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All Journal Jurnal Keteknikan Pertanian Jurnal Teknologi Pertanian Jurnal Elemen JRPM (Jurnal Review Pembelajaran Matematika) Adi Widya : Jurnal Pengabdian Masyarakat AGROTECH : JURNAL ILMIAH TEKNOLOGI PERTANIAN Jurnal Ilmiah Padma Sri Kreshna Jurnal PEKA (Pendidikan Matematika) Jurnal Pendidikan Matematika Indonesian Journal of Mathematics Education Hipotenusa: Journal of Mathematical Society Journal on Mathematics Education Media Pendidikan Matematika
Masrukan Masrukan
Universitas Widya Mataram
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Computer Science & IT Education Environmental Science Mathematics Social Sciences Other

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Pemecahan Masalah Persamaan Linear Ditinjau dari Kemandirian Belajar dengan Model Eliciting Activities (MEAs) Khumairo, Siti Latifatul; Masrukan; Isnarto
Jurnal Pendidikan Matematika Vol. 14 No. 2 (2023): July 2023
Publisher : Jurusan Pendidikan Matematika FKIP Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36709/jpm.v14i2.62

Abstract

Penelitian ini bertujuan untuk menguji keefektifan Model Eliciting Activities (MEAs) pada materi persamaan linear dan mendeskripsikan kemampuan pemecahan masalah matematis peserta didik ditinjau dari kemandirian belajar. Metode yang digunakan adalah metode campuran dengan desain eksplanatori sekuensial. Metode kuantitatif menggunakan desain penelitian Posttest Only Control Group Design, sedangkan kualitatifnya menggunakan analisis deskriptif. Dalam penelitian ini diambil 6 subjek penelitian berdasarkan tingkat kemandirian belajar peserta didik kelas VII D di SMP Negeri 1 Tayu tahun pelajaran 2022/2023. Teknik pengumpulan data berupa tes, angket, dan wawancara. Teknik analisis data dilakukan dengan reduksi data, penyajian data, dan penarikan kesimpulan. Hasil dari penelitian ini menunjukkan bahwa (1) pembelajaran MEAs pada materi persamaan linear efektif terhadap kemampuan pemecahan masalah peserta didik, dan (2) subjek penelitian dengan kategori kemandirian belajar tinggi mampu memenuhi semua indikator kemampuan pemecahan masalah, yaitu membangun pengetahuan baru melalui pemecahan masalah, memecahkan masalah dengan melibatkan matematika dalam konteks lain, menerapkan berbagai strategi yang tepat untuk memecahkan masalah, dan merefleksikan proses pemecahan masalah; subjek penelitian dengan kategori sedang hanya mampu memenuhi dua indikator kemampuan pemecahan masalah yakni membangun pengetahuan baru melalui pemecahan masalah dan merefleksikan proses pemecahan masalah; sedangkan subjek penelitian dengan kategori kemandirian belajar rendah tidak mampu mencapai indikator kemampuan pemecahan masalah dengan baik.
Bibliometric Analysis: Problem-Based Learning, Problem-Solving Skills, Self-Regulated Learning Assisted by Geogebra in Vocational High School Setyani, Arie; Masrukan; Kurniasih, Ary Woro
Indonesian Journal of Mathematics Education Vol. 8 No. 1 (2025): Indonesian Journal of Mathematics Education
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/ijome.v8i1.2274

Abstract

This study aims to analyze the bibliometric mapping of vocational high school mathematics research from 2020 to 2024 to address the research gap on problem-solving skills in the problem-based learning model assisted by GeoGebra, with a focus on students’ self-regulated learning in vocational high school. The data collected focuses on the keywords "mathematics, problem-solving, self-regulated learning, GeoGebra" to identify journals published between 2020 and 2024, using Google Scholar as the data source through Publish or Perish to gather data and Harzing's VOSviewer for bibliometric mapping. This study identified seven articles related to the keywords. The research follows the PRISMA systematic review method. The findings indicate that publications on problem-solving skills within the problem-based learning model assisted by GeoGebra, viewed from students' self-regulated learning in vocational high school, still have the potential to grow in the coming years. Moreover, problem-based learning positively impacts students' self-regulated learning and problem-solving skills in vocational high school.
Systematic Review: Kemampuan Representasi Matematika dalam Pendidikan Selama 2019-2024 Maulana, Bagus Surya; Junaedi, Iwan; Munahefi, Detalia Noriza; Masrukan; Cahyono, Adi Nur
Jurnal PEKA (Pendidikan Matematika) Vol. 8 No. 2 (2025): Jurnal PEKA (Pendidikan Matematika)
Publisher : Program Studi Pendidikan Matematika Universitas Muhammadiyah Sukabumi (UMMI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37150/jp.v8i2.3225

