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All Journal Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati Union: Jurnal Ilmiah Pendidikan Matematika Pendas : Jurnah Ilmiah Pendidikan Dasar Journal of Physics and Its Applications Wahana : Tridarma Perguruan Tinggi Journal of Education and Learning Mathematics Research (JELMaR) Jurnal Wahana Pendidikan SCIENCE : Jurnal Inovasi Pendidikan Matematika dan IPA Eduprof
Susilo Hadi, Susilo
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Religion Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Nursing Physics Other

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Critical thinking of elementary school students in solving numeracy problems in terms of learning styles: Ashari, Dwi Alfan; Yustitia, Via; Hadi, Susilo; Wijaya, Tommy Tanu
UNION : Jurnal Ilmiah Pendidikan Matematika Vol 13 No 3 (2025): In Progress
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/union.v13i3.19585

Abstract

This study aims to describe students’ critical thinking abilities in solving numeracy problems in terms of four learning styles: activist, theorist, pragmatist, and reflector. A qualitative descriptive approach was employed, involving students who represent each learning style as classified by the Honey and Mumford model. Data were collected through numeracy tests and in-depth interviews to explore students' reasoning processes and critical thinking indicators. The findings indicate that students with an activist learning style tend to excel in the reasoning indicator, as they are able to explain their problem-solving strategies clearly and appropriately. However, their solutions often lack thoroughness, with some steps being overlooked. Students with a theorist learning style show strengths in the inference indicator, demonstrating the ability to provide logical explanations and clearly articulate cause-effect relationships. Those with a pragmatist learning style also lean towards the reasoning indicator, offering straightforward and practical explanations of their chosen strategies. Meanwhile, reflector-type learners display a preference for the inference indicator as well, outlining their steps but expressing uncertainty and hesitation in their answers. In conclusion, students’ critical thinking abilities in numeracy tasks are influenced by their learning styles, with each style showing a different emphasis on specific critical thinking indicators. This research contributes to the field by: (1) providing insights into the relationship between learning styles and critical thinking indicators in the context of numeracy; (2) informing educators on how to tailor instructional strategies to align with students’ learning styles in order to enhance critical thinking; and (3) offering a foundation for future studies aimed at developing numeracy-based learning tools that accommodate diverse learning preferences.
ANALISIS KESULITAN MAHASISWA DALAM PENGUASAAN KONSEP TURUNAN FUNGSI PADA MATA KULIAH KALKULUS SULISTYANINGTYAS, ANNISA DWI; WANTIKA, RESTU RIA; RAHAYU, SRI; HADI, SUSILO
SCIENCE : Jurnal Inovasi Pendidikan Matematika dan IPA Vol. 4 No. 4 (2024)
Publisher : Pusat Pengembangan Pendidikan dan Penelitian Indonesia (P4I)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51878/science.v4i4.4090

