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Ferry Ferdianto

Pendidikan Matematika, Fakultas Keguruan Dan Ilmu Pendidikan, Universitas Swadaya Gunung Djati

Author-ID : 447060

Agriculture, Biological Sciences & Forestry Humanities Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Medicine & Pharmacology Nursing Public Health Social Sciences Other

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Analisis Kemampuan Pemahaman Matematik Siswa SMP Dengan Materi Kubus Dan Balok: Analysis Of Junior High School Students' Mathematical Understanding Ability With Material Cubes And Blocks Rizal Fahmy Fasya; Ferry Ferdianto
Edu-Sains: Jurnal Pendidikan Matematika dan Ilmu Pengetahuan Alam Vol. 11 No. 2 (2022): Juli 2022
Publisher : Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jmpmipa.v11i2.5240

Matematika merupakan salah satu bagian yang penting dalam ilmu pengetahuan. Apabila dilihat dari sudut pengklasifikasian bidang ilmu pengetahuan, matematika termasuk ke dalam ilmu-ilmu eksakta yang lebih memerlukan pemahaman dibandingkan hapalan. Adapun tujuan dari penelitian ini adalah untuk meninjau sejauh mana kemampuan pemahaman matematika siswa sekolah menengah pertama yang meliputi indikator menyatakan ulang konsep yang telah dipelajari, menerapkan rumus pada kasus matematika serta melaksanakan perhitungan rutin dan algoritmik. Jenis penelitian ini merupakan penelitian kuantitatif. Untuk populasi dari penelitian ini adalah seluruh siswa kelas VIII MTS PUI Banjaran dengan sampel penelitiannya yaitu 10 orang siswa kelas VIII. Teknik pengambilan sampel yang digunakan yaitu random sampling. Adapun instrumen pengumpulan data yang digunakan yaitu soal tes berbentuk uraian yang berjumlah lima soal. Untuk teknik analisis data yang digunakan yaitu statistik deskriptif. Hasil penelitian yang diperoleh menunjukkan bahwa pemahaman konsep siswa sebesar 30%. Hal ini dapat disimpulkan bahwa siswa masih kurang dalam kemampuan pemahaman konsep matematika.

Kemampuan Komunikasi Matematis Siswa SMA dalam Menyelesaikan Soal Matriks ditinjau dari Kecerdasan Interpersonal Soleha Soleha; Ferry Ferdianto
Prosiding Seminar Nasional Pascasarjana Vol. 5 No. 1 (2022)
Publisher : Pascasarjana Universitas Negeri Semarang

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Tujuan penelitian ini yaitu untuk mendeskripsikan analisis kemampuan komunikasi matematis siswa SMA dalam menyelesaikan soal matematika ditinjau dari kecerdasan interpersonal. Jenis penelitian ini menggunakan metode deskriptif dengan pendekatan kualitatif. Teknik pengumpulan data yang digunakan dalam penelitian ini berupa tes dan wawancara. Pendukung instrumennya berupa angket kecerdasan interpersonal, tes kemampuan komunikasi matematis tulis, dan pedoman wawancara. Subjek yang akan diambil dalam penelitian ini adalah 3 siswa yang mempunyai kategori tinggi, sedang, dan rendah dalam tingkatan kecerdasan interpersonal, yang kemudian akan dianalisis kemampuan komunikasi matematisnya guna untuk mengetahui apakah siswa yang mempunyai kategori dalam kecerdasan interpersonal akan bagus juga dalam kemampuan komunikasi matematisnya. Hasil penelitian diperoleh, maka dapat disimpulkan bahwa siswa yang memiliki kecerdasan interpersonal tinggi sudah mampu menjelaskan semua yang dimaksud pada soal, siswa dengan kecerdasan interpersonal sedang belum mampu menjelaskan kesimpulan karena ada kesalahan dalam proses perhitungan jawaban soal, dan siswa yang memiliki kecerdasan interpersonal sedang belum mampu menjelaskan kesimpulan karena ada kesalahan dalam proses perhitungan jawaban soal.

Analysis of Mathematical Thinking Skills on Numerical Problems Ferry Ferdianto; Siti Latifah; Yohanes Leonardus Sukestiyarno
International Conference on Science, Education, and Technology Vol. 8 (2022)
Publisher : Universitas Negeri Semarang

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Abstract. This study aims to determine students' mathematical thinking skills on numeracy problems. The research method used is the descriptive qualitative method, with the subjects in this study being class VIII G students, totaling 20 students with even absent numbers. The instrument used in data collection used a numeracy test instrument using indicators of mathematical thinking ability from Stacey and interviews. Data analysis techniques used include data reduction, data presentation, and conclusion. The results showed the results of the analysis of the percentage of overall indicators, and the analysis of per indicator for each question of mathematical thinking ability 20 students with even-numbered absences in class VIII G was in the medium category, with an overall average of 33%.

