through the mastery of classical learning and the results of the student response questionnaire obtained percentages of 87.5% and 94.05% with very effective categories. Improving problem solving abilities in students, the results obtained are that the level of students' problem solving abilities is at a percentage of 92% with a very high category, while based on the N-Gain test the average value obtained by students is 0.6473 which means there is an increase in problem solving abilities in students medium category. So based on the results obtained it can be concluded that the learning media developed in this study are valid, practical, effective, and able to improve students' mathematical problem solving abilities.
APLIKASI DAN PENERAPAN MATEMATIKA PADA ILMU EKONOMI FUNGSI PENAWARAN DAN PERMINTAAN DALAM KETAHANAN PANGAN Rindi Yani Hsb; Khairunnisa Roidah; Sri Sundari; Roberto C. Sitorus; Tiur Malasari Siregar
Trigonometri: Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 3 No. 1 (2024): Trigonometri: Jurnal Matematika dan Ilmu Pengetahuan Alam
Publisher : Cahaya Ilmu Bangsa Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.3483/trigonometri.v3i1.4179

Abstract

Ketahanan pangan merupakan kondisi di mana setiap orang memiliki akses terhadap pangan yang cukup, aman, dan bergizi. Penelitian ini bertujuan untuk menganalisis aplikasi dan penerapan matematika, khususnya fungsi penawaran dan permintaan, dalam konteks ketahanan pangan. Metode yang digunakan adalah analisis deskriptif eksploratif dengan mengumpulkan data melalui studi literatur. Fungsi permintaan pangan menggambarkan hubungan antara jumlah pangan yang diminta dengan faktor-faktor seperti harga, pendapatan, selera, dan jumlah populasi. Sementara fungsi penawaran pangan menggambarkan hubungan antara jumlah pangan yang diproduksi dengan faktor-faktor seperti harga, biaya produksi, teknologi pertanian, dan kondisi geografis. Keseimbangan pasar terjadi ketika jumlah pangan yang ditawarkan sama dengan jumlah pangan yang diminta. Perubahan pada faktor-faktor yang mempengaruhi penawaran dan permintaan akan berdampak pada ketahanan pangan. Pemerintah memiliki peran penting melalui kebijakan produksi pangan, harga dan pasar, distribusi, pendapatan dan perlindungan sosial, lingkungan dan perubahan iklim, serta koordinasi dan kemitraan. Hasil penelitian menunjukkan bahwa pemahaman terhadap fungsi permintaan dan penawaran pangan serta faktor-faktor yang mempengaruhinya dapat membantu dalam merancang strategi yang efektif untuk meningkatkan ketahanan pangan secara berkelanjutan.
The Influence of the Existence of Zoning Schools on Equality of Access to Education in Malang Regency Dipo Piswatama; Tiur Malasari Siregar
International Journal of Education, Language, Literature, Arts, Culture, and Social Humanities Vol. 3 No. 1 (2025): International Journal of Education, Language, Literature, Arts, Culture, and So
Publisher : FKIP, Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59024/ijellacush.v3i1.1141

Abstract

This research examines the influence of the existence of zoned schools on equal access to education in Malang district. The problems in this research are the pros and cons of school principals, teachers, parents and students regarding the school zoning system in Malang district. Based on research conducted by researchers, many school principals, teachers, parents and students do not agree with the existence of a school zoning system. Because students who excel and are competent do not get favorite schools to support their long-term careers. On the other hand, from the teacher side, teachers are very depressed and stressed because they find so few talented and high-quality students in the learning process at school. This research uses qualitative methods in the form of interviews with school principals, teachers, parents and students in the school environment. The research results prove that in the absence of an educational zoning system in Indonesia, you will find many students who excel and excel in elementary, middle and high school. Because with the student zoning system there tends to be no competition between students and other students. However, this has led to a decline in the quality of education in Indonesia through the school zoning system.
Analisis Kelayakan dan Dinamika Usaha Agen Kompos dalam Distribusi Pupuk Kompos terhadap Peluang Ekonomi dan Tantangan Lapangan Tiur Malasari Siregar; Anro Gumero Damanik; Annisa Fitri; Noventa Ginting; Nurhamidah Zega
PESHUM : Jurnal Pendidikan, Sosial dan Humaniora Vol. 4 No. 5: Agustus 2025
Publisher : CV. Ulil Albab Corp

