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Darhim Darhim

Universitas Pendidikan Indonesia

Author-ID : 249722

Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Computer Science & IT Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Neuroscience Nursing Physics Public Health Social Sciences Other

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Enhancing Students’ Mathematical Representation Ability Using the Concrete-Pictorial-Abstract Approach Azmidar, Azmidar; Darhim, Darhim; Dahlan, Jarnawi Afghani
Jurnal Pendidikan MIPA Vol 22, No 1 (2021): Jurnal Pendidikan MIPA
Publisher : FKIP Universitas Lampung

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Mathematical representation ability is basic for others’ mathematical ability, such as understanding ability, communication ability, reasoning ability, and problem-solving ability. The purpose of this research was to analyze the enhance students’ mathematics representation ability using the Concrete-Pictorial-Abstract Approach in the group (CPA-G) based on prior mathematical ability. The research method used the quasi-experimental with pre-response and post-response design. The population of this research was students grade VII. This research uses two classes which selected purposely, an experimental group that receives CPA-G and a control group that received regular learning (RL). Prior mathematical ability and mathematical representation ability tests were used as an instrument in this research. The result shows that the mathematical representation ability of students in high and middle of prior mathematical ability category, who received CPA-G higher than students who only received RL. This approach can enhance students’ mathematical representation ability, especially on the visual and symbolic representation. Keywords: The Concrete-Pictorial-Abstract approach in the group, mathematical representation ability, quasi experimental research DOI: http://dx.doi.org/10.23960/jpmipa/v22i1.pp67-76

Kesalahan Siswa Menyelesaikan Soal Pola Bilangan, Barisan, dan Deret Tipe HOTS Berdasarkan Teori Newman Ditinjau dari Gender Siagian, Qania Agustika; Herman, Tatang; Darhim, Darhim; Khairunnisa, Khairunnisa
Edumatica : Jurnal Pendidikan Matematika Vol 12 No 2 (2022): Edumatica: Jurnal Pendidikan Matematika
Publisher : Department of Mathematics Education, Faculty of Teacher Training and Education, Universitas Jambi

This study aims to analyze the errors of students with HOTS abilities at high, medium and low levels and identify student errors in solving HOTS (Higher Order Thinking Skill) type questions in terms of gender. This type of research is qualitative with a case study approach. The research subjects were selected 3 male students and 3 female students, each of which the HOTS ability level was high, medium and low consisting of 2 students. Data collection techniques used HOTS-type tests and interviews. The analytical framework was developed based on Newman's theory of error categories. The data obtained were tested for validity through credibility, transferability, dependability, and confirmability tests. The results showed several differences in the types and percentages of errors made by male and female subjects in solving HOTS-type questions. The biggest mistakes made by both genders in the material of number patterns, sequences, and series are misunderstandings of 33.33%, followed by errors in determining the final answer of 23.02%, transformation errors of 22.22%, errors in the completion process of 20.63%, and finally, reading errors of 0.79%. It can be seen that the female gender makes more mistakes by 57.14% compared to the male gender by 41.86%.

How is the Process of Mathematical Literacy Viewed From the Initial Mathematical Performance? Kadarisma, Gida; Juandi, Dadang; Darhim, Darhim
Jurnal Pendidikan Progresif Vol 14, No 1 (2024): Jurnal Pendidikan Progresif
Publisher : FKIP Universitas Lampung

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Abstract: How is the Process of Mathematical Literacy When Viewd From the Initial Mathematical Performance? The role of mathematics functionally in the context of everyday life which refers to the ability of individuals to respond to needs and obstacles in society is known as the conception of mathematical literacy. Mathematical literacy is an important aspect that every individual has to face the 21st century, there are 3 important processes in mathematical literacy, namely formulating, employ and interpreting mathematical results into everyday problems, besides that students' initial mathematical abilities are important and related to mathematical literacy. Therefore the aim of this research is to analyze the process of mathematical literacy in terms of initial mathematical abilities. This research is a qualitative descriptive study with a subject of 3 students consisting of 1 student each with high, medium and low initial math skills in junior high school students in Cimahi. The instruments used in this study were a Mathematical Literacy test instrument consisting of 3 questions, an initial mathematical performancetest and an interview guide. The results of this study indicate that students with low performance cannot carry out the 3 processes of mathematical literacy (Formulation, employ and interpreting), students with moderate abilities can formulate problems in mathematical form and use mathematical concepts for problem solving but are still wrong in doing calculations and unable to interpret the information contained in the table/diagram. Whereas for students with high initial mathematical performance, they can formulate everyday problems in mathematical representations, they can also use concepts, facts and procedures for problem solving but are not yet precise at the stage of interpreting and communicating in writing Keywords: mathematical literacy, initial mathematical performance.DOI: http://dx.doi.org/10.23960/jpp.v14.i1.202446