Layers of Student Understanding Based on Pirie Kieren's theory in Solving Story Problems in Terms of Cognitive Style Nurul Ikhsan Karimah; Setiyani Setiyani; Ferry Ferdianto; Sri Sumarwati; Devi Heryanti
IJORER : International Journal of Recent Educational Research Vol. 5 No. 2 (2024): March
Publisher : Faculty of Teacher Training and Education Muhammadiyah University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46245/ijorer.v5i2.559

Objective: Understanding lines and angles serves as the foundation for further mathematical topics such as trigonometry, geometry, calculus, etc. Students may struggle with advanced mathematical reasoning and problem-solving without a firm grasp of these basic concepts. This study aims to investigate how students' mathematical understanding processes are based on the folding back theory. Method: The research utilizes a qualitative approach with descriptive eksploratif design. Two subjects were selected from 28 seventh-grade students, each representing the field-dependent and field-independent cognitive style. Data was collected through mathematical comprehension tests, GEFT tests, and interviews. Data were analyzed through data reduction, data presentation, and verification stages, with each subject being interviewed to verify the processes. Results: Based on the research results, students in the field-independent cognitive style were much more active and better understood the problem-solving process than those in the field-dependent. However, both subjects still required learning assistance. Novelty: This research explores the folding back theory in the mathematical understanding process based on cognitive styles, whereas previous studies have mainly focused on mathematical comprehension abilities. Therefore, further research would benefit from using instructional media to better engage students in understanding the material.

Analisis Kemampuan Berpikir Kritis Matematis Siswa pada Materi Trigonometri Ditinjau dari Motivasi Belajar Ratna Yulia, Ervika; Ferdianto, Ferry
Pasundan Journal of Mathematics Education : Jurnal Pendidikan Matematika Vol. 13 No. 1 (2023): Pasundan Journal of Mathematics Education : Jurnal Pendidikan Matematika
Publisher : Program Magister Pendidikan Matematika, Pascasarjana, Universitas Pasundan in collaboration with Asosiasi Guru Matematika Indonesia (AGMI) and Indonesian Mathematics Educators' Society (IMES)

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Berdasarkan observasi lapangan yang dilakukan oleh peneliti di salah satu Madrasah Aliyah Negeri (MAN) yang ada di Kabupaten Cirebon diperoleh fakta bahwa hasil pengerjaan tugas dan penilaian harian matematika siswa kurang memuaskan. Siswa juga sering terlambat mengumpulkan tugas. Peneliti melihat bahwa hal tersebut terjadi karena kurangnya motivasi belajar siswa terhadap pelajaran matematika. Penyebab lainnya adalah karena siswa mengalami kesulitan dalam menyelesaikan soal yang menuntut kemampuan berpikir kritis matematis pada pokok bahasan trigonometri. Sehingga tujuan dari penelitian ini adalah untuk menganalisis kemampuan berpikir kritis matematis siswa pada materi trigonometri ditinjau dari motivasi belajar. Metode penelitian menggunakan penelitian deskriptif kualitatif. Instrumen yang digunakan yaitu angket motivasi belajar, soal tes kemampuan berpikir kritis matematis dan wawancara. Berdasarkan hasil penelitian, motivasi belajar siswa pada materi trigonometri di kelas XI MAN 1 Kabupaten Cirebon dikelompokan menjadi 3 kategori yaitu 10% untuk motivasi belajar kategori tinggi, 73% untuk motivasi belajar kategori sedang, dan 17% untuk motivasi belajar kategori rendah. Siswa dengan motivasi belajar kategori tinggi memiliki kemampuan berpikir kritis matematis yang berbeda, yaitu terdapat kategori sangat tinggi dan kategori tinggi. Siswa dengan motivasi belajar kategori sedang memiliki kemampuan berpikir kritis matematis rendah. Sedangkan siswa dengan motivasi belajar rendah memiliki kemampuan berpikir kritis matematis sangat rendah.

Analisis Kemampuan Pemecahan Masalah Matematis Konseptual Ditinjau dari Gaya Kognitif Field Independent (FI) dan Field Dependent (FD) Siswa SMA Sutyani, Tiana; Aminah, Neneng; Ferdianto, Ferry; Citra, Yulia
Teorema: Teori dan Riset Matematika Vol 8, No 2 (2023): September
Publisher : Universitas Galuh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25157/teorema.v8i2.11582

