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Nizaruddin Nizaruddin

Department Of Mathematics Education, Universitas PGRI Semarang

Author-ID : 2488056

Religion Humanities Chemistry Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Physics Social Sciences Other

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Students' Boredom Profile in Mathematical Problem-Solving: A Computational Thinking Perspective Rahmawati, Fadila; Nizaruddin, Nizaruddin; Murtianto, Yanuar Hery
Jurnal Pendidikan MIPA Vol 26, No 1 (2025): Jurnal Pendidikan MIPA
Publisher : FKIP Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jpmipa.v26i1.pp131-152

Boredom is a mental state characterized by discomfort and dissatisfaction caused by insufficient introduction of stimulus, challenge, or meaning in the environment. Objective: This study aims to describe students' boredom profile in solving mathematics problems based on their computational thinking ability. Methods: The method used was a descriptive qualitative approach with the subject of 62 students consisting of 63% female students and 37% male students of class IX SMP Negeri 1 Semarang, then took nine students with purposive sampling technique, taking subjects based on advanced, intermediate, and basic computational thinking ability tests, taken three each category based on recommendations from subject teachers. Findings: Student boredom is influenced by five factors, namely disengagement, high arousal, inattention, low arousal, and time perception. Students with advanced computational thinking ability generally do not feel bored because they feel challenged, although they can lose interest if the problem is too easy. Students with intermediate computational thinking ability have relatively low boredom, remaining engaged despite difficulties. In contrast, students with basic computational thinking ability are more susceptible to boredom due to difficulty understanding problems, frustration, a desire to quit, and a perceived lack of engaging activities. To overcome the problem of boredom, the recommendation from this study is to provide content-differentiated learning for each student, this can also be a recommendation for further research. Conclusion: Students with advanced computational thinking can feel bored if the problems given are too easy. Meanwhile, students with basic computational thinking feel bored when they find it difficult to understand the problem. Keywords: boredom, mathematics, problem-solving, computational thinking.

Pelatihan bagi Guru SMP Negeri 3 Taman Kabupaten Pemalang dalam Menerapkan Authentic Assesment Nizaruddin, Nizaruddin; Roshayanti, Fenny; Sutrisno, Sutrisno; Fajriyah, Khusnul; Muhtarom, Muhtarom
Pelita: Jurnal Pengabdian kepada Masyarakat Vol. 5 No. 2 (2025): Pelita: Jurnal Pengabdian kepada Masyarakat
Publisher : Perkumpulan Kualitama Edukatika Indonesia

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This Community Service (PKM) activity takes the form of training to enhance the teachers of SMP Negeri 3 Taman, Pemalang Regency, in implementing authentic assessment in learning. This community service aims to provide teachers with understanding and experience in compiling authentic assessment instruments. This PKM activity is carried out using an andragogy approach, namely through training, followed by assignments, and mentoring. The training material is presented with a greater emphasis on practice than theory, featuring a ratio of 25% theory and 75% practice. Community service activities on authentic assessment have successfully improved the understanding of SMP N 3 Taman teachers regarding the importance of authentic assessment in the learning process. Before participating in the community service, teachers’ knowledge of authentic assessment was still limited; however, after attending the training, they demonstrated a deeper understanding of the concept, objectives, and techniques for implementing authentic assessment in the educational context. This increase in understanding indicates that this community service has been successful in providing new insights to teachers regarding the importance of using more authentic assessments, which include portfolio-based assessments, projects, and case-based assessments.

Mathematical beliefs: What topics appear, and how has this changed over time? Muhtarom, Muhtarom; Nizaruddin, Nizaruddin; Sutrisno, Sutrisno; Murtianto, Yanuar Hery; Baldemor, Milagros
Al-Jabar: Jurnal Pendidikan Matematika Vol 14 No 2 (2023): Al-Jabar: Jurnal Pendidikan Matematika
Publisher : Universitas Islam Raden Intan Lampung, INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ajpm.v14i2.18177

This research uses the Systematic Mapping Study (SMS) method to identify knowledge trends in beliefs about the nature of mathematics, learning, and learning mathematics and identify new development opportunities for further research. The Systematic Mapping Study (SMS) method is the initial stage for selecting primary sources in a literature study. The Scopus database was used for SMS, then 171 articles were found ready for further analysis. The results show that mathematical belief has become a current research trend. The keywords are "beliefs." The new trending keyword is "pre-service teachers." The thematic map shows thirteen clusters, where the motivation, pre-service mathematics teachers, mathematics education, beliefs, and attitudes clusters are the motor themes currently a global challenge. This means there are still great opportunities to research this theme to complete the knowledge puzzle. In closing, 41 articles are primary articles related to this theme. Three of them, namely articles from Stipek et al. (2001), Beswick (2012), and Felbrich et al. (2012), can be seen as primary references.

