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All Journal EKSAKTA : Jurnal Penelitian dan Pembelajaran MIPA JURNAL MathEdu (Mathematic Education Journal) Nabla Dewantara : Jurnal Pendidikan Matematika Jurnal Riset sosial humaniora, dan Pendidikan (Soshumdik) Jurnal Cermatika Jurnal Cermatika Jurnal Pengabdian Indonesia
Haritsah Hammamah Harahap
Pendidikan Matematika Univ. Graha Nusantara (UGN) Padangsidimpuan
Religion Agriculture, Biological Sciences & Forestry Automotive Engineering Education Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Social Sciences

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Journal : Jurnal Cermatika

 1 
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

Abstract

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

Abstract

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

Abstract

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

Abstract

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

Abstract

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

Abstract

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.
Co-Authors Adek Nilasari Harahap Agus Makmur Agus Makmur Panjaitan Andi Saputra Mandopa Andi Saputra Mandopa Andri Hansaso Nasution Bayo Harahap Bynoto Hutabarat Desi Fitrah Nainggolan Desmalia Purba Eka Retno Wulandari Erwin Erwin Fitri Jelita Irsan Rangkuti Joharis Lubis Makrup Hasbi Makrup Hasbi Masyitha , Masyitha Mohd. Arifin Muhammad Fahmi Lubis Muhammad Fahmi Lubis Nova Christina Dewi Nur Atika Lubis Nur Atika Lubis Nurhaida Nurhaida, . Puspa Riani Nasution Puspa Riani Nasution Putri Wahyuni Rahima Safitra Pane Rhamayanti, Yuni Rika Anggita Rumona Habibah Lubis Rumondang Bulan Harahap Susi Sulastri Lubis Yuni Rhamayanti Zainur Aini Nasution