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Kusno Kusno

Universitas Muhammadiyah Purwokerto

Author-ID : 302619

Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Physics Public Health Social Sciences Other

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Implementasi Media Sosokmaspras pada Pembelajaran Matematika Model PJBL Materi Diagram di Kelas 2 SD Lawnia, Vika; Kusno, Kusno
Proceedings Series on Social Sciences & Humanities Vol. 24 (2025): Proceedings of International Student Conference on Education (ISCE) 2025
Publisher : UM Purwokerto Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30595/pssh.v24i.1660

Pembelajaran matematika di sekolah dasar sering kali menghadapi kendala dalam menyampaikan konsep-konsep abstrak, seperti materi diagram. Minimnya media konkret kontekstual menjadi salah satu penyebab rendahnya pemahaman siswa. Penelitian ini mengkaji penerapan media Sosokmaspras—miniatur prasmanan soto khas Sokaraja—sebagai media berbasis budaya lokal yang dipadukan dengan model Project Based Learning (PJBL). Pendekatan ini dirancang untuk meningkatkan pemahaman konseptual siswa dan melalui kreativitas proyek pembuatan diagram secara kolaboratif. Hasil penerapan menunjukkan peningkatan signifikan: nilai rata-rata pemahaman konsep diagram naik dari 65,02 (pra-siklus) menjadi 94,00 (evaluasi akhir), dengan peningkatan kreativitas pada dimensi kefasihan (2,27?3,54), fleksibilitas (2,88?3,94), dan kebaruan (2,14?3,60). Sinergi media berbasis budaya dan pendekatan proyek memfasilitasi pembelajaran kontekstual, memicu diskusi aktif, serta mengembangkan keterampilan analisis data dan berpikir inovatif. Temuan ini menegaskan bahwa integrasi kearifan lokal dalam media pembelajaran matematika mendorong keterlibatan siswa secara holistik.

Mathematical Literacy Problems in Exponential Material Based on Vocational Students’ Self-Regulated Learning Pratiwi, Yolanda; Kusno, Kusno; Subekti, Fitrianto Eko
Jurnal Pendidikan Matematika (JUPITEK) Vol 8 No 1 (2025): Jurnal Pendidikan Matematika (JUPITEK)
Publisher : Program Studi Pendidikan Matematika FKIP Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/jupitekvol8iss1pp17-34

This study explores the mathematical literacy challenges faced by students at SMK Negeri 2 Bawang, Banjarnegara Regency, in learning exponential concepts, which are analyzed through the lens of the Independent Regular Learning (SRL) level. Using a descriptive qualitative approach, this study involved three student subjects representing high, medium, and low SRL categories. Data was collected through mathematical literacy tests, SRL questionnaires, and interviews. The research findings indicate that variations in SRL levels significantly influence the types of difficulties students experience. Students with low SRL face various challenges, including understanding the context of the problem, building mathematical models, and interpreting results. Students with moderate SRL demonstrate the ability to understand problems but have difficulty selecting appropriate problem-solving strategies and accurately representing contextual situations in mathematical form. Meanwhile, students with high SRL exhibit systematic and reflective thinking but encounter obstacles connecting mathematical outcomes to real-life contexts. These findings underscore the role of SRL in shaping students' mathematical literacy challenges. Further research is recommended to investigate additional internal factors that influence mathematical literacy in order to develop more adaptive and targeted teaching strategies

Challenges in Solving Contextual Problems in Statistics Using the TEFA Approach Among Vocational Students Nurbaiti, Idhata; Kusno, Kusno; Jazuli, Akhmad
Jurnal Pendidikan Matematika Universitas Lampung Vol. 13 No. 2 (2025): Jurnal Pendidikan Matematika Universitas Lampung
Publisher : Faculty of Teacher Training and Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/mtk/v13i2.pp94-108

