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Upaya Meningkatkan Hasil Belajar Dengan Model Pembelajaran Demontrasi Berbantuan Lembarkerja Siswa (LKS) Di Kelas VII SMP Negeri 9 Padangsidimpuan Tahun Ajaran 2021/2022 Makrup Hasbi; Adek Nilasari Harahap; Haritsah Hammamah Harahap
Jurnal Cermatika Vol. 3 No. 2 (2023): JURNAL CERMATIKA VOLUME 3 NOMOR 2 BULAN OKTOBER TAHUN 2023
Publisher : Program Studi Matematika Universitas Graha Nusantara Padangsidimpuan

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This research method used is classroom action research using two cycles carried out in the first semester with Set material.The population in this study were VII grade students of SMP Negeri 9 Padangsidempuan as many as 30 people. The class that was used as the sample was class VII-2 of SMP Negeri 9 Padangsidimpuan with 30 students. As the sample is class VII-2 SMP Negeri 9 Padangsidimpuan which will use the demonstration method aided by the set material. will use the demonstration method assisted by student worksheets (lks) in learning. learning. The ability of student learning outcomes in learning mathematics inclass VII-2 SMP Negeri 9 Padangsidempuan on set material increased by 62.4% with the category "sufficient" in cycle I, then increased to 91% with the category "good" in cycle II. with the category "good" in cycle II. Increased student learning activities on set material in the cycle with a percentage result of 75.08% and in cycle II the results increased to 87.27%. For teacher ability in cycle I obtained an average activity score of 3.40 (good) and in cycle IIobtained an average activity score of 3.68 (very good).

Meningkatkan Hasil Belajar Matematika Dengan Penerapan Model Pembelajaran Inquiri Learning Dengan Bantuan LKS Di Ponpes Al-Yusufiah Nur Atika Lubis; Haritsah Hammamah Harahap; Andi Saputra Mandopa
Jurnal Cermatika Vol. 4 No. 2 (2024): VOLUME 4 NOMOR 2 BULAN OKTOBER TAHUN 2024
Publisher : Program Studi Matematika Universitas Graha Nusantara Padangsidimpuan

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This research aims to determine the direct influence of the Inquiry Learning learning model to improve Mathematics learning outcomes for class VII Al-Yusufiah Huta Holbung Islamic Boarding School. The research method used is classroom action research using two cycles carried out in the second semester with material about lines and angles. The population in this study was 29 class VII students at the Al-Yusufiah Huta Holbung Islamic Boarding School. The class used as a sample is class VII-I of the Al-Yusufiah Huta Holbung Islamic Boarding School which will use the Inquiry Learning method assisted by student worksheets (LKS) in learning. The ability of students' learning outcomes in mathematics learning in class VII-I of the Al-Yusufiah Huta Holbung Islamic Boarding School on lines and angles in the first cycle increased by 55% with the "sufficient" category, then in the second cycle it increased to 86.21% with the "good" category. ”. The increase in teacher and student observation results on line and angle material in cycle I averaged 71.5% (adequate) observation results. the results of the second cycle of observations were 77.5% (Good).

Analisis Kemampuan Pemahaman Konsep Matematika Kelas VII SMP Negeri 7 Padangsidimpuan Melalui Pemanfaatan Media Audio Visual Pada Materi Bilangan Bulat Nurhaida; Puspa Riani Nasution; Haritsah Hammamah Harahap
Jurnal Cermatika Vol. 4 No. 2 (2024): VOLUME 4 NOMOR 2 BULAN OKTOBER TAHUN 2024
Publisher : Program Studi Matematika Universitas Graha Nusantara Padangsidimpuan

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This study aims to determine students' conceptual understanding after using audio-visual media on the topic of integer operations, using five indicators of mathematical conceptual understanding in Class VII 3 at SMP N 7 Padangsidimpuan. This research is qualitative in nature. The data in this study were obtained from direct observations, interviews with teachers, and interviews with students. After the data were collected, they were analyzed using three stages: data reduction, data presentation, and verification or conclusion drawing. Data validity was checked using data source triangulation. The subjects of this study were two Class VII teachers and 26 students from Class VII 3. The results of this study show that after learning using audio-visual media, some students experienced an improvement in their conceptual understanding. This improvement was observed across all indicators of conceptual understanding. Most students demonstrated a good understanding of integer operations, although a small number of students still struggled with this concept.

