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PENGARUH PENERAPAN E-EVALUATION DALAM PEMBELAJARAN TERHADAP KINERJA GURU MATEMATIKA SMA KOTA BENGKULU Khathibul Umam Zaid Nugroho; Yulia Darmi; Anisya Soneta
Jurnal Pendidikan Matematika Raflesia Vol 2, No 2 (2017)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/jpmr.v2i2.3965

Pemahaman Konsep Matematika melalui Media Youtube dengan Pendekatan Etnomatematika Khahibul Umam Zaid Nugroho; Wahyu Widada; Zamzaili Zamzaili; Dewi Herawaty
Jurnal Pendidikan Matematika Raflesia Vol 4, No 1 (2019)
Publisher : Universitas Bengkulu

Modifikasi Software Lisrel Dengan Membuat Teknik Analisis Konstruksi Validitas Instrumen Tes Noprianto Wahyudi; Khathibul Umam Zaid Nugroho; Dewi Herawaty
Jurnal Pendidikan Matematika Raflesia Vol 5, No 1 (2020)
Publisher : Universitas Bengkulu

Students' cognitive processes in understanding the application of derivatives Wahyu Widada; Dewi Herawaty; Wayan Gede; Khatibul Umam Zaid Nugroho; Abdurrobbil Falaq Dwi Anggoro; Shadaqnas Dewarif Tri Anggoro
Annals of Mathematical Modeling Vol 2, No 1 (2020)
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/amm.v2i1.69

Derivatives are one of the objects of calculus that is difficult for students to learn. The purpose of this study was to describe the cognitive processes of students in understanding the application of derivatives. This is a qualitative research involving one subject with the initials L. The main instrument of this research is the researcher who is guided by an assignment sheet and an interview guide. Data collection was carried out through task-based interviews. To get complete and accurate data recorded through audiovisual. Data were analyzed descriptively through genetic decomposition based on APOS (action-process-object-schema) theory. The results of this study are that L can coordinate the process-object of all the properties of a given function, with adjacent or overlapping intervals in all h domains so that a mature scheme of function graph sketches is formed. So that an accurate function graph sketch is obtained. The conclusion is that L's cognitive process of applying derivatives is at a high level. It's a trance level.

The understanding abilities of real number concepts for primary school student Khathibul Umam Zaid Nugroho; Saleh Haji
Annals of Mathematical Modeling Vol 2, No 2 (2020)
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/amm.v2i2.86

The purpose of this study was to determine the characteristics of relational elementary students in understanding the concept of real numbers. This research is an exploration of the research subject. The subjects of this study were students of MIN 2 Bengkulu Selatan. There is one realistic student in this research. The researcher is the main instrument in this research which is supported by an interview guide and an assignment sheet on the concept of real numbers. The data were analyzed qualitatively. The results of this study are that students with relational abilities can combine separate pieces of information to produce the completion of a task. Therefore it is suggested to teachers and researchers of mathematics education to explore students' mathematical cognitive processes before determining the learning strategies to be carried out.

The Weaknesses of Euclidean Geometry: A Step of Needs Analysis of Non-Euclidean Geometry Learning through an Ethnomathematics Approach Khathibul Umam Zaid Nugroho; Y. L. Sukestiyarno; Adi Nurcahyo
Edumatika : Jurnal Riset Pendidikan Matematika Vol. 4 No. 2 (2021): November 2021, Edumatika : Jurnal Riset Pendidikan Matematika
Publisher : Fakultas Tarbiyah dan Ilmu Keguruan IAIN Kerinci

Non-Euclidean Geometry is a complex subject for students. It is necessary to analyze the weaknesses of Euclidean geometry to provide a basis for thinking about the need for learning non-Euclidean geometry. The starting point of learning must be close to students' local minds and culture. The purpose of this study is to describe the weaknesses of Euclidean geometry as a step in analyzing the needs of non-Euclidean geometry learning through an ethnomathematics approach. This research uses qualitative descriptive methods. The subjects of this study were students of Mathematics Education at State Islamic University (UIN) Fatmawati Soekarno Bengkulu, Indonesia. The researcher acts as a lecturer and the main instrument in this research. Researchers used a spatial ability test instrument to explore qualitative data. The data were analyzed qualitatively descriptively. The result of this research is that there are two weaknesses of Euclidean geometry, namely Euclid’s attempt to define all elements in geometry, including points, lines, and planes. Euclid defined a point as one that has no part. He defined a line as length without width. The words "section", "length", and "width" are not found in Euclidean Geometry. In addition, almost every part of Euclid’s proof of the theorem uses geometric drawings, but in practice, these drawings are misleading. Local culture and ethnomathematics approach design teaching materials and student learning trajectories in studying Non-Euclid Geometry.