Linear Equation and Linear Function: An Alternative Material Based on Visual Representation in Mathematics Sugama Maskar; Audra Pramitha Muslim; Darhim Darhim; Tatang Herman; Nicky Dwi Puspaningtyas
Jurnal Inovasi Matematika Vol 6 No 2 (2024): Inovasi Matematika (Inomatika)
Publisher : Pendidikan Matematika Universitas Muhammadiyah Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35438/inomatika.v6i2.469

Linear equations and linear functions are important materials for students in developing their in-depth knowledge of arithmetic and algebra. However, there is a gap between potential development and actual development, which causes obstacles for students in understanding the concepts of these two materials. This gap results in other obstacles, including a fixed mindset in mathematics. The results of interviews with secondary school teachers in Indonesia also show that students have problems in number operations and motivation to learn mathematics. The design used in this study uses a descriptive qualitative study based on the results of literature studies, interviews with subject teachers, and the author's experience as an educator. This study also uses the theory of zone proximal development and mathematical mindset as a frame for preparing alternative material for equations and linear functions based on visual representations in mathematics. The results of this study contribute to providing alternative materials to reduce these barriers using a visual representation approach in mathematics. The author also provides alternative teaching arts to anticipate obstacles that arise when implementing mathematics material based on visual representation.

The Effect of Cooperative Learning Models on The Students' Mathematical Critical and Creative Thinking Ability: Meta-Analysis Study Siagian, Qania Agustika; Darhim, Darhim; Juandi, Dadang
Jurnal Cendekia : Jurnal Pendidikan Matematika Vol 7 No 1: Jurnal Cendekia: Jurnal Pendidikan Matematika Volume 7 Nomor 1 Tahun 2023
Publisher : Mathematics Education Study Program

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cendekia.v7i1.2281

This study aims to describe the results of the study and examine the effect of the implementation of the Cooperative learning model on the students' mathematical critical and creative thinking abilities and obtain an effect size when viewed based on educational level, sample size, and research demographics from the primary studies being analyzed. This research is quantitative research with a meta-analysis research design. The research sample that met the inclusion criteria consisted of 34 primary studies of mathematical critical thinking ability (the total effect size of the studies was 39) and 23 primary studies of mathematical creative thinking ability (the total effect size of the studies was 24). Based on the research findings, it was found that the overall effect of the implementation of the cooperative learning model on the students' mathematical critical thinking skills had a significant effect with an effect size of 0.792. Overall, implementing the cooperative learning model on the students' mathematical creative thinking ability had a significant effect with an effect size of 0.696. In addition, there is no difference in mathematical creative and critical thinking abilities between the students who studied in the cooperative class and those who studied other than in the cooperative class in terms of education level and sample size. There is no difference in mathematical critical thinking skills between the students who studied in the cooperative class and those who studied other than in the cooperative class in research demography. However, there are differences in mathematical creative thinking abilities between the students who studied in the cooperative class and the students who studied other than in the cooperative class in terms of research demography.