Abstract

Derivatives of functions are one of the teaching materials of the Calculus Course for the Electrical Engineering Study Program at PGRI Adi Buana University, Surabaya. This material is very important to study, especially for engineering students as a basis for mastering calculation concepts in subsequent courses. However, students still experience difficulties in mastering the concepts of the material and solving the questions given. The purpose of this research is to determine the level of difficulty students have in mastering the concept of derivative functions and to determine the causes of these difficulties. This research uses a descriptive qualitative method, where the researcher describes and explains in detail the problem of students' difficulties in studying derivatives of functions in the Calculus course. Data was taken from the results of the Quiz for students in the Electrical Engineering Study Program for the 2024/2025 academic year. The research results showed that 69% of students made Principle Errors (KP) and 32% made Calculation Errors (KH). So, it can be concluded that most students cannot remember existing rules, formulas or theorems and identify material concepts. Furthermore, it is hoped that the results of this research can be used as a basis for improving Calculus I learning, so that learning is more interesting and students are more enthusiastic in participating in the learning. ABSTRAKTurunan fungsi merupakan salah satu materi ajar dari Mata Kuliah Kalkulus bagi Program Studi Teknik Elektro di Universitas PGRI Adi Buana Surabaya. Materi tersebut sangat penting untuk dipelajari, khususnya bagi mahasiswa teknik sebagai dasar penguasaan konsep perhitungan di mata kuliah selanjutnya. Namun, mahasiswa masih merasakan kesulitan dalam penguasaan konsep materi dan penyelesaian soal yang diberikan. Tujuan penelitian ini adalah untuk mengetahui tingkat kesulitan mahasiswa dalam menguasai konsep turunan fungsi dan mengetahui penyebab dari kesulitan tersebut. Penelitian ini menggunakan metode kualitatif deskriptif, dimana peneliti menggambarkan dan menjelaskan secara rinci permasalahan kesulitan mahasiswa dalam mempelajari turunan fungsi pada Mata Kuliah Kalkulus. Data diambil dari hasil Quis mahasiswa Program Studi Teknik Elektro tahun akademik 2024/2025. Hasil penelitian menunjukkan bahwa 69% mahasiswa melakukan Kesalahan Prinsip (KP) dan 31% melakukan Kesalahan Hitung (KH). Sehingga dapat ditarik kesimpulan bahwa sebagian besar mahasiswa tidak dapat mengingat aturan, rumus, atau teorema yang ada dan mengidentifikasi konsep materi. Selanjutnya, hasil penelitian tersebut diharapkan dapat dijadikan dasar untuk perbaikan pembelajaran Kalkulus, sehinggan pembelajaran lebih menarik lagi dan mahasiswa lebih antusias dalam mengikutin pembelajaran tersebut.
Hubungan antara Prokrastinasi Akademik dengan Hasil Belajar Matematika Siswa Hadi, Susilo
Eduprof : Islamic Education Journal Vol. 5 No. 1 (2023): Eduprof : Islamic Education Journal
Publisher : Program Pascasarjana, Universitas Islam Bunga Bangsa Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Prokrastinasi akademik adalah perilaku menunda dalam menuntaskan sebuah tugas yang berkorelasi dengan akademik sehingga mengakibatkan keterlambatan dalam menyerahkan tugas bahkan mengalami kegagalan dalam menyelesaikannya. Seseorang yang mempunyai kebiasaan melakukan prokrastinasi akademik biasanya tidak bisa mengolah waktu dengan baik. Oleh sebab itu dibutuhkan usaha untuk menghindari terjadinya prokrasinasi akademik dengan cara memperbaiki pengelolaan waktu. Penelitian ini memiliki tujuan untuk mendeteksi hubungan antara prokrastinasi akademik dengan hasil belajar matematika siswa. Pada penelitian ini metode yang digunakan yakni kuantitatif korelasional. Populasi penelitian ini adalah seluruh siswa kelas X SMA Al-Islam Krian. Untuk pengambilan sampel dalam penelitian ini menggunakan cluster random sampling dan diperoleh kelas X IPS 3 sebagai sampel penelitian. Teknik pengumpulan data menggunakan skala prokrastinasi akademik dan tes hasil belajar matematika siswa. Analisis data dengan menggunakan pengujian korelasi Product Moment Person dengan uji prasyarat memakai uji normalitas dan uji linearitas. Dari hasil analisis data, hipotesis yang berbunyi “terdapat hubungan yang negatif dan signifikan antara prokrastinasi akademik dengan hasil belajar siswa” diterima. Dengan kata lain dapat diartikan bahwa semakin tinggi prokrastinasi akademik maka semakin rendah hasil belajar matematika siswa. Begitu pula sebaliknya jika prokrastinasi akademik rendah maka semakin tinggi hasil belajar matematika siswa
Natural Dye as an Alternative to Hematoxylin-Eosin Staining on Histological Preparations Karlina, Ina; Pusparini, Nur Ainun Oktavia; Maharesi, Chesa Ekani; Saeed, Faisal; Retnoaji, Bambang; Saragih, Hendry; Septriani, Nur Indah; Rohmah, Zuliyati; Hadi, Susilo; Nuriliani, Ardaning
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 10, No 2 (2025): June 2025
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v10i2.7909