Examining the self-regulated learning scale using the Rasch model approach Nizaruddin, Nizaruddin; Muhtarom, Muhtarom; Murtianto, Yanuar Hery; Sutrisno, Sutrisno
Indonesian Journal of Science and Mathematics Education Vol. 7 No. 3 (2024): Indonesian Journal of Science and Mathematics Education
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ijsme.v7i3.21831

Self-regulated learning is a crucial aspect of the learning process for students. This ability is often overlooked due to the challenges of inaccurate measurement. This study aims to evaluate the quality of a self-regulated learning scale developed through an analysis of respondent responses. The research employed a descriptive quantitative approach using the Rasch Model as the analytical method. The instrument used consisted of 30 statement items. The study sample included 59 mathematics education students selected through cluster random sampling from two universities in different districts. The analysis results indicated that, after three calibration processes, the self-regulated learning scale was refined to 28 items with excellent quality. Furthermore, the responses of 58 students demonstrated a high level of consistency. Thus, self-regulated learning scale has good validity and reliability, making it a dependable tool for measuring self-regulated learning abilities. The implications of this study include the provision of a practical and reliable instrument for researchers and educators to support further studies and serve as an evaluation tool in learning development.

Design of Assessment Instrument for Mathematical Critical Thinking Indicators-Based Essay Questions for Vocational and High School Students Using the Rasch Model Hartato, Jarot Rudi; Nizaruddin, Nizaruddin; Harun, Lukman
JURNAL PENDIDIKAN MATEMATIKA Vol. 9, No. 2: November 2025
Publisher : Universitas Islam Sultan Agung

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This research aims to create a measurement tool for Critical Thinking Skills (CTS) in mathematics. The instrument was analysed using the Rasch model. The analysis was conducted to determine the results of the content validity test (item suitability), reliability test, dimensionality test (construct validity), person separation test, and item separation, and to analyse the items' difficulty level. This research uses the R&D model with the 4D model. Data collection methods through interviews with two teachers, literature studies to determine CTS indicators, questionnaire validation of CTS test instruments, and CTS test questions given to students. The sampling technique used was saturated sampling. The indicators of CTS are Interpretation, analysis, evaluation, and inference. The results for each instrument item are valid; construct validity is good, reliability is sufficient, and Cronbach's alpha is 0.68. The results of the person separation analysis show that students are divided into two groups, and item separation shows that the questions are divided into five groups. The measure (logit value) analysis results show that the interpretation indicator question is easy, the analysis indicator question is very difficult, the evaluation indicator question is moderate, and the inference indicator question is difficult. This research fills the literature gap by developing CTS indicator-based instruments validated by the RASCH approach, which has not been widely applied in SMA / SMK. Keywords: Critical Thinking, Test Instrument, Rasch Model

Analisis Representasi Matematis Siswa dalam Menyelesaikan Soal Cerita Bangun Datar Ditinjau dari Gaya Belajar Bayty, Sherly; Nizaruddin, Nizaruddin; Muhtarom, Muhtarom
Imajiner: Jurnal Matematika dan Pendidikan Matematika Vol 7, No 5 (2025): Imajiner: Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/imajiner.v7i5.21424

Penelitian ini bertujuan untuk mengetahui kemampuan representasi matematika siswa SMP dalam menyelesaikan soal cerita dari berbagai gaya belajar. Metode yang digunakan dalam penelitian ini adalah deskriptif kualitatif. Subjek yang diambil dalam penelitian ini adalah 6 siswa dari 31 siswa kelas VIII A di SMPN 1 MANDIRAJA yang masing-masing mempunyai kriteria gaya belajar visual, auditori, dan kinestetik. Hasil penelitian ini menunjukkan bahwa subjek dengan gaya belajar visual memenuhi semua indikator representasi matematis yaitu representasi visual, representasi persamaan atau ekspresi matematis, dan representasi kata-kata atau teks tertulis dan mampu mengerjakan soal dengan baik. Serta mampu menyajikan permasalahan kedalam bentuk gambar kemudian menuliskan persamaan atau model matematis secara tertulis dengan menggunakan kata-katanya sendiri. Sedangkan subjek dengan gaya belajar kinesteti kurang mampu memenuhi semua indikator representasi matematis yaitu representasi visual, representasi persamaan atau ekspresi matematis, dan representasi kata-kata atau teks tertulis dan mampu mengerjakan soal dengan baik. SertaÂ kurang mampu menyajikan permasalahan kedalam bentuk gambar kemudian menuliskan persamaan atau model matematis secara tertulis dengan menggunakan kata-katanya sendiri. Dan subjek dengan gaya belajar auditori memenuhi semua indikator representasi matematis yaitu representasi visual, representasi persamaan atau ekspresi matematis, dan representasi kata-kata atau teks tertulis dan mampu mengerjakan soal dengan baik. Serta mampu menyajikan permasalahan kedalam bentuk gambar kemudian menuliskan persamaan atau model matematis secara tertulis dengan menggunakan kata-katanya sendiri.