This study explores the challenges faced by vocational students in solving contextual problems in statistics using the TEFA (Teaching Factory) approach, aimed at enhancing their analytical and problem-solving skills—competencies that are highly valued in the industrial world. The purpose of this research is to analyze the difficulties students encounter when solving TEFA-based contextual problems in statistical topics. The subjects of this study were 38 tenth-grade students from class X TO 9 at SMK Kesatrian Purwokerto, selected based on their even semester daily test scores. The students were categorized into three groups: high (HC), medium (MC), and low (LC), based on the class average and standard deviation. This research employed a qualitative descriptive method. The findings revealed that students in the high category were generally able to understand statistical concepts and accurately calculate the mean, median, and mode. However, some students in this group did not sort the data from smallest to largest when calculating the median. Students in the medium category had difficulty recalling how to compute the mean, often resulting in incorrect answers; although the mode was correct, the median was not. Meanwhile, students in the low category acknowledged that they lacked understanding of how to calculate the mean, median, and mode.

Geometric transformation and cultural values in traditional batik of Banyumas and Pekalongan: An ethnomathematics study Kusno, Kusno; Gunawan; Nalim; Eka Setyaningsih; Furqon, Miftahul; Faiz, Mohd
Jurnal Elemen Vol 11 No 3 (2025): July
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/jel.v11i3.30721

Banyumas and Pekalongan batik are local cultural heritages of Central Java that contain philosophical values, regional identity, and geometric patterns. Although batik has been widely known as a uniform, its use as a medium for learning mathematics, especially transformation geometry, is still limited. This study aims to examine the relationship between Banyumas and Pekalongan batik motifs with the concept of transformation geometry and the cultural values contained. A qualitative approach with ethnographic methods was used through observation, documentation, in-depth interviews, and field notes. The subjects of the study included cultural figures, batik craftsmen, and tour guides at the Anto Jamil Batik Center (Banyumas) and the Pekalongan Batik Museum. The study focused on the Jahe Srimpang and Babon Angrem motifs (Banyumas), as well as Jlamprang Gunungan and Jlamprang Seamless (Pekalongan). The results showed that these motifs contain elements of geometric transformation such as translation, rotation, symmetry, reflection, and dilation. This study recommends the use of batik as a source of mathematics learning based on local wisdom.

Problems of Mathematical Problem Solving for Grade VIII Students in Circle Material Triyana, Evi; Kusno, Kusno
Postulat : Jurnal Inovasi Pendidikan Matematika Vol. 6 No. 1 (2025): Juli 2025
Publisher : Universitas Muhammadiyah Gresik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30587/postulat.v6i1.9621

The ability to solve mathematical problems is one of the main competencies that need to be mastered in mathematics learning. However, a number of studies reveal that students still experience obstacles in solving math problems, especially on the topic of circles. The purpose of this study is to explore the various causes of difficulties of grade VIII students in solving mathematical problems related to circle material and offer alternative solutions that can be used in the learning process. This research was conducted with a descriptive qualitative approach through a case study of several junior high school students in grade VIII. The findings of this study show that the main obstacles for students lie in the lack of understanding of the basic concept of circles, errors in the use of formulas, and limitations in designing problem-solving steps. Therefore, problem-based learning strategies and contextual learning approaches are recommended to be implemented to support improved student understanding.

Problems of Students' Mathematical Literacy Reviewed from the Self-Regulated Learning of Vocational High School Students on Exponential Material Pratiwi, Yolanda; Kusno, Kusno; Subekti, Fitrianto Eko
Proceedings Series on Social Sciences & Humanities Vol. 25 (2025): Proceedings of International Conference on Social Science (ICONESS)
Publisher : UM Purwokerto Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30595/pssh.v25i.1728