Pengaruh Strategi Pembelajaran Reading, Questioning, And Aswering (RQA)-Terhadap Hasil Belajar Siswa Pada Pokok Bahasan Sistem Persamaan Linear Di Kelas X SMK Negeri 1 Angkola Timur Muhammad Fahmi Lubis; Susi Sulastri Lubis; Haritsah Hammamah Harahap
JURNAL CERMATIKA Vol. 3 No. 2 (2023): Jurnal Cermatika Vol 3 No 2 Oktober 2023
Publisher : Program Studi Matematika Universitas Graha Nusantara Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64168/cermatika.v3i2.1342

This research was conducted at SMK Negeri 1 East Angkola with the aim of 1) To find the average student learning outcomes using RQE learning on the subject of systems of linear equations in two variables at SMK Negeri 1 East Angkola 2) To find out the average results of those who did not use RQE learning strategy on the subject of systems of linear equations in East Angkola 3) To find out whether there is an influence of the RQE learning strategy on mathematics learning outcomes in class X at SMK Negeri 1 East Angkola. This research uses the Quasi Experiment method. Data collection was carried out using the final test technique (post test). The samples in this study were class X RPL 1 and class X RPL 2 where class RPL 1 was used as the experimental class and class RPL 2 was used as the control class. This research data was analyzed using SPSS Anova statistical analysis. The research results show that t count > t table, or Ho is rejected (8.646 > 2.034). So, it can be concluded that there is an influence of the use of the Reading Questioning and Answering learning strategy on the learning outcomes in mathematics for class

Upaya Meningkatkan Hasil Belajar Dengan Model Pembelajaran Demontrasi Berbantuan Lembarkerja Siswa (LKS) Di Kelas VII SMP Negeri 9 Padangsidimpuan Tahun Ajaran 2021/2022 Makrup Hasbi; Adek Nilasari Harahap; Haritsah Hammamah Harahap
JURNAL CERMATIKA Vol. 3 No. 2 (2023): Jurnal Cermatika Vol 3 No 2 Oktober 2023
Publisher : Program Studi Matematika Universitas Graha Nusantara Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64168/cermatika.v3i2.1347

This research method used is classroom action research using two cycles carried out in the first semester with Set material.The population in this study were VII grade students of SMP Negeri 9 Padangsidempuan as many as 30 people. The class that was used as the sample was class VII-2 of SMP Negeri 9 Padangsidimpuan with 30 students. As the sample is class VII-2 SMP Negeri 9 Padangsidimpuan which will use the demonstration method aided by the set material. will use the demonstration method assisted by student worksheets (lks) in learning. learning. The ability of student learning outcomes in learning mathematics inclass VII-2 SMP Negeri 9 Padangsidempuan on set material increased by 62.4% with the category "sufficient" in cycle I, then increased to 91% with the category "good" in cycle II. with the category "good" in cycle II. Increased student learning activities on set material in the cycle with a percentage result of 75.08% and in cycle II the results increased to 87.27%. For teacher ability in cycle I obtained an average activity score of 3.40 (good) and in cycle IIobtained an average activity score of 3.68 (very good).