Enhancing Matrix Multiplication Learning in Grade XI: A Design Thinking Approach with Talking Stick and Row-by-Column Techniques Fauzi, Wawan; Harun, Lukman; Nizaruddin, Nizaruddin
Mosharafa: Jurnal Pendidikan Matematika Vol. 14 No. 1 (2025): January
Publisher : Department of Mathematics Education Program IPI Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31980/mosharafa.v14i1.2209

Penelitian ini mengungkap penerapan konsep tongkat bicara dan teknik kolom-kali-baris untuk pembelajaran perkalian matriks siswa kelas XI dengan pendekatan desain berpikir. Penelitian kuantitatif deskriptif ini melibatkan guru mata pelajaran dan 32 peserta didik XI F 1 sebagai subjek penelitian. Penelitian ini diawali dengan observasi awal, diikuti dengan pelatihan teknik, metode, dan pendekatan gabungan, dan kemudian penerapan teknik gabungan oleh guru. Metode pengumpulan data dan instrumen yang diterapkan adalah lembar observasi untuk mengamati situasi sebelum dan sesudah guru saat menggunakan teknik, proses, dan pendekatan gabungan yang telah ditentukan. Para peneliti menganalisis data yang terkumpul menggunakan analisis deskriptif kuantitatif untuk mengidentifikasi perubahan yang paling efektif. Hasilnya menemukan bahwa teknik, metode, dan pendekatan gabungan memiliki pembelajaran perkalian matriks yang lebih baik. Kombinasi yang diterapkan menciptakan suasana belajar yang terstruktur dan interaktif untuk mendorong tanggung jawab dan kolaborasi. Para siswa dapat menjelaskan konsep matriks, memberikan solusi, dan berkolaborasi dengan teman sebayanya. Temuan-temuan ini menunjukkan bahwa memadukan konsep tongkat bicara dengan teknik kolom dikalikan baris melalui pendekatan desain berpikir dapat berfungsi sebagai model pedagogis yang efektif untuk meningkatkan keterlibatan siswa, pemahaman konseptual, dan pemecahan masalah kolaboratif dalam pembelajaran perkalian matriks. This research revealed the implementation of the talking-stick concept and column-multiplied-by-row technique for matrix multiplication learning of XI graders with a thinking design approach. This descriptive quantitative research involved the course teacher and 32 learners of XI F 1 as the research subjects. This research began with preliminary observation, followed by training in the combined technique, method, and approach, and then implementation of the combined technique by the teacher. The method of collecting data and the applied instruments were an observation sheet to observe the pre- and post-situations of the teacher while using the predetermined combined technique, process, and approach. The researchers analyzed the collected data using a quantitative descriptive analysis to identify the most effective changes. The results found that the combined technique, method, and approach had better matrix multiplication learning. The applied combination created structured and interactive learning atmospheres to encourage responsibility and collaboration. The students could explain the matrix concept, provide a solution, and collaborate with their peers. These findings suggest that integrating the talking-stick concept with the column-multiplied-by-row technique through a thinking design approach can serve as an effective pedagogical model to enhance student engagement, conceptual understanding, and collaborative problem-solving in matrix multiplication learning.