Mathematic Resilience Ability of Students in Linear Program Material with Blanded Learning in the Era of Pandemic Laelasari, Laelasari; Darhim, Darhim; Prabawanto, Sufyani
JTAM (Jurnal Teori dan Aplikasi Matematika) Vol 6, No 2 (2022): April
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jtam.v6i2.6961

Mathematical resilience is a multidimensional construct in positive psychology focusing on mental health. The education system in Indonesia changed the 2019 Novel Coronavirus (COVID-19) pandemic. This pandemic event provides an opportunity for academics to take further academic decisions in the future. Good mathematical resilience skills are needed to prepare students to carry out the Tri Dharma of Higher Education. The purpose of this study is to comprehensively examine mathematical resilience skills using a blended learning model during a pandemic. This type of research uses case study research and is descriptive. The research was conducted on fourth-semester students of the 2020-2021 academic year at a private university in Cirebon, West Java, with research subjects consisting of 37 students. The data was obtained from a mathematical resilience questionnaire in linear program lectures using a blended learning model. Collecting data using a questionnaire instrument was analyzed using the formula for the distribution of frequencies and percentages. The results showed that students' mathematical resilience skills using blended learning in the Linear Program courses during the Covid-19 pandemic were good; previous research on the Linear Program courses obtained good results of resilience abilities but in different samples. The existence of the Covid-19 pandemic does not have much effect on mathematical resilience abilities.

Transforming Mathematics Teaching Skills’ Pre-Service Teachers Using Digital Project Learning Satriawati, Gusni; Darhim, Darhim; Asih, Endang Cahya Mulyaning; Martadiputra, Bambang Avip Priatna
Edumatica : Jurnal Pendidikan Matematika Vol 15 No 3 (2025): Edumatica: Jurnal Pendidikan matematika (Desember 2025)
Publisher : Department of Mathematics Education, Faculty of Teacher Training and Education, Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/edumatica.v15i3.46574

Technological Pedagogical Knowledge (TPK) is a skill that combines pedagogical and technological competencies to support teachers' professionalism in teaching mathematics in the era of digitalization. The purpose of this study is to determine the enhancement of TPK skills among Pre-Service Mathematics Teachers (PSMTs) who studied using a Digital Project Learning (DPL) approach compared to those who learned using a conventional approach. The research method used was an experiment with a posttest-only control group design. The research was conducted in the mathematics education study program at UIN Syarif Hidayatullah Jakarta during the 2023/2024 academic year, with the research sample comprising students from two classes enrolled in Mathematics Learning Strategy (MLS) courses. Seventy-two students enrolled in a mathematics learning strategies course were divided into an experimental group (n=34) and a control group (n=38). The instrument used in this study is a rubric-based observation sheet to assess students' TPK. The results showed that students in the experimental class had better TPK skills compared to PSMTs in the control class. This can be seen in the skills for designing learning and teaching, and in the diversity of technology use. Therefore, DPL is efficacious in improving the TPK skills of PSMTs.

Validation of CORE-Model-Based Geometry Teaching Materials Supported by Wingeom Software Sri Yulianti; Darhim Darhim; Bambang A.P Martadiputra; Jarnawi Afgani Dahlan
AL-ISHLAH: Jurnal Pendidikan Vol 17, No 4 (2025): DECEMBER 2025
Publisher : STAI Hubbulwathan Duri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35445/alishlah.v17i4.7284

This study aims to evaluate the content validity of geometry teaching materials designed for Grade VII junior high school students. These materials were developed using the Connecting, Organizing, Reflecting, and Extending (CORE) instructional model, supported by Wingeom software, to enhance students' conceptual understanding of geometry. To assess validity, expert validation was conducted using structured questionnaires. Six categories of experts participated: subject-matter experts, media experts, mathematicians, school mathematicians, language experts, and learning evaluation experts. Each category included five experts. The Content Validity Index (CVI) was employed to quantify the degree of agreement among experts regarding the relevance of the materials. The results showed high content validity across all expert groups. Specifically, the s-CVI values were 0.96 for media experts, 0.98 for subject-matter experts, 0.97 for mathematicians, 0.96 for school mathematicians, and similarly high scores for evaluation and language experts. These scores exceed the commonly accepted threshold for strong content validity (s-CVI ≥ 0.90). The high CVI values indicate that the geometry teaching materials are valid in terms of content, language, instructional design, and evaluation components. Consequently, the materials are appropriate for use in further research related to mathematics learning processes at the junior high school level.