Meningkatkan Hasil Belajar Matematika Dengan Penerapan Model Pembelajaran Inquiri Learning Dengan Bantuan LKS Di Ponpes Al-Yusufiah Nur Atika Lubis; Haritsah Hammamah Harahap; Andi Saputra Mandopa
JURNAL CERMATIKA Vol. 4 No. 2 (2024): Jurnal Cermatika Vol 4 No 2 Oktober 2024
Publisher : Program Studi Matematika Universitas Graha Nusantara Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64168/cermatika.v4i2.1497

This research aims to determine the direct influence of the Inquiry Learning learning model to improve Mathematics learning outcomes for class VII Al-Yusufiah Huta Holbung Islamic Boarding School. The research method used is classroom action research using two cycles carried out in the second semester with material about lines and angles. The population in this study was 29 class VII students at the Al-Yusufiah Huta Holbung Islamic Boarding School. The class used as a sample is class VII-I of the Al-Yusufiah Huta Holbung Islamic Boarding School which will use the Inquiry Learning method assisted by student worksheets (LKS) in learning. The ability of students' learning outcomes in mathematics learning in class VII-I of the Al-Yusufiah Huta Holbung Islamic Boarding School on lines and angles in the first cycle increased by 55% with the "sufficient" category, then in the second cycle it increased to 86.21% with the "good" category. ”. The increase in teacher and student observation results on line and angle material in cycle I averaged 71.5% (adequate) observation results. the results of the second cycle of observations were 77.5% (Good).

Analisis Kemampuan Pemahaman Konsep Matematika Kelas VII SMP Negeri 7 Padangsidimpuan Melalui Pemanfaatan Media Audio Visual Pada Materi Bilangan Bulat Nurhaida; Puspa Riani Nasution; Haritsah Hammamah Harahap
JURNAL CERMATIKA Vol. 4 No. 2 (2024): Jurnal Cermatika Vol 4 No 2 Oktober 2024
Publisher : Program Studi Matematika Universitas Graha Nusantara Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64168/cermatika.v4i2.1499

This study aims to determine students' conceptual understanding after using audio-visual media on the topic of integer operations, using five indicators of mathematical conceptual understanding in Class VII 3 at SMP N 7 Padangsidimpuan. This research is qualitative in nature. The data in this study were obtained from direct observations, interviews with teachers, and interviews with students. After the data were collected, they were analyzed using three stages: data reduction, data presentation, and verification or conclusion drawing. Data validity was checked using data source triangulation. The subjects of this study were two Class VII teachers and 26 students from Class VII 3. The results of this study show that after learning using audio-visual media, some students experienced an improvement in their conceptual understanding. This improvement was observed across all indicators of conceptual understanding. Most students demonstrated a good understanding of integer operations, although a small number of students still struggled with this concept.

Penerapan Metode Drill Untuk Meningkatkan Kemampuan Berpikir Kritis Siswa Kelas VIII Materi Peluang Rumondang Bulan Harahap; Adek Nilasari Harahap; Haritsah Hammamah Harahap
JURNAL CERMATIKA Vol. 5 No. 1 (2025): Jurnal Cermatika Vol 5 No 1 April 2025
Publisher : Program Studi Matematika Universitas Graha Nusantara Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64168/cermatika.v5i1.1585

This class action research aims to determine the effectiveness of the application of the drill method in improving the critical thinking skills of grade VIII students in learning mathematics of chance material. The results showed a significant increase in students' critical thinking skills after the systematic and gradual application of the drill method. The average pre-test score in Cycle I increased from 52.00 to 71.33 with an N-Gain of 0.40 (medium category), and in Cycle II it increased further to 84.67 with an N-Gain of 0.47 (medium category). In addition, the percentage of student learning completeness increased from 53.33% in Cycle I to 86.67% in Cycle II. This improvement was also supported by students' increased active participation, seen from their courage to answer questions, ask questions, and discuss in small groups. Direct feedback from the teacher after practicing the problems also played a role in improving students' thinking processes and supporting the development of metacognition. The drill method proved effective in overcoming students' difficulties in summarizing opportunities, comparing probabilities, and constructing logical arguments based on mathematical data. Although the improvement in critical thinking skills is still moderate, this study shows that the drill method has great potential to be developed in learning mathematics, especially materials that require analysis and reasoning.