Students' cognitive processes in understanding the application of derivatives Wahyu Widada; Dewi Herawaty; Wayan Gede; Khathibul Umam Zaid Nugroho; Abdurrobbil Falaq Dwi Anggoro; Shadaqnas Dewarif Tri Anggoro
Annals of Mathematical Modeling Vol. 2 No. 1 (2022)
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/amm.v2i1.16

Derivatives are one of the objects of calculus that is difficult for students to learn. The purpose of this study was to describe the cognitive processes of students in understanding the application of derivatives. This is a qualitative research involving one subject with the initials L. The main instrument of this research is the researcher who is guided by an assignment sheet and an interview guide. Data collection was carried out through task-based interviews. To get complete and accurate data recorded through audiovisual. Data were analyzed descriptively through genetic decomposition based on APOS (action-process-object-schema) theory. The results of this study are that L can coordinate the process-object of all the properties of a given function, with adjacent or overlapping intervals in all h domains so that a mature scheme of function graph sketches is formed. So that an accurate function graph sketch is obtained. The conclusion is that L's cognitive process of applying derivatives is at a high level. It's a trance level.

The Understanding Abilities of Real Number Concepts For Primary School Student Khathibul Umam Zaid Nugroho; Saleh Haji
Annals of Mathematical Modeling Vol. 2 No. 2 (2022)
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/amm.v2i2.19

The purpose of this study was to determine the characteristics of relational elementary students in understanding the concept of real numbers. This research is an exploration of the research subject. The subjects of this study were students of MIN 2 Bengkulu Selatan. There is one realistic student in this research. The researcher is the main instrument in this research which is supported by an interview guide and an assignment sheet on the concept of real numbers. The data were analyzed qualitatively. The results of this study are that students with relational abilities can combine separate pieces of information to produce the completion of a task. Therefore it is suggested to teachers and researchers of mathematics education to explore students' mathematical cognitive processes before determining the learning strategies to be carried out.

Proses Kognitif Siswa dalam Mencari Luas Segitiga melalui Media Sederhana Ditinjau dari Teori APOS Khathibul Umam Zaid Nugroho; YL Sukestiyarno; Sugiman Sugiman; Mohammad Asikin
Prosiding Seminar Nasional Pascasarjana Vol. 5 No. 1 (2022)
Publisher : Pascasarjana Universitas Negeri Semarang

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Segitiga adalah salah satu konsep yang wajib dipelajari oleh siswa SD. Siswa sering mengalami kesalahan dalam menentukan luas daerah segitiga. Tujuan penelitian ini adalah mendeskripsikan proses berpikir siswa dalam menemukan luas daerah segitiga. Subjek penelitian ini adalah siswa sekolah dasar di Kota Bengkulu, Indonesia. Kami melakukan interview berbasis tugas kepada dua puluh satu orang. Data hasil penyelesaian tugas dianalisis awal untuk menentukan level berpikir mereka. Itu adalah menggunakan dekomposisi genetiknya. Kami mengklasifikasikan merekan ke dalam lima level perkembangan skema. Kami memilih siswa yang berada pada level trans untuk diwawancari lanjutan secara mendalam. Kami menggunakan audio-visual recorder untuk mendapatkan data yang lengkap dan akurat. Data dianalisis dengan menerapkan teknik analisis data kualitatif. Hasil penelitian ini adalah ada 19% subjek penelitian yang berada pada level intra, 33% berada pada level semi-inter, 33% berada pada level inter, dan 10% (= 2 orang) subjek berada pada level inter, serta hanya satu orang yang berada pada level trans (= 5%). Simpulan penelitian ini adalah bahwa siswa yang berada pada level tertinggi mampu membangun keterkaitan antara aksi-aksi, proses-proses, objek-objek, dan previous schema sehingga terbentuk suatu skema yang matang tentang luas daerah segitiga.

Understanding The Pythagorean Theorem Through The Area of a Square Khathibul Umam Zaid Nugroho; YL Sukestiyarno; Sugiman Sugiman; M. Asikin
International Conference on Science, Education, and Technology Vol. 8 (2022)
Publisher : Universitas Negeri Semarang

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Abstrak. Pyhtagoras' Theorem is a very important principle in mathematics, but many elementary students find it difficult to understand it. Therefore, this study aims to describe the quality of student responses in finding the Pythagorean formula. It is a descriptive-qualitative study to obtain a collection of students' thought processes and actions. The research subjects were selected based on their abstraction characteristics which could be classified into five groups. They are pre-structural, unistructural, multistructural, relational and extended-abstract. Students who become research subjects are elementary school students in Bengkulu City, Indonesia. The subjects of this study were twenty five people. The research instrument is the researcher himself who is guided by student assignments. Task-based interviews were applied to collect complete data. It is data collection using audio-visual recording. This data collection technique ensures that the data collected is complete and accurate. It is the genetic decomposition of the research subject. The results of this study are 3 students with pre-structural character, 5 unistructural students, 9 multistructural students, 7 relational students and 1 extended-abstract student. The conclusion of the study is that there are relational students who are able to coherently combine separate pieces of information and find the Pythagorean formula.

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