ABSTRAKPentingnya kemampuan pemecahan masalah matematis kontekstual siswa tidak sesuai dengan fakta yang ada. Realita di lapangan kemampuan siswa dalam memecahkan masalah kontekstual bervariasi dan banyak yang masih rendah. Hal tersebut dapat dipengaruhi oleh faktor psikologis siswa yang berkaitan dengan perbedaan dalam menerima dan memproses informasi dalam memecahkan masalah yang disebut gaya kognitif. Penelitian ini bertujuan untuk mendeskripsikan kemampuan pemecahan masalah matematis kontekstual siswa SMA ditinjau dari gaya kognitif field independent (FI) dan field dependent (FD). Penelitian ini menggunakan pendekatan kualitatif dengan metode deskriptif. Subjek penelitian adalah kelas X berjumlah 6 yang dipilih dengan metode purposive sampling. Proses pemecahan masalah siswa diperoleh dengan instrumen TKPMMK dan wawancara yang telah divalidasi, sedangkan klasifikasi tipe Gaya kognitif FI dan FD siswa ditentukan dengan tes standar GEFT. Persentase jumlah gaya kognitif siswa FD pada kelas penelitian adalah 55,88% sedangkan FI sebesar 44,12%. Selain itu, hasil penelitian FI-K dan FI-S memiliki kemampuan yang baik dalam memecahkan masalah kontekstual, Kemampuan pemecahan masalah matematis kontekstual FI-L dan FD-K tergolong cukup, sedangkan kemampuan pemecahan masalah matematis kontekstual FD-S dan FD-L tergolong kurang. Dengan kata lain siswa dengan gaya kognitif field independent memiliki kemampuan pemecahan masalah matematis kontekstual baik dan cukup, sedangkan siswa bergaya kognitif field dependent memiliki kemampuan pemecahan masalah matematis kontekstual cukup dan kurang.

Pierre Kieren's theory: the folding back process in mathematical problem solving Utami, Rini; Setiyani, Setiyani; Sundawan, Mohammad Dadan; Sumarwati, Sri; Ferdianto, Ferry
Journal of Education and Learning (EduLearn) Vol 19, No 3: August 2025
Publisher : Intelektual Pustaka Media Utama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/edulearn.v19i3.21708

The learning of mathematics generally undergoes a less effective and less appealing learning process, resulting in students’ perceived lack of mastery of the material. Consequently, students’ insufficient understanding of the concepts leads to a lack of folding back. In the process of understanding, it influences individual characteristics, where two characteristics are cognitive styles: field-dependent and field-independent. The researcher aims to understand how the folding back process occurs in students with field-dependent and field-independent cognitive styles when solving story problems. This research is a descriptive qualitative study, with 2 students selected from a total of 28 students in class VII-A as subjects. The selected subjects have high mathematical abilities and are classified into the categories of field-dependent and field-independent cognitive styles. Data collection involves comprehension tests, group embedded figure test (GEFT), and interviews. Data analysis consists of stages such as data reduction, data presentation, and verification. Each subject is interviewed to verify their process of solving the given problems. The results of the research conclude that students with the field-independent cognitive style category have a better understanding of the material, concepts, and problem-solving compared to students in the field-dependent category.

MINIMALISIR KETAKUTAN MASYARAKAT MELALUI SOSIALISASI DAN SIMULASI PEMBERIAN BANTUAN HIDUP DASAR (BHD) Ferdianto, Ferry; Putra, Sandy Dwiana; Fathiy, Naufal Zahiril; Raissa, Indira
Jurnal Abdimas Bina Bangsa Vol. 6 No. 1 (2025): Jurnal Abdimas Bina Bangsa
Publisher : LPPM Universitas Bina Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46306/jabb.v6i1.1735

Emergency situations do not only occur due to very dense traffic, but also often occur within the family and community, all of these situations need to be resolved immediately in a matter of minutes or even seconds, so practical knowledge is needed for all people about first aid in emergencies. First aid in emergencies is a series of first efforts that can be done in emergency conditions in order to save patients from death which is better known as Basic Life Support (BLS). BLS socialization and simulation programs are needed to improve community knowledge and skills. This activity is carried out through initial observation, socialization with presentations and demonstrations, and evaluation using pre-tests and post-tests. The evaluation results showed a significant increase in participant understanding, with 42% achieving a good level of understanding after participating in the activity. The supporting factors for the success of this activity were support from village officials and active community participation. Although there were obstacles such as time constraints, this activity provided great benefits in improving community preparedness in emergency situations. With positive results, this education model can be applied in other areas to improve public health literacy.