Abstract

Mathematical representation encompasses verbal, visual, and symbolic forms, allowing students to articulate and manipulate mathematical ideas effectively. The review indicates that students with strong representation abilities perform better academically, as these skills facilitate deeper comprehension and application of mathematical principles. A systematic review of mathematics representation ability in education during 2019-2024 in this study from 2019 to 2024, Data collection was carried out by reviewing or reviewing all articles on mathematics representation ability in education published in the period 2019-2024. The articles used in this study were 3 articles from Scopus, and 2 articles from Google Scholar from international and national journals with the help of Publish or Perish software and VOSViewer. The results of this literature review suggest that specific research needs to be conducted on how to improve mathematics representation abbility, the school levels tested, as well as their applicability in education.
Meta-Synthesis: The Influence of Mathematical Anxiety on Critical Mathematical Thinking Cahya, Nabella Dwi; Mariani, Scolastika; Agoestanto, Arief; Masrukan
JRPM (Jurnal Review Pembelajaran Matematika) Vol. 9 No. 1 (2024)
Publisher : Department of Mathematics Education, Faculty of Tarbiyah and Teacher Training, UIN Sunan Ampel Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15642/jrpm.2024.9.1.52-64

Abstract

The purpose of this research is to describe the influence of mathematics anxiety on students' mathematical critical thinking abilities. The research method used in this study was meta-synthesis, a qualitative systematic review that analyzed four relevant articles with the research title. The steps involved formulating the research problem, followed by searching for previous relevant research with the same title and then analyzing it in depth. The data collection technique used non-tests by examining previous research with similar problems to obtain results and conclusions. The study surveyed 4 articles, consisting of 3 national journal articles and one international journal article. The analysis of the four related articles resulted in the conclusion that math anxiety has a negative impact on students' mathematical critical thinking abilities.
Software Development of Palm Oil Seed Authentication System Based on Ultrasonic Waves Pratopo, Lukito Hasta; Thoriq, Ahmad; Ciptaningtyas, Drupadi; Nanda, Muhammad Achirul; Fahrizi, Ahmad Luthfi; Hidayat, Darmawan; Masrukan; Maskromo, Ismail
Jurnal Keteknikan Pertanian Vol. 13 No. 1 (2025): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.013.1.115-131

Abstract

Fake palm oil seeds pose a substantial economic threat, which makes their authentication crucial. However, distinguishing between genuine and fake seeds remains a challenge. This study explored the potential of ultrasonic technology to measure shell thickness as a distinguishing factor based on the reported variations between the two types. Ultrasonic wave measurement software was developed using Arduino Uno to facilitate the analysis. The results highlight the complexity of accurately measuring the seed shell thickness owing to high attenuation. Micro-CT imaging confirmed the presence of pores within the seed structure, which significantly scattered and absorbed ultrasonic waves, limiting the penetration depth and accuracy. Despite these obstacles, the developed software exhibited promising capabilities, accurately determining the thickness or propagation speed with a high-resolution time-of-flight measurement of up to 62.5 nanoseconds. Additionally, the software is capable of sampling ultrasonic signals at frequencies up to 178 kHz. Although the software performs well under specific conditions, further advancements in ultrasonic technology are necessary to mitigate porosity-related limitations and enhance the effectiveness of seed authentication methods, particularly in transducer selection and measurement techniques such as Harmonic or QSC testing.
How mathematical disposition shapes computational thinking in solving systems of linear equations: A flowchart-supported qualitative study Azizia, Ananda Jullailatul; Masrukan; Susilo, Bambang Eko; Arifuddin, Ahmad
Jurnal Elemen Vol 11 No 4 (2025): October
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/jel.v11i4.32082