Mathematical literacy is a crucial aspect of mathematics learning, yet it remains a significant challenge among students. While previous research has largely emphasized instructional approaches to enhance mathematical literacy, there is a lack of focus on the underlying difficulties faced by students, particularly in relation to self-regulated learning (SRL). This study aims to explore the problems in mathematical literacy encountered by vocational high school students at SMK Negeri 2 Bawang, Banjarnegara Regency, on exponential material, analyzed through their SRL levels. Employing a descriptive qualitative approach, the study involved three student subjects representing high, medium, and low SRL categories. Data collection was conducted using a mathematical literacy test, an SRL questionnaire, and interviews. The results indicate that variations in SRL levels significantly influence the types of difficulties students experience. Students with low SRL face extensive challenges, including understanding problem contexts, constructing mathematical models, and interpreting results. Those with medium SRL can comprehend the problems but struggle with selecting appropriate solution strategies and accurately representing contextual situations in mathematical forms. Meanwhile, students with high SRL exhibit systematic and reflective thinking yet encounter obstacles in connecting mathematical results to real-life contexts. These findings underscore the role of SRL in shaping students' mathematical literacy challenges. Further research is recommended to investigate additional internal factors affecting mathematical literacy to develop more adaptive and targeted instructional strategies.

Analysis of Fuzzy Thinking Processess in Students’ Mathematical Communication at SMP Negeri 2 Banyumas Widiarti, Helmy Wahyu; Kusno, Kusno; Jaelani, Anton
Proceedings Series on Social Sciences & Humanities Vol. 25 (2025): Proceedings of International Conference on Social Science (ICONESS)
Publisher : UM Purwokerto Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30595/pssh.v25i.1730

Fuzzy thinking means the thinking process with confusion between understanding and not understanding. This research was conducted to find out the students' experiences of fuzzy thinking in mathematics communication in SMP Negeri 2 Banyumas. This was a descriptive qualitative research and the subjects were taken from the students of class 8 C using snowball technique and T.O.L (Think Out Loud) that fulfilled the criteria of fuzzy thinking either the correct one or the incorrect one. From the results, there were 2 students with correct fuzzy thinking and 4 students with incorrect fuzzy thinking. The data were collected using tests, interviews, and documentation then analyzed using Miles and Huberman model consisting of data reduction, data display, and conclusion. The results showed that: 1) the thinking process of the respondents with incorrect fuzzy thinking experienced a change. At first they were able to think correctly, but after the reflection, they were not able to explain correctly, so the answers did not reflect their understanding absolutely; 2)the thinking process of the respondents with correct fuzzy thinking experienced a change. At first they were not able to do the test correctly, but after the reflection, they were able to finish it correctly.

Creative Thinking Problems of Junior High School Students in Solving Geometry Problems of Transformation Class IX Fitriyani, Fitriyani; Kusno, Kusno
Proceedings Series on Social Sciences & Humanities Vol. 25 (2025): Proceedings of International Conference on Social Science (ICONESS)
Publisher : UM Purwokerto Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30595/pssh.v25i.1731

Creative thinking skills are important in learning mathematics. However, many students have difficulty thinking creatively, especially in the subject of transformation geometry. Initial observations at Putra Harapan Boarding School Junior High School Purwokerto show that most grade IX students have difficulty in showing aspects of fluency, flexibility, originality, and elaboration when solving transformation geometry problems. This study aims to analyze creative thinking problems in grade IX students in solving transformation geometry problems. The research method used was qualitative descriptive with the research subjects of three students selected based on the category of high, medium, and low initial ability with purposive sampling techniques. The research instruments were in the form of descriptive tests and semi-structured interviews. The data analysis technique uses triangulation. The results showed that students with high ability categories showed good creative performance formally, but experienced difficulties in the depth of conceptual thinking and originality of ideas. Students with moderate abilities have the potential for fluency and originality, but experience challenges in flexibility and elaboration of thinking. Students with low ability showed problems on all indicators of creative thinking. This study recommends the use of deep learning approaches to improve students' creative thinking skills.

