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THE TEACHERS' EXPERIENCE BACKGROUND AND THEIR PROFESIONALISM Yulyanti Harisman; Yaya Sukjaya Kusumah; Kusnandi Kusnandi; Muchamad Subali Noto
Jurnal Infinity Vol 8 No 2 (2019): Volume 8 Number 2, Infinity
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v8i2.p129-142

Based on literature review Three categories of teachers are: good, very good, and excellent which are viewed from aspects of beliefs, attitude, depth of pedagogical and didactic aspects, and teacher reflection in the learning process has been obtained in previous studies. Various external aspects are considered to affect teacher professionalism in learning about mathematical problem solving. These aspects need to be studied to maximize the teacher professionalism. This study will examine these external aspects, ranging from teaching experience, educational background, and experience in participating in training to improve teacher competencies. This type of qualitative research with survey methods was chosen as a research method. Three teachers from three junior high schools with different clusters were selected as research subjects. Each teacher is given short questions related to this. The results obtained are the experiences of the trainings that teachers follow in increasing their competence and teacher's educational background have more significant influence on teacher professionalism compared to the experience or length of teacher teaching.

PENINGKATAN KEMAMPUAN BERPIKIR KREATIF MATEMATIS SISWA MELALUI MODEL PROJECT-BASED LEARNING DENGAN PENDEKATAN STEM Indri Octaviyani; Yaya Sukjaya Kusumah; Aan Hasanah
Journal on Mathematics Education Research (J-MER) Vol 1, No 1 (2020)
Publisher : Departemen Pendidikan Matematika, FPMIPA, UPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/j-mer.v1i1.24569

Project-Based Learning (PjBL) merupakan model pembelajaran yang mengajarkan konsep dalam kurikulum melalui sebuah proyek yang berpusat pada peserta didik agar dapat bekerja secara otonom, kolaboratif dan melalui tugas-tugas. STEM (Science, Technology, Engineering dan Mathematics) merupakan pembelajaran yang mengintegrasikan konsep-konsep sains, teknologi, engineering dan matematika. Tujuan dari studi ini adalah untuk mengetahui peningkatan kemampuan berpikir kreatif matematis siswa melalui model Project-based Learning dengan pendekatan STEM. Metode penelitian yang digunakan adalah kuasi eksperimen dengan one-group pretest and post-test. Instrumen yang digunakan adalah tes kemampuan berpikir kreatif matematis dalam bentuk soal uraian, dan angket respons siswa untuk mengetahui respons siswa terhadap Model Project-based Learning dengan pendekatan STEM. Populasi dalam penelitian ini adalah Siswa SMP Kelas VII dan sampelnya adalah 31 siswa kelas VII SMP Negeri 26 Badung. Data berasal dari hasil pretes dan postes kemampuan berpikir kreatif matematis siswa dan respons terhadap model Project-based Learning dengan pendekatan STEM. Berdasarkan hasil analisis data, dapat disimpulkan bahwa peningkatan kemampuan berpikir kreatif matematis siswa adalah 0,76 (kategori tinggi). Hampir semua siswa menunjukkan respons yang cukup baik terhadap model Project-based Learning dengan pendekatan STEM.

DEVELOPMENT OF COLLABORATIVE PROBLEM SOLVING-BASED LEARNING TOOLS TO IMPROVE MATHEMATICAL ADAPTIVE REASONING SKILLS Nunu Nurhayati; Yaya Sukjaya Kusumah; Dadang Juandi
AKSIOMA: Jurnal Program Studi Pendidikan Matematika Vol 13, No 3 (2024)
Publisher : UNIVERSITAS MUHAMMADIYAH METRO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/ajpm.v13i3.10728

Students' ability to solve mathematical adaptive reasoning problems is still relatively low. As a result, students have difficulty in solving mathematical adaptive reasoning problems. The cause of the low mathematical adaptive reasoning ability of students is the lack of learning tools that facilitate mathematical adaptive reasoning ability. Therefore, a Collaborative Problem Solving-based tool was developed that can stimulate an active learning process, motivate students and improve mathematical adaptive reasoning skills. This research is a development research using the Plomp development model. The products developed are lesson plans and worksheets based on Collaborative Problem Solving for class VIII junior high school statistics material. The purpose of this research is to produce Collaborative Problem Solving-based tools that are valid, practical, and effective on the mathematical adaptive reasoning skills of grade VIII junior high school students. The results showed that the learning tools in the form of lesson plans and LKS based on Collaborative Problem Solving for students in grade VIII junior high school were valid, practical, and effective. The results of the validation of the learning tools developed are very valid, adjusting 5 indicators of mathematical adaptive reasoning skills seen from the aspects of making conjectures, providing reasons for the answers given, drawing conclusions from a statement, checking the validity of an argument, and finding patterns from a mathematical problem. The results of the practicality of learning devices are very practical in terms of ease of use, suitability of time allocation, attractiveness and usefulness. Furthermore, it is said to be effective because it has an impact on students' mathematical adaptive reasoning ability of 82.70% with a very good category.