Abstract

Hematoxylin-eosin is widely utilized in the field of animal microtechniques. However, the need to develop alternative dyes from natural sources such as plants has gained attention. Several studies have shown that many plants contain secondary metabolites with the potential to be developed as natural dyes. Lonchocarpus cyanescens and Syzygium cumini are promising candidates as alternative dyes for hematoxylin, while Lawsonia inermis and Hibiscus sabdariffa have shown potential as substitute dyes for eosin. These plants contain various secondary metabolites, including anthocyanins, flavonoids, chlorophyll, betalains, alkaloids, saponins, tannins, carbohydrates, proteins, phenolics, terpenoids, quinones, coumarins, xanthones, and resins. L. cyanescens exhibits a strong binding affinity to cells and tissues, particularly testicular tissue. Dyes derived from Syzygium cumini have been shown to provide a good staining result for rat liver cells. In contrast, dyes from Lawsonia inermis can stain cytoplasmic components and muscle fibers. Additionally, the dye from Hibiscus sabdariffa is capable of staining various biological components, including sperm, nerve cells, and blood cells. The dye preparation process involved extraction from different plant organs, such as leaves, flowers, and fruit. These findings suggest that secondary metabolites from these four plants hold significant potential for development as natural dyes to replace hematoxylin-eosin in histological applications.
ANALISIS KESALAHAN SISWA DENGAN KEMAMPUAN TINGGI DALAM MENYELESAIKAN SOAL NUMERASI BERDASARKAN KEMAMPUAN MATEMATIKA Nadhiroh, Alik; Yustitia, Via; Hadi, Susilo
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 10 No. 01 (2025): Volume 10, Nomor 01 Maret 2025
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v10i01.23156

Abstract

Numeracy is a student's ability in counting skills, be it counting lessons, simple counting, and measuring activities that exist in daily life. In addition, numeration skills can be used as capital for students in mastering other subjects. This research aims to describe the types of mistakes that students often make in solving numeracy problems and analyse the relationship between those errors and students' mathematical abilities. The type of research used is a qualitative research subject for class IV students of the Odd semester 2024/2025. The time of the implementation of this research was carried out in the year 2024. Test data collection techniques, interviews and documentation. The technique used in this study is purposive sampling which is used in selecting 3 students as subjects. Subject selection is chosen based on the student's results in doing numeration problems from high, medium and low categories. The instruments in this study used a math ability test and a numeration test. The data analysis methods used are data collection, data condensation, data presentation and drawing conclusions. Based on the results of the research that has been conducted seen from the aspect of mathematical ability, the following are errors from each subject: (1) Subjects with high mathematical ability make 1 type of error, namely errors in understanding the problem (2) Subjects with mathematical ability are making 3 types of errors in understanding the problem, process errors and errors in writing answers (3) Subjects with low mathematical ability make 5 types of process errors, answer writing errors are found in questions number 1 and 2, transformation errors, reading errors. Students' mathematical ability and numeration skills have a highly correlated and positively related relationship which explains that the higher the student's mathematical ability, the higher the student's numeral ability.
PENGARUH MODEL PROBLEM BASED LEARNING BERBANTUAN POP UP BOOK 3D TERHADAP NUMERASI SISWA KELAS VI SEKOLAH DASAR Faizah, Mulayyinah Muthi'atul; Yustitia, Via; Hadi, Susilo
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 10 No. 01 (2025): Volume 10 Nomor 1, Maret 2025
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v10i01.23162