Abstract

Computational thinking (CT) is a vital 21st-century skill in mathematics education, enabling students to solve problems systematically through decomposition, pattern recognition, abstraction, and algorithmic thinking. However, students’ mathematical disposition—encompassing beliefs, habits of mind, and affective tendencies—may significantly influence CT development. Guided by the affective–cognitive interaction model, this study aimed to explore how mathematical disposition shapes students’ CT skills, particularly in solving systems of three-variable linear equations using self-constructed, flowchart-supported algorithmic representations. A descriptive qualitative approach was adopted, with six students (two each from high, medium, and low disposition levels, identified via questionnaire) participating. Data collection involved a disposition scale, CT test, interviews, and documentation. Findings revealed that high-disposition students successfully demonstrated all CT indicators and produced coherent flowcharts. Medium-disposition students showed variability: some met all criteria, while others faltered in algorithmic design. Low-disposition students managed only basic decomposition and pattern recognition, with incomplete abstraction and fragmented flowcharts. These results suggest a strong link between affective factors and cognitive performance in CT tasks. Implications highlight the importance of integrating disposition-aware scaffolding—such as interactive visual tools and guided reflection—to support diverse learners and enhance CT development in mathematics classrooms.
Karakteristik Fisikokimia Mayonnaise Rendah Lemak Berbasis Isolat Protein Kedelai : Studi Formula Terbaik Berdasarkan Uji Hedonik Nursari, Elisa Tri; masrukan; Darmawan, Eman; Laswati, Dyah Titin
AGROTECH : JURNAL ILMIAH TEKNOLOGI PERTANIAN Vol. 7 No. 2 (2025): Agrotech: Jurnal Ilmiah Teknologi Pertanian
Publisher : Universitas Widya Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37631/agrotech.v7i2.2220

Abstract

Conventional mayonnaise is typically high in fat and cholesterol due to the use of oil and egg yolk as emulsifiers. This study aimed to develop a healthier alternative by formulating low-fat mayonnaise using soy protein isolate (SPI) as a plant-based emulsifier. The objective was to evaluate the physical and chemical properties of SPI-based mayonnaise selected through hedonic testing, and to compare it descriptively with a conventional sample (without SPI) and a commercial product. A Completely Randomized Design (CRD) was applied with five SPI concentrations: 0%, 1%, 2%, 3%, and 4%. Parameters observed included viscosity, texture, emulsion stability, color, pH, moisture, fat, and protein content. The 4% SPI formulation was identified as the most preferred based on sensory evaluation. Results showed that the 4% SPI sample had lower fat content (31.51%) and higher protein content (4.41%) than the reference samples. It also exhibited high viscosity (36,937.5 cP), good texture (0.094 N), excellent emulsion stability (96.80%), bright appearance (L=66.30; a=1.33; b=12.67), and a pH of 3.95. These findings suggest that SPI-based mayonnaise offers improved nutritional and physical qualities, making it a promising functional low-fat alternative favored by consumers.
Pengaruh Konsentrasi Gliserol Terhadap Karakteristik Fisik Dan Kimia Edible Film Dari Pati Ubi Jalar Ungu (Ipomoea batatas l. poir) Ndruru, Yuliana; Rukmini, Ambar; masrukan; Laswati, Dyah Titin
AGROTECH : JURNAL ILMIAH TEKNOLOGI PERTANIAN Vol. 7 No. 2 (2025): Agrotech: Jurnal Ilmiah Teknologi Pertanian
Publisher : Universitas Widya Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37631/agrotech.v7i2.2222

Abstract

Damage to fresh food such as fruits and vegetables due to exposure to air and humidity has become a common problem in the community. One innovative solution to maintain food quality is the use of starch-based edible films. This study aims to determine the effect of glycerol concentration on the physical and chemical characteristics of a starch-based edible film of purple sweet potato (Ipomoea batatas L.). The study was conducted using a Complete Random Design (RAL) with five treatments of glycerol concentrations of 6%, 8%, 10%, 12%, and 13% (v/b starch). The parameters tested include tensile strength, elongation, thickness, folding, moisture transmission rate (WVTR), and moisture content. The results showed that the increase in glycerol concentration had an effect on all the physical characteristics of edible films, except WVTR. Edible films with a glycerol concentration of 13% show the best characteristics with the highest elongation values (4.39%), highest folding (28 folds), thickness (0.07 mm), tensile strength (12.60 MPa), WVTR (0.02g/cm2.h) and moisture content (17.68%). Meanwhile, the best edible film chemical characteristics according to the 1995 SNI standard are at a glycerol concentration of 8% (15.77). Overall, all concentrations of purple sweet potato starch have met some of the standard parameters of commercial edible films. However, it still lags behind in terms of elongation, moisture content and tensile strength. However, this edible film has enough potential for use in small-scale or household packaging applications.
Aktivitas Antibakteri dan Karakteristik Edible Film dengan Penambahan Serbuk Daun Jati (Tectona grandis L.) Auliya, Ika Fathya Diva; Masrukan; Rukmini, Ambar; Laswati, Dyah Titin
AGROTECH : JURNAL ILMIAH TEKNOLOGI PERTANIAN Vol. 7 No. 2 (2025): Agrotech: Jurnal Ilmiah Teknologi Pertanian
Publisher : Universitas Widya Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37631/agrotech.v7i2.2223