UTILIZATION OF DIGITAL MEDIA IN MATHEMATICS LEARNING IN PUBLIC ELEMENTARY SCHOOLS IN BANDUNG zatman, Zatman Payung; Yaya Sukjaya Kusumah; Endang Cahya Mulyaning; Bambang Avip
Jurnal Tunas Pendidikan Vol. 8 No. 1 (2025): JURNAL TUNAS PENDIDIKAN
Publisher : LPPM Universitas Muhammadiyah Muara Bungo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52060/pgsd.v8i1.3432

This study aims to analyze the use of digital media in mathematics learning in public elementary schools in the city of Bandung. This study uses a descriptive quantitative research design. The study population consisted of teachers and students from public elementary schools in the city of Bandung, with a randomly selected sample from 20 public elementary schools and each school was taken with 5 teachers and 6 students. The instruments used were observations, questionnaires, and documentation to collect data, which included the perception of teachers and students on the use of digital media in mathematics learning. The types of data taken include respondent scores from questionnaires, observation results and documentation which are then analyzed using descriptive statistics to obtain the average score and interpretation. The results showed that teachers actively utilize various digital media in mathematics learning, such as learning videos and educational applications, which contributed to increased student interest and engagement. In addition, students responded positively to the use of digital media, with 84% stating that learning became more engaging and enjoyable. The research also identified major obstacles, such as unstable internet access and device limitations for students. The research concludes that the use of digital media in mathematics learning in primary school can increase students' interest and engagement, as well as help in understanding abstract concepts.

EXPLORING STUDENT PERCEPTIONS: VISUALIZING ABSTRACT CONCEPTS IN DESCRIPTIVE GEOMETRY USING GEOGEBRA: Jawa Barat, Indonesia Wijaksana, Aris Hadiyan; Yaya Sukjaya Kusumah; Turmudi
Jurnal Math-UMB.EDU Vol. 13 No. 2 (2026): MARCH
Publisher : Universitas Muhammadiyah Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36085/math-umb.edu.v13i2.9772

Descriptive Geometry is a fundamental course that demands high-level spatial visualization skills, where students often face significant cognitive challenges in projecting three-dimensional (3D) objects onto two-dimensional (2D) planes using conventional methods. This study aims to deeply explore student perceptions regarding the use of the dynamic geometry software GeoGebra as a medium for visualizing abstract concepts in this course. Using a qualitative case study approach, this research involved 13 students from the mathematics education program at Universitas Negeri Jakarta. Data were collected through semi-structured interviews and analyzed using thematic analysis. The findings indicate that students perceive GeoGebra as a transformative pedagogical tool. Four main themes were identified: (1) GeoGebra serves as a conceptual bridge that translates abstract concepts into concrete and dynamic visual representations; (2) GeoGebra's interactive environment is considered far superior to the static paper-and-pencil method, offering accuracy, efficiency, and freedom to experiment; (3) The use of GeoGebra shifts the student's role from a passive recipient to an active learner engaged in independent exploration; and (4) Despite an initial learning curve, the challenge of mastering the software fosters the development of student agency and learning autonomy. This study concludes that GeoGebra effectively reduces the cognitive load associated with spatial visualization and enhances student engagement and conceptual understanding. The implications of these findings underscore the importance of planned technological integration into advanced geometry curricula to facilitate more meaningful learning. Keywords: Descriptive Geometry; GeoGebra; Spatial Visualization; Student Perceptions; Dynamic Geometry Software

Mathematics Teachers' Competency Development: A Qualitative Study On The Transition From PMM To Ruang GTK Fadhil Zil Ikram; Yaya Sukjaya Kusumah; Mei Radia Putri
Information Technology Education Journal Vol. 4, No. 2, May (2025)
Publisher : Jurusan Teknik Informatika dan Komputer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59562/intec.v4i2.8168

The change from PMM (Merdeka Mengajar Platform) to Ruang GTK requires further study investigating how the Ruang GTK is utilised compared to PMM. The present qualitative study aims to describe the experiences of 15 mathematics teachers (13 teachers and two vice principals) in using Ruang GTK compared to their previous experiences using PMM. The study spanned six weeks and was conducted online and offline. The data were collected through interviews and audiovisual materials, with interview guidelines developed based on an adaptation of the Technology Acceptance Model (TAM3) constructs: perceived usefulness, perceived ease of use, job relevance, voluntariness, and use. The data underwent a three-stage analysis process, encompassing data condensation, data presentation, verification, and conclusion drawing. The results showed that more and more participants rarely use Ruang GTK due to motivational factors, changes in the curriculum, and the need to attend many offline trainings. The discrepancy in the advantages accruing from utilizing Ruang GTK compared to PMM can be attributed to the substantial diminution in teacher workload. Ruang GTK is easier to operate, especially because it eliminates features that confuse teachers. Lastly, many of the participants now access the Ruang GTK only when there is an obligation or demand from their superiors, and only a few