Exploration of Creative Problem-Solving Learning Based on Design Thinking with HOTS Questions to Improve Students' Numeracy Wulandari, Ratri Gita; Purwosetiyono, F.X Didik; Nizaruddin, Nizaruddin
JURNAL PENDIDIKAN MATEMATIKA Vol. 9, No. 2: November 2025
Publisher : Universitas Islam Sultan Agung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30659/kontinu.9.2.267-288

The study aims to examine the effectiveness of Creative Problem Solving (CPS) learning based on Design Thinking using HOTS (Higher Order Thinking Skills) questions to improve junior high school students' numeracy skills. This research employed a quasi-experimental method with a multiple-group pretest-posttest design, involving an experimental and a control class. Data were collected through numeracy tests, classroom activity observations, and student response questionnaires. The results indicated that students in the experimental class experienced a significant improvement in numeracy, with an average N-Gain score of 0.72, categorized as high. This learning approach also facilitated active student participation, increased interest in mathematics, and promoted independence in problem-solving. Students' attitudes toward numeracy tasks shifted from frustration to more adaptive strategies. Mastery learning was achieved classically, with posttest scores exceeding the Minimum Mastery Criteria (KKM). In addition to cognitive gains, students expressed positive perceptions of the learning approach, especially due to its contextual, challenging, and exploratory nature. Thus, design Thinking-based learning integrated with HOTS-CPS questions has been proven effective in enhancing students' numeracy and is recommended as an innovative strategy in support of the Merdeka Curriculum. Keywords: Design Thinking, HOTS, Numeracy

Co-Authors Achmad Buchori Afifah, Yuni Nur Agnita Siska Pramasdyahsari Agnita Siska Pramasdyahsari, Agnita Siska Al Khaedar, Istian Diaz Aldira Eka Fauzanah Ali Shodiqin Anggi Tristianti Aprilianawati, Diah Mutiara Arisyanti, Dyah Ayu Aryan Eka Prasetya Nugraha Aryan Eka Prastya Nugraha, Aryan Eka Prastya Aryo Andri Nugroho Astuti, Nisa Atma, Singgih Rudi Aurora Nur Aini Aurora Nur Aini Baldemor, Milagros Bayty, Sherly Danisa Putri Indriyani Devarosary, Vifta Dewi Widya Astuti Dewi Wulandari Dewi Wulandari Dewi, Grahita Sukma Dhian Endahwuri, Dhian Dhoni Kristiawan Dina Prasetyawati Dina Prasetyowati Djoko Purnomo Drifanda, Valdyan Duwi Nuvitalia Dwi Mayangsari Dwi Puspa Anjasari Eko Sugiyono Emi Rahmawati Endah Puji Astuti, Endah Puji Evi Suprihatin Handayani Evinia Kusuma Dewi Farida Nursyahidah Fatheh Anandito Kurniawan Fauzi, Wawan Fenny Roshayanti Fiki Kholilatun FX. Didik Purwosetiyono Habibah, Novalin Hapsari, Vania Sita Hartato, Jarot Rudi Hasrun Afandi UmpuSInga Hayat, M Syaipul Hendrisa Adrillian Heni Purwati hidayatul muna Ida Dwijayanti Khoirunisa, Jihan Afifah Khusnul Fajriyah Kurniawan, Rizki Lely Kurniawati, Annisa Lilik Ariyanto Linda Koes Puji Astuti Loesy Poerhandajani Lukman Hakim Lukman Harun Maftuhin Hudah Marheinna, Adinda Mina Tika Selviana Muhammad Prayito Muhammad Rico Aulya Muhammad Ryan Fahlevi Muhammad Saifuddin Zuhri Muhtarom Mujiasih Mujiasih Mujiasih Mujiasih Murgiwati Murgiwati Mustaqfiroh Nabila Ayu Pertiwi Nihara Aulyana Utami Noora Qotrun Nada, Noora Qotrun Noviana Dini Rahmawati, Noviana Dini Novita Ayu Andani Nur Asiyah Nurfitriani, Anisa Nurina Happy Pramasdyahsari, Agnita Siska Purwosetiyono, F.X Didik Putri, Anggraini Silvia Putri, Zhafarina Maulida Qauliyah, Dewi Sesanti Rahmatika Diah Silvia Rahmawati, Fadila Rahmawati, Nur Indah Rasiman Rasiman Ratnasari, Dede Febriani Rizky Esti Utami, Rizky Esti Rosita Kusumawati Ruliani, Iva Desi Sari, Eva Martia Savitri, Anting Sa’adah, Aulia Naili Sa’diyah, Uswatun Septiyana, Linda Sri Wening Handriastuti Sri Wening Handriastuti Sudargo Sugiyanti Sugiyanti Sumarno Sumarno Supandi Supandi Sutrisno Sutrisno Sutrisno, Sutrisno Tristianti, Anggi Utomo, Rachmat Karno Wahidiyah, Nur Ayu Wulandari, Ratri Gita Y. Gatot Aji Suseno Yanuar Hery Murtianto Yanuar Hery Murtianto Yanuar Hery Murtianto Yanuar Hery Murtianto Yanuar Hery Murtianto

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