Students Ways of Thinking on Geometry Resy Nirawati; Darhim Darhim; Siti Fatimah; Dadang Juandi
Didaktik Matematika Vol 9, No 1 (2022): April 2022
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jdm.v9i1.23338

Ways of Thinking (WoT) is a fundamental ability that is part of the mental act that students must learn to solve geometry problems. The purpose of this research was to describe how WoT is used to solve geometry problems. This research used the descriptive qualitative methodology with a holistic case study design and data collection techniques such as tests, interviews, observation, documentation, and triangulation. The subjects in this research were 35 fourth-grade students from Sambas Regency Public Elementary Schools, Indonesia. The research focused on three students with varying levels of cognitive abilities: low, medium, and high.The results showed that students with high, medium, and low cognitive capabilities performed mental acts with the corresponding WoT. Students with high, medium and low cognitive capabilities were more likely to work on questions that required interpretation. Besides, it also revealed that errors committed students were learning errors, reading errors, careless errors, conceptual errors, and procedure errors. The implementation of WoT on the topic of geometry can be utilized as an alternate reference for mathematics teachers when developing teaching materials for mathematics learning to increase studentss' mathematical knowledge.

Tren Penelitian Kemampuan Representasi Matematis dalam Jurnal Pendidikan Matematika Berorientasi Sustainable Living di Indonesia: Tinjauan dari Desain Penelitian sampai Analisis Data Dini Andiani; Darhim; Elah Nurlaelah; Fadli Azis
Jurnal Riset Pendidikan Matematika Jakarta Vol. 8 No. 1 (2026): Vol. 8 No. 1 (2026): Jurnal Riset Pendidikan Matematika Jakarta Volume 8, Nomor
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/jrpmj.v8i1.66105

Penelitian ini bertujuan untuk mengkaji tren penelitian pendidikan mengenai kemampuan representasi matematis yang dipublikasikan dalam jurnal-jurnal pendidikan matematika di Indonesia pada periode 2014 sampai 2022. Dengan menggunakan pendekatan analisis isi kualitatif, penelitian ini menelaah berbagai pola yang meliputi desain penelitian, jenjang pendidikan subjek penelitian, topik matematika yang dikaji, teknik analisis data yang digunakan, pemanfaatan teknologi dalam pembelajaran, serta keterkaitannya dengan Tujuan Pembangunan Berkelanjutan (Sustainable Development Goals / SDGs). Hasil kajian menunjukkan bahwa jumlah publikasi mengalami perkembangan yang tidak stabil, dengan peningkatan yang cukup signifikan pada tahun 2018 setelah terjadi penurunan tajam pada tahun 2017. Dari sisi metodologi, desain penelitian kuantitatif masih sangat mendominasi, khususnya penelitian yang menggunakan statistik deskriptif dan metode inferensial dasar, seperti uji t dan ANOVA. Ditinjau dari subjek penelitian, peserta didik tingkat sekolah menengah pertama merupakan kelompok yang paling sering dijadikan objek kajian. Sementara itu, materi geometri menjadi topik yang paling banyak diteliti, sedangkan domain bilangan masih relatif jarang mendapatkan perhatian. Dalam aspek pemanfaatan teknologi, sebagian besar penelitian belum mengintegrasikan teknologi secara eksplisit dalam proses pembelajaran, meskipun terdapat peningkatan yang cukup terlihat pada masa pandemi COVID-19. Selain itu, meskipun sebagian besar penelitian secara tidak langsung mendukung pencapaian SDG 4 tentang pendidikan berkualitas, keterkaitan secara eksplisit dengan kerangka keberlanjutan global masih sangat terbatas. Berdasarkan temuan tersebut, penelitian ini menegaskan pentingnya pengembangan kajian selanjutnya yang lebih beragam dari sisi metodologi, lebih luas dalam cakupan materi matematika, serta lebih terarah dalam mengaitkan penelitian pendidikan matematika dengan agenda pendidikan global dan pembangunan berkelanjutan.