UTILIZATION OF DIGITAL MEDIA IN MATHEMATICS LEARNING IN PUBLIC ELEMENTARY SCHOOLS IN BANDUNG zatman, Zatman Payung; Yaya Sukjaya Kusumah; Endang Cahya Mulyaning; Bambang Avip
Jurnal Tunas Pendidikan Vol. 8 No. 1 (2025): JURNAL TUNAS PENDIDIKAN
Publisher : LPPM Universitas Muhammadiyah Muara Bungo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52060/pgsd.v8i1.3432

This study aims to analyze the use of digital media in mathematics learning in public elementary schools in the city of Bandung. This study uses a descriptive quantitative research design. The study population consisted of teachers and students from public elementary schools in the city of Bandung, with a randomly selected sample from 20 public elementary schools and each school was taken with 5 teachers and 6 students. The instruments used were observations, questionnaires, and documentation to collect data, which included the perception of teachers and students on the use of digital media in mathematics learning. The types of data taken include respondent scores from questionnaires, observation results and documentation which are then analyzed using descriptive statistics to obtain the average score and interpretation. The results showed that teachers actively utilize various digital media in mathematics learning, such as learning videos and educational applications, which contributed to increased student interest and engagement. In addition, students responded positively to the use of digital media, with 84% stating that learning became more engaging and enjoyable. The research also identified major obstacles, such as unstable internet access and device limitations for students. The research concludes that the use of digital media in mathematics learning in primary school can increase students' interest and engagement, as well as help in understanding abstract concepts.

Pendampingan Guru Sekolah Menengah dalam Penerapan ICT untuk Asesmen Pembelajaran Jarnawi Afgani Dahlan; Yaya Sukjaya Kusumah; Erma Monariska; Ariyanti Jalal; Churun Lu'lu'il Maknun; Ernawati; Fadhil Zil Ikram; M. Azhari Panjaitan; Pieter Z. Tupamahu; R. H. Yanti Silitonga
Sipakaraya : Jurnal Pengabdian Masyarakat Vol. 4 No. 1 (2025): Sipakaraya : Jurnal Pengabdian Masyarakat
Publisher : Universitas Sulawesi Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31605/sipakaraya.v4i1.5428

Kegiatan pengabdian kepada masyarakat ini bertujuan untuk mengatasi permasalahan rendahnya pemanfaatan teknologi informasi dan komunikasi (ICT), khususnya dalam kegiatan evaluasi dan asesmen pembelajaran oleh guru di sekolah mitra. Permasalahan ini dapat ditinjau dari dua aspek utama, yaitu keterbatasan pengetahuan dan keterampilan guru dalam menggunakan platform digital untuk evaluasi dan asesmen, serta belum dikenalnya potensi kecerdasan buatan (AI) dalam menunjang penilaian pembelajaran yang efektif dan efisien. Melalui kegiatan pengabdian berupa pendampingan atau pelatihan ini, diharapkan para guru di sekolah mitra tidak hanya memperoleh pemahaman konseptual tentang pentingnya integrasi teknologi dalam evaluasi dan asesmen pembelajaran, tetapi juga memiliki keterampilan praktis untuk menerapkannya secara langsung dalam konteks kelas mereka masing-masing. Kegiatan pengabdian dilaksanakan secara hybrid yang berpusat di SMK TIK Al-Islam Purwakarta. Kegiatan dilaksanakan pada hari Sabtu, 23 Agustus 2025 dengan 27 guru yang mengikuti kegiatan. Adapun guru-guru yang mengikuti kegiatan ini berasal dari tiga sekolah yaitu SMA Al Jundiyah, SMA Dzakiyun 2, dan SMK TIK Al Islam. Hasil pelaksanaan serta evaluasi terhadap kegiatan pengabdian masyarakat yang telah dilaksanakan menunjukkan bahwa indikator keberhasilan kegiatan pengabdian, yaitu materi, narasumber, pelaksanaan kegiata, serta dampak manfaat, sudah terpenuhi sehingga kegiatan pendampingan atau pelatihan terkait pemanfaatan ICT dalam asesmen pembelajaran dapat dikatakan sukses dan berhasil. Kegiatan pendampingan atau pelatihan berhasil dalam menambah wawasan dan pengetahuan serta keterampilan terkait ICT dalam Pendidikan, utamanya mengenai pemanfaatannya dalam asesmen pembelajaran. Selain itu, para responden juga memberikan komentar yang positif terhadap pelaksanaan kegiatan dan berharap kegiatannya dapat dilaksanakan secara berkala.

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