Abstract

This research is motivated by the fact that students' numeracy skills in Indonesia are still low. This is proven by the 2018 PISA Indonesia graph. So there are still many students who do not understand numeracy literacy. Therefore, currently the priority is improving students' literacy and numeracy skills. The aim of this research was to determine whether there was an influence of the problem based learning model assisted by the 3D Pop Up Book on the numeracy of class VI elementary school students. This research uses a quantitative approach in the form of a quasi experimental design which uses a posttest only control design research design. by using two classes, namely the experimental class and the control class. The population in this study was 50 students, the sample was 25 students, the research method used side random clusters. The data collection method in this research is a test. Using statistical analysis methods with a formulation that is in accordance with the research title, namely the Effect of the Problem Based Learning Model Assisted by 3D Pop Up Books on Numeracy in Class VI Elementary School. A posttest only control design was used, then the T-test used SPSS version 25. Based on the research results, the T-test showed a sig (2-tailed) or p-value of 0.000 0.05, which means less than 0.05. So it can be concluded that Ho is rejected and Hi is accepted. Thus, it can be concluded that there is an influence of the Problem Based Learning Model Assisted by 3D Pop Up Books on the Numeracy of VI Elementary School Students
Ethnomathematics comics of Al-Akbar Mosque: Enhancing elementary students' understanding of geometric shapes Oktavia, Aulia Ika Aulia; Yustitia, Via; Hadi, Susilo; Wijaya, Tommy Tanu
UNION : Jurnal Ilmiah Pendidikan Matematika Vol 13 No 1 (2025)
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/union.v13i1.19231

Abstract

Learning is evolving rapidly in the 21st century, as evidenced by advancements in science and technology (IPTEK), including the use of comics as a medium for learning mathematics. The incorporation of ethnomathematics comics based on the architectural features of Masjid Al-Akbar Surabaya serves as an innovative learning tool to address issues such as unengaging media and students’ reluctance to learn mathematics. This study aims to: (1) examine the process of developing ethnomathematics comics about the Al-Akbar Mosque of Surabaya to help elementary school students recognize the names and characteristics of geometric structures; (2) assess the feasibility of these comics as a learning medium; and (3) analyze teachers' and students' responses to their implementation in the classroom. This study employs a research and development (R&D) approach using the ADDIE development model, which consists of four stages: analysis, design, development, and implementation. Data collection methods include documentation, surveys, observations, interviews, and literature reviews, while data analysis combines qualitative descriptive and quantitative techniques based on expert validation and Likert-scale responses. The results indicate that (1) the three initial stages of the research process—analysis, design, and development—were successfully carried out according to the established framework; (2) validation data from material experts, linguists, and learning media specialists rated the comics as "highly feasible"; and (3) responses from class II-A teachers, expert teachers, and four class II-A students also confirmed a "highly feasible" rating. These findings suggest that the developed ethnomathematics comics based on the Al-Akbar Mosque are effective and appropriate for elementary school students in learning about geometric structures. This research contributes to mathematics education by integrating ethnomathematics into instructional media, fostering cultural appreciation while enhancing students' understanding of geometric concepts. Additionally, it provides a structured framework for developing ethnomathematics-based learning resources that can be adapted to other cultural and architectural contexts.
Co-Authors Ardaning Nuriliani Asep Yoyo Wardaya Ashari, Dwi Alfan Bambang Retnoaji Cahyani, Arum Evi Setiawati Faizah, Mulayyinah Muthi'atul Hartono Hartono Izzaroh, Iftitakhul Jatmiko Endro Suseno Jusup Subagja, Jusup Karlina, Ina Lydia Lia Prayitno, Lydia Lia Maftuh, Moch Syukron Maharesi, Chesa Ekani Nadhiroh, Alik Ninik Mutianingsih, Ninik Oktavia, Aulia Ika Aulia Prajitno, Sunyoto Hadi Pusparini, Nur Ainun Oktavia Rachmadtullah, Reza Rohmah, Zuliyati Saeed, Faisal Saragih, Hendry Septriani, Nur Indah SRI RAHAYU SUDARMAJI SUDARMAJI Sugandi, Eko Sulistyaningtyas, Annisa Dwi Via Yustitia Wantika, Restu Ria Wijaya, Tommy Tanu Windarta, Jaka Zaenul Muhlisin