Abstract

Edible film is a thin layer used to coat food or placed between food components, and it is consumable. This research aimed to assess the effect of adding teak leaf powder on the physical, chemical, and antibacterial properties of the edible film. The experiment was designed using a Completely Randomized Design (CRD), with teak leaf powder (J) as the independent variable. Four treatments were applied: J0 (0 g), J1 (0.25 g), J2 (0.50 g), and J3 (0.75 g) of teak leaf powder. Each formulation was tested for moisture content, thickness, tensile strength, elongation, water vapor transmission rate (WVTR), and antibacterial activity against environmental bacteria and Escherichia coli. The data obtained were analyzed using ANOVA followed by Tukey’s post hoc test at a significance level of α = 0.05. Physically, the addition of teak leaf powder increased the thickness of the edible film but decreased its tensile strength, elongation, and WVTR. The chemical parameter, moisture content, remained relatively stable across all treatments. In terms of antibacterial properties, the inhibition zone against environmental bacteria increased significantly. For Escherichia coli, no inhibition zone was observed in treatment J0, while treatments J1 to J3 demonstrated comparable antibacterial effectiveness.
Labu Kuning (Cucurbita moschata duchesne) Sebagai Pewarna dan Sumber Β-Karoten pada Mi Jagung Basah Lahudi, Hafid Bin; Rukmini, Ambar; Masrukan; Laswati, Dyah Titin
AGROTECH : JURNAL ILMIAH TEKNOLOGI PERTANIAN Vol. 7 No. 2 (2025): Agrotech: Jurnal Ilmiah Teknologi Pertanian
Publisher : Universitas Widya Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37631/agrotech.v7i2.2224

Abstract

Corn noodles are a gluten-free and high-fiber food product, but contain relatively low levels of β-carotene. To enhance their nutritional value and visual appeal, pumpkin puree (Cucurbita moschata Duchesne), known for its high β-carotene content and natural coloring properties, was added to the formulation. This study aimed to evaluate the effects of pumpkin puree addition on the physical, chemical, and organoleptic characteristics of wet corn noodles. A completely randomized design with one factor was used, comprising four treatment levels: 10%, 20%, 30%, and 40% pumpkin puree based on the total flour weight. The results showed that pumpkin puree significantly increased moisture contents and β-carotene levels (p<0.05), with the highest values found in formulation F4 (40%)—moisture contents of 65.40% and β-carotene of 287.07 µg/100 g (db). However, formulation F3 (30%) demonstrated the most balanced attributes, including bright colour (a = 4.41and b 22.77), optimal texture (cohesiveness 0.21 and adhesiveness 1.89), and the highest overall anelist preference score (overall score 3.0). Therefore, adding 30% pumpkin puree is the optimal formulation for producing wet corn noodles that are nutritious, visually appealing, and well accepted by consumers.
Co-Authors Adi Nur Cahyono Ahmad Arifuddin Ahmad Thoriq Alifah Irmawati Ambar Rukmini Annisa Aurelia Salsabila Arief Agoestanto Ary Woro Kurniasih Auliya, Ika Fathya Diva Azizia, Ananda Jullailatul Bahri Bambang Eko Susilo Bertina, Bernadeta Wiska Pramestia Cahya, Nabella Dwi Darmawan Hidayat Darmawan, Eman Drupadi Ciptaningtyas Dyah Titin Laswati Fahmi Rafika Perdana Fahrizi, Ahmad Luthfi Fiersta, Nissa Clara Firsta, Nissa Clara Gorotomole, M. Alamin Halim, Mansyur Ali Idra Faudu, Muhammad Iqbal Kharisudin Ismail Maskromo Isnarto Iwan Junaedi Jablonski, Simone Khumairo, Siti Latifatul Kristiana Sri Utami Kuntjahjawati SAR Lahudi, Hafid Bin Ludwig, Matthias Maulana, Bagus Surya Muhammad Achirul Nanda Mulyono Munahefi, Detalia Noriza Ndruru, Yuliana Nereroan, Yuliana Nur Purwandhani, Siti Nursari, Elisa Tri Oehler, Deng-Xin Ken Opsa Lena Pamungkas, Mieko Taqwa Pratopo, Lukito Hasta Purwadi, Dani Radika Widiatmaka Regilia, Dety Rukmi, Kuntjahjawati Susilo Adi SAR, Kuntjahjawati Scolastika Mariani Setyani, Arie Sri Lestari Harjanta Syarif Hakim, Isna Tunnisa, Fitra Umar Santoso Walid Wulandari, Enika YL Sukestiyarno Zaenuri