Co-Authors A Aristika A Jupri A Nurainy A Rohmah Adi Nurjaman, Adi Al Jupri Alberta Parinters Makur Aloisius Loka Son Amril, La Ode Andhin Dyas Fitriani Andini Dwi Rachmawati Anggita Maharani Anwar, Vita Nova Aristika, Ayu Asih, Endang Cahya Mulyaning Audra Pramitha Muslim Audra Pramitha Muslim, Audra Pramitha Azmidar Azmidar Azmidar Azmidar, Azmidar Bambang A.P Martadiputra Bambang Avip Priatna Martadiputra cakrawala Bambang Eko Susilo Bana Kartasasmita Bana Kartasasmita Bernadetha Silaban Bernadetha Silaban Bill Chairy Rizki Bustaren Bonita Hirza Budi Rianto Dadan Dasari Dadan Rahmat Dadang Juandi Dadang Juandi Damianus Dao Samo Delsika Pramata Sari Diar Veni Rahayu Didi Suryadi Dini Andiani Dini Andiani, Dini Ditasona, Candra Dzulfikar, Ahmad Edi Supriyadi Edy Surya Edy Surya Elah Nurlaelah Elah Nurlaelah Elvandri Yogi Pratama Endang Cahya Mulyaning A. Eris Iswara Fadli Azis Fajriadi, Dede Farhan Nurul Imam Farhan Nurul Imam Fatimah, Siti Fitri Rahmawati Fitri, Azela Fitria Maghfiroh, Fitria Fuji Azzumar Gida Kadarisma Gita Safitri Gunawan, Sanie Rachma Setia Gusni Satriawati, Gusni Hamdan Sugilar Hermanto Hesty Marwani Siregar Hidayat, Toni Hunaifi, Hunaifi Husain, Dayana Sabila I Made Suarsana I Made Suarsana Ika Meika Imelda Verina Inayah, Clara fadhilah Inayah, Sarah Indra Siregar Iswara, Eris J A Dahlan Jarnawi Afgani Dahlan Joseph Taban Jozua Sabandar Jozua Sabandar Jozua Sabandar Jozua Sabandar Jurpri, Al Kadarisma, Gida Kadir, Kamaliyah Kartika Yulianti Khairunnisa Khairunnisa Khairunnisa Khairunnisa Kusnandi Kusnandi Kusnandi Kusnandi Kusnandi, Kusnandi Laelasari Laelasari, Laelasari Masitoh, Lisda Fitriana Mhmd. Habibi Muhammad Aiman Jamil Lubis Muhammad Ari Subhi Muhammad Ari Subhi Muhammad Tareq Ghifari mulyanti, Yanti Mulyanti N. Nurjanah Nelly Fitriani Ni Kadek Desi Lia Sagita Nia Gardenia Nike Astiswijaya Nur Eva Zakiah, Nur Eva Nur Hidayatullah Romadhon Nurmala Setianing Putri Oktaviani, Wulan Resti Palupi Sri Wijayanti, Palupi Sri Prabawanto, Sufiyani PRASETYAWAN, ENGGAR Purba, Santri Chintia Puspaningtyas, Nicky Dwi Putri Fitriasari, Putri Qania Agustika Siagian Rachamwati, Andini Dwi Rahayu, Diar Veni Rani Sugiarni Ratu Sarah Fauziah Iskandar Resy Nirawati Risma Nurul Auliya, Risma Nurul Rizki S.Pd. Rizky Rosjanuardi Rohimah, Siti Maryam Rully Charitas Indra Prahmana Rusli, Andi Zahrah Muflihah safitri, gita Sarah Inayah Septian, Ari Siagian, Qania Agustika Siti Fatimah Situmeang, Gita Meilisa Solehudin, Solehudin SRI YULIANTI Stevi Natalia, Stevi Sufyani Prabawanto, Sufyani Sugama Maskar Sugiarti, Dede Suhendra Suhendra Sumarni Sumarni Sumarni Sumarni Supriatna, Tatang Syaiful Hamzah Nasution Syaiful Syaiful Syarifuddin Syarifuddin Tatang Herman, Tatang TATI NURHAYATI Taufiqulloh Dahlan Thesa Kandaga Tia Purniati Turmudi Ulfa, Nadia Ulfah Nur Azizah VARA NINA YULIAN Wahyu Hidayat Wahyudin Wahyudin Widya Kusumaningsih Widya Kusumaningsih Yanti Mulyanti Yaya S Kusumah Yaya S. Kusumah Yaya S. Kusumah Yaya S. Kusumah Yaya S. Kusumah Yaya S. Kusumah Yullys Helsa Yuni, Yatha Yusuf Adhitya Zulkardi Zulkardi Zulkardi Zulkardi

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