Problematika Berpikir Kritis pada Materi Trigonometri berdasarkan dari Tingkat Math anxiet Musodiqoh, Ummu Atiyatul; Kusno, Kusno; Jaelani, Anton
Wahana Pendidikan Vol 12, No 2 (2025): Agustus 2025
Publisher : Universitas Galuh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25157/jwp.v12i2.18359

Penelitian ini bertujuan untuk menganalisis problematika berpikir kritis matematis peserta didik dalam memahami materi trigonometri ditinjau dari tingkat math anxiety yang mereka alami. Trigonometri sering menjadi salah satu materi yang menantang bagi peserta didik, terutama bagi mereka yang memiliki tingkat kecemasan matematika tinggi. Pendekatan kuantitatif dengan desain korelasional digunakan untuk memahami hubungan antara kecemasan matematika dan kemampuan berpikir kritis. Sampel penelitian terdiri dari 30 peserta didik kelas X di SMA N 1 Mesuji Raya. Data dikumpulkan melalui tes berpikir kritis matematis, angket math anxiety, serta wawancara semi-terstruktur. Hasil penelitian memperlihatkan bahwa peserta didik dengan tingkat kecemasan matematika yang rendah cenderung memiliki kemampuan berpikir kritis yang lebih baik dibandingkan mereka dengan kecemasan sedang atau tinggi. Semakin tinggi tingkat kecemasan matematika, semakin besar kesulitan yang dialami peserta didik dalam menginterpretasi informasi, menganalisis konsep, serta mengevaluasi hasil perhitungan dalam menyelesaikan soal trigonometri. Temuan ini menegaskan bahwa math anxiety dapat menjadi faktor penghambat dalam pengembangan berpikir kritis matematis peserta didik.

Co-Authors agustina setyaningrum, agustina Ahmad Ahmad Ahmad Kamsyakawuni Ahmad Sulaeman Ahmad Sulaeman Akhmad Jazuli Ansyari Siregar, Ahmad Anton Jaelani Astuti, Novi Darodjat Darodjat Darodjat, Darodjat Desi Afriani Desyandri Desyandri dianlestari Eka Setyaningsih Eka Setyaningsih Eka Setyaningsih Elsa Ajeng Fatmala Endang Murihani Faiz, Mohd Faozan, Dani Farah, Syafira Ibtisa Fatikhah, Findi Auliya Fitrianto Eko Subekti Fitriyani Fitriyani Furqon, Miftahul Gunawan Gunawan Gunawan Gunawan Gunawan Helmy Wahyu Widiarti Henik, Elsha Hermanto Hermanto Hidayati, Litsa Arfi Ika Septiani Putri, Ika Septiani Ivan Dwi Saputra, Ivan Dwi Saputra Jaka Wijaya Kusuma Jannah, Maya Jazuli, Akhamad Joko Purwanto Joko Purwanto Juliyanto, Bagus Kalman, Rinaldi Kiswara Agung Santoso Latifah Fitriana Rahmah Lawnia, Vika Lukmanul Akhsani M, Makhful Makhful Makhful Malim Muhammad Marsigit Marsigit Muhammad Naufal Mukarromah, Safitri Musodiqoh, Ummu Atiyatul Muvida Indah Kusuma Nainggolan, Randa Nalim Nanang Suparyono, Nanang Nur Hikmah Nurbaiti, Idhata Nurfitriani, Dian Ageng Pertiwi, Budi Wahyu Pratiwi, Yolanda Puji Astuti Putri, Nurika Heidianti Rahmah, Latifah Fitriana Restu Tera Astria RIKI RIKI, RIKI Ritonga, Muhammad Khairul Rusli Hidayat Safitri Mukarromah Setiyaningsih, Eka Sihombing, Rikky Pranata Siregar, Ahmad Ansyari Siregar, Putri Habibah Sri Ratnawati Sri Supiyati, Sri Triyana, Evi Widiarti, Helmy Wahyu Yusuf Nalim, Yusuf Zakiyah Zakiyah Zakiyah Zakiyah Zaskia Husna Maharani

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