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56799/peshum.v4i5.10120

Abstract

Kurangnya ketersediaan dan mahalnya pupuk kimia mendorong petani berganti ke pupuk organik, membuka peluang usaha distribusi pupuk kompos. Penelitian kualitatif ini bertujuan menganalisis kelayakan dan dinamika usaha agen kompos (pupuk organi) Bapak Ginting di Desa Cintarakyat. Permasalahan utama yakni kurangnya fokus karena status usaha sampingan, kurangnya waktu operasional, hambatan transportasi, persaingan dengan toko pertanian yang lebih besar, strategi pemasaran yang kurang kuat, masi tergantung pada musim tanam, dan kurangnya kesadaran petani terhadap pupuk organik. Walaupun demikian, narasumber menerapkan strategi adaptif seperti pemakaian pupuk kompos di lahan sendiri sebagai tanda kualitas, penjualan secara online untuk fleksibilitas waktu, mempertahankan kualitas produk, dan menargetkan pasar non-pertanian tradisional. Temuan ini diharapkan bisa memberikan masukan strategis untuk perkembangan sistem distribusi pupuk kompos yang efektif dan adaptif.
Adaptasi Dan Inovasi Digital UMKM Di Era-Pascapandemi: Tinjauan Literatur Atas Strategi, Tantangan, Dan Peluang Tiur Malasari Siregar; Theresia Damanik; Naila Ghinaya Damanik; Shaerleen Naviry Br Kembaren; Chindy Fransiska Hutagalung
PESHUM : Jurnal Pendidikan, Sosial dan Humaniora Vol. 4 No. 5: Agustus 2025
Publisher : CV. Ulil Albab Corp

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56799/peshum.v4i5.10175

Abstract

Pandemi COVID-19 memberikan tekanan besar terhadap Usaha Mikro, Kecil, dan Menengah (UMKM) di Indonesia, dengan penurunan omzet hingga 70% dan gangguan distribusi yang signifikan. Namun, krisis ini juga memicu percepatan transformasi digital di sektor UMKM sebagai strategi adaptif untuk bertahan dan berkembang. Artikel ini merupakan hasil kajian literatur sistematis terhadap berbagai studi yang membahas adaptasi dan inovasi digital UMKM pascapandemi. Hasil kajian menunjukkan bahwa pemanfaatan e-commerce, media sosial, pembayaran digital, dan digital marketing menjadi kunci dalam mempertahankan keberlangsungan bisnis. Meski demikian, transformasi digital tidak bebas hambatan, terutama terkait literasi digital, infrastruktur, serta sumber daya manusia. Dukungan dari pemerintah, pelatihan digital, dan kolaborasi lintas sektor dinilai krusial dalam membangun ekosistem digital yang inklusif dan berkelanjutan. Kesimpulan dari studi ini menegaskan bahwa digitalisasi bukan lagi pilihan, melainkan keharusan strategis bagi UMKM untuk mencapai daya saing yang berkelanjutan di era pascapandemi.
Co-Authors Agnes Eveline Samosir Annisa Fitri, Annisa Anro Gumero Damanik Aryani, Dwi Kartika Chindy Fransiska Hutagalung Cindy Regina Ajeng Kartio Sinaga Dayanara Hazrati Dinda Amelia Putri Dipo Piswatama Elly Nafsiah Estu Widya Putri Grasella br Sinaga Herbin Manurung Icha Elisyah Putri Karina Susmita Khairunnisa Roidah Muhammad Rafly Nadya Ayu Putri Naila Ghinaya Damanik Natasya Isabel Br. Siahaan Nisa Aulia Noventa Ginting Nur Indah Sari Nurhamidah Zega Putri Maulidina Fadhilah Putri Maulidina Fadhilla Putri Yolanda Br Sembiring Rindi Yani Hsb Roberto C. Sitorus Shaerleen Naviry Br Kembaren Sundari, Sri Theresia Damanik Utami, Ovi Fadilla