THE PROFILE OF CREATIVE THINKING PROCESS: PROSPECTIVE MATHEMATICS TEACHERS Gunawan, Gunawan; Ferdianto, Ferry; Mulyatna, Fauzi; Untarti, Reni
JURNAL EDUSCIENCE Vol 12, No 2 (2025): Jurnal Eduscience (JES), (Authors from United Kingdom, Nigeria, and Indonesia)
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jes.v12i2.6915

Purpose The creative thinking process is one of the important components of creativity. The profile of the creative thinking process of prospective mathematics teachers based on the level of creativity is explained in this study.Methodology –The applied research method was qualitative with an exploratory approach. The research involved 35 prospective mathematics teachers in the Multivariable Calculus course. The data collection techniques were creative thinking tests and interviews. Data analysis uses data reduction techniques, presentation, and conclusion drawn.Findings –The stages of the creative thinking process include preparation, incubation, estimation, illumination, and verification stages. The study results show that the profile of the creative thinking process of students in the creative and creative category can find unique ideas, and their application is carried out in detail. Each stage of creative thinking is fulfilled clearly. Especially for the estimation stage, it is a new finding in the creative thinking process. The estimation stage makes a real contribution to the birth of creativity. The term to describe the estimation stage is "trial and error."Significance –The findings show that the estimation stage, or "trial and error," helps accelerate the acquisition of creative ideas. This stage is a strategic solution to increase creativity. However, using teaching materials or student worksheets must still be increased to implement the estimation stage in the problem-solving flow.

Integrated Differentiated Learning Social-Emotional Competence: An Innovative Solution to Numeracy Skills Gunawan, Gunawan; Pertiwi, Budi Wahyu; Ferdianto, Ferry; Akhsani, Lukmanul
JTAM (Jurnal Teori dan Aplikasi Matematika) Vol 9, No 2 (2025): April
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jtam.v9i2.28286

A crucial aspect in various disciplines is numeracy skills. The purpose of the study was to determine the difference in the average social-emotional competence and numeracy skills of students before and after the implementation of differentiated learning that integrated social-emotional competence. The research was conducted at SMP Negeri Satu Atap 1 Cimanggu, Cilacap. The sample in this study was selected using the saturated slicing technique involving 22 grade VIII students. The type of research is an experimental study that uses a pre-experimental design with a one-group pre-test post-test method. The data collection techniques used include observation, tests, and questionnaires. There are 20 questions in the questionnaire. Data analysis was carried out quantitatively using paired sample t-tests and descriptive statistics. Before conducting the analysis, a prerequisite test was carried out using a normality test to test the distribution of data. The results of the study showed that the numeracy skills had a significance value of 0.200 (>0.05) and the social-emotional competence had a significance value of 0.11 (>0.05) which showed that the data was normally distributed. The results of the analysis showed that the value of the t-test of numeracy was 49.423 (t-test > ttable), with a significance value (2-tailed) < 0.05 (0.00 < 0.05). For KSE, the statistical value of the t-test was 27.54 with a very small p-value (5.75×10⁻¹⁸) indicating that there is a significant difference in the average value of numeracy skills and KSE before and after the implementation of integrated differentiation learning KSE. Integrated differentiation learning KSE can be applied to improve numeracy skills. The results of this study can be used as a solution to overcome the low mathematical numeracy skills of students.

Co-Authors Ade Citra Irawanti Anggita Maharani Anggita Maharani Bakhtiar Rifai Budianto, Erwin Choirunnisa Rinnatullaili Devi Heryanti Dian Permana Putri Dina Pratiwi Dwi Santi Erawati, Turini Fadilah, Muhamad Kahfi Fathiy, Naufal Zahiril Fauji, Sandi Hermana Fauzi Mulyatna Frisca Shella Fadiyah Ghanny Ghanny Ghanny, Ghanny Gunawan Gunawan Gunawan Gunawan Habiibah Hotiah, Herera Irawanti, Ade Citra Iwan Junaedi Jaufillaili . Laela Sagita Laela Sagita Leonardus Yesino Lovania Haristiana Lukmanul Akhsani M. Dadan Sundawan Mila Nuryah Misni Misni Mohammad Dadan Sundawan, Mohammad Dadan Muhammad Dzaky Noer Raehan Mulyono Mulyono Muniifah Muslimah, Nur Annisa Neneng Aminah Nurochman Andika Nurul Ikhsan Karimah Oktoviani, Vika Pertiwi, Budi Wahyu Pinkan Pramesti Putra, Sandy Dwiana Raissa, Indira Ratna Yulia, Ervika Reni Untarti Rizal Fahmy Fasya Romziyah Vidyani Sandi Hermana Fauji Setiyani Setiyani Setiyani Setiyani Setiyani Setiyani Setyani, Setiyani Shella Dhiya Ulhaq Siti Latifah Sofi Saifiyah Soleha Soleha Sri Sumarwati Sumarwati, Sri Supriyadi Supriyadi Sutyani, Tiana Suzana, Anna Triana, Sabrina Dinda Trusti Hapsari Umar Soleh Utami, Rini Vika Oktoviani Widoyani, Wiris Laras Wiris Laras Widoyani Yesino, Leonardus Yohanes Leonardus Sukestiyarno Yulia Citra, Yulia Zulfa Afifah Afra

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