Penerapan Gaya Belajar KOLB Untuk Meningkatkan Pemecahan Masalah Matematika Siswa Di Kelas X SMK Negeri 1 Siabu Bynoto Hutabarat; Haritsah Hammamah Harahap; Andi Saputra Mandopa
JURNAL CERMATIKA Vol. 5 No. 2 (2025): Jurnal Cermatika Vol 5 No 2 Oktober 2025
Publisher : Program Studi Matematika Universitas Graha Nusantara Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64168/cermatika.v5i2.1668

This study aims to improve student’s mathematical problem solving skills through the implemantion of Kolb’s learning style in class X TBSM @ at SMK Negeri 1 Siabu, focusing on the topic of sequences and series. The research method used is Classroom Action Research (CAR), conducted in two cycles, each consisting of planning, action, observation, and reflection. The research subjects were 20 students from class X. Data were collected through problem-solving tests, student and teacher activity observations, and analyzed using descriptive quantitative methods. The results showed an improvement in students’ problem-solving abilities from 55% (categorized as low) in the first cycle to 85% (categorized as good) in the second cycle. Observations also indicated increased student and teacher engagement and improvement in instructional quality. The implementation of Kolb’s learning style proved effective in helping students grasp mathematical concepts and problem-solving strategies. This research recommends the use of Kolb’s learning model as an alternative teaching approach to enhance students' critical thinking and learning outcomes in mathematics.

IMPLEMENTASI KULIAH KERJA LAPANGAN MAHASISWA UGN PADANGSIDIMPUAN DALAM PENGEMBANGAN KOMPETENSI DAN PENGABDIAN DI DESA SIAMPORIK LOMBANG Rhamayanti, Yuni; Haritsah Hammamah Harahap; Andri Hansaso Nasution; Bayo Harahap; Putri Wahyuni; Rumona Habibah Lubis; Desi Fitrah Nainggolan
Jurnal Pengabdian Indonesia (JPI) Vol. 1 No. 2 (2025): Vol. 1 No. 2 Edisi Juli 2025
Publisher : PT. Jurnal Center Indonesia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62567/jpi.v1i2.1096

Perguruan tinggi memiliki peran strategis dalam mendukung pembangunan nasional melalui pelaksanaan Tri Dharma Perguruan Tinggi: pendidikan dan pengajaran, penelitian, serta pengabdian kepada masyarakat. Salah satu bentuk nyata dari pengabdian masyarakat adalah kegiatan Kuliah Kerja Lapangan (KKL) yang wajib diikuti oleh mahasiswa sebagai bagian dari proses pembelajaran kontekstual di luar kelas. Universitas Graha Nusantara (UGN) Padangsidimpuan berkomitmen mengoptimalkan KKL sebagai sarana pengembangan kompetensi akademik dan sosial mahasiswa melalui keterlibatan langsung di tengah masyarakat. Pada tahun 2024, kegiatan KKL dilaksanakan di Desa Siamporik Lombang, Kecamatan Angkola Selatan, Kabupaten Tapanuli Selatan, Provinsi Sumatera Utara. Dengan pendekatan Participatory Action Research (PAR) yang dikombinasikan dengan prinsip service learning, mahasiswa dari berbagai program studi melaksanakan program lintas bidang, meliputi pendidikan, pertanian, ekonomi, sosial-politik, dan teknik. Kegiatan-kegiatan ini mencakup peningkatan literasi anak, inovasi pertanian berbasis sumber daya lokal, pelatihan ekonomi kreatif, pendataan kependudukan, serta perbaikan infrastruktur dan pengenalan teknologi edukatif. Hasil pelaksanaan menunjukkan bahwa pendekatan partisipatif efektif mendorong keterlibatan aktif masyarakat dan penguatan kapasitas mahasiswa sebagai agen perubahan. Mahasiswa tidak hanya menerapkan ilmu yang diperoleh di bangku kuliah, tetapi juga mengembangkan empati, kepemimpinan, serta kemampuan berpikir kritis dan kolaboratif. Pelaksanaan KKL ini menegaskan bahwa perguruan tinggi mampu berkontribusi secara konkret terhadap pembangunan masyarakat melalui model pengabdian yang kolaboratif dan transformatif. Harapannya, model ini dapat direplikasi di wilayah lain untuk mendorong masyarakat yang mandiri dan berdaya.

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