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All Journal Humaniora JPMS (Jurnal Pendidikan Matematika dan Sains) MATEMATIKA Journal of Education and Learning (EduLearn) AdMathEdu : Jurnal Ilmiah Pendidikan Matematika, Ilmu Matematika dan Matematika Terapan Jurnal Infinity Kreano, Jurnal Matematika Kreatif-Inovatif Rekayasa: Jurnal Penerapan Teknologi dan Pembelajaran Jurnal Filsafat Journal of Educational Science and Technology AlphaMath: Journal of Mathematics Education Educational Management Jurnal Filsafat International Journal on Emerging Mathematics Education Jurnal Tadris Matematika Jurnal Cendekia : Jurnal Pendidikan Matematika Unnes Journal of Mathematics Education Research Journal of Primary Education Proximal: Jurnal Penelitian Matematika dan Pendidikan Matematika INOPENDAS: Jurnal Ilmiah Kependidikan Kognitif: Jurnal Riset HOTS Pendidikan Matematika Unnes Journal of Mathematics Education Unnes Journal of Mathematics Prosiding Seminar Nasional Pascasarjana Proceeding of International Conference on Science, Education, and Technology Jurnal Infinity Jurnal Tadris Matematika

Hardi Suyitno

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Author-ID : 398151

Religion Arts Humanities Computer Science & IT Decision Sciences, Operations Research & Management Education Engineering Languange, Linguistic, Communication & Media Library & Information Science Mathematics Social Sciences Other

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Articles

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The development of geometry concepts understanding based on NCTM reference in learning using discovery learning model Suyitno, Hardi; Utami, Eka Nurul; Veronica, Rahayu Budhiati
Unnes Journal of Mathematics Education Vol 8 No 1 (2019): Unnes Journal of Mathematics Education
Publisher : Department of Mathematics, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/ujme.v8i1.28683

Mathematics Concepts Understanding is an important foundation for solving mathematical and everyday problems. In reality, studentsâ€™ mathematics concepts understanding are not optimal. Learning based on NCTM standard is effective to help students in understanding mathematics material. Discovery Learning is suitable to be used to understand the development of students' conceptual understanding of geometry. The purpose of this study was to find out the development of geometry concepts understanding in Discovery Learning. The research was qualitative. The subjects of this study were 6 students. The 2 subjects were selected for each upper, middle and lower class based on the results of the initial test of understanding geometric concepts in one of the seventh grade in a junior high school in Rembang which had previously been ranked.The results showed that (1) both U-12 and U-17 subjects were able to fulfill all indicators of understanding geometry concepts 1 to 7 very well, (2) the two middle-class research subjects were U-19 subjects and U-24 have been able to fulfill all indicators of understanding geometric concepts well, (3) the two lower class research subjects namely U-30 and U-10 were finally able to fulfill all indicators of understanding geometric concepts from 1 to indicator 7 even though they were not good and rather slow compared to the upper and lower groups. They still experienced some difficulties, especially in the indicators of understanding the 4th, 5th and 7th concepts.

OPTIMASI KEUNTUNGAN PAKAIAN DENGAN ALGORITMA TITIK INTERIOR (STUDI KASUS PADA PD. SIDO MUMBUL) SA'ADAH, ALFIATUS; Suyitno, Hardi; Dwijanto, Dwijanto
Unnes Journal of Mathematics Vol 6 No 1 (2017)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/ujm.v6i1.11956

Abstrak Penelitian ini bertujuan untuk mengetahui komposisi jumlah dari masing-masing produk pakaian yang harus diproduksi sehingga dapat memaksimumkan keuntungan PD. Sido Mumbul. Data yang diperoleh dalam penelitian ini berupa data primer dan data sekunder. Hasil perhitungan dengan Algoritma Titik Interior yang dibulatkan dengan Metode Branch and Bound menunjukkan keuntungan optimal sebesar Rp. 21,794,060.00 dengan memproduksi celana CA 018 sebanyak 3188 unit, celana CA 042 sebanyak 1800 unit, celana CA 052 sebanyak 3600 unit, dan popok PPK 02 sebanyak 7200 unit. Perhitungan keuntungan dengan Algoritma Titik Interior diperoleh keuntungan sebesar Rp. 21,794,060.00 dan perhitungan keuntungan yang dilakukan oleh PD. Sido Mumbul memperoleh keuntungan sebesar Rp. 20,606,400.00, selisih perhitungan keuntungan dengan Algoritma Titik Interior dan perhitungan yang dilakukan oleh PD. Sido Mumbul terpaut sebesar Rp. 1,187,660.00. Ini menunjukkan keuntungan yang diperoleh PD. Sido Mumbul belum optimal. Abstract This research was aimed to get the total composition of each clothes-product that must be produced, so that it can maximize the profit of PD. Sido Mumbul. The data that was gotten in this research were the primary and the secondary data. The result of calculation using Interior Point Algorithm with Branch and Bound method showed the optimal profit to the amount of 21,794,060.00 IDR by producing 3188 units of shorts CA 018, 1800 units of shorts CA 042, 3800 units of shorts CA 052, and 7200 units of PPK 02. The profit calculation using Interior Point Algorithm was 21,794,060.00 IDR and the calculation of PD. Sido Mumbul was 20,606,400.00 IDR, the ratio profit calculation using Interior Point Algorithm compared with the calculation by PD. Sido Mumbul was up 1,187,660.00 IDR. The showed the profit gotten by PD. Sido Mumbul had not been optimal.

Mathematical problem solving ability of 8th grade students in terms of adversity quotient using discovery learning Istiqomah, Sayidah Nur; Suyitno, Hardi; Safa'atullah, Muh. Fajar
Unnes Journal of Mathematics Education Vol 10 No 2 (2021): Unnes Journal of Mathematics Education
Publisher : Department of Mathematics, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/ujme.v10i2.31699

The purpose of this research was to (1) find out the completeness of mathematical problem-solving abilities of 8th-grade students in Discovery Learning; (2) description of mathematical problem-solving abilities aspects of 8th-grade students who have a climbers types; (3) description of mathematical problem-solving abilities aspects of grade 8th students who have a campers types; (4) description of mathematical problem-solving abilities aspects of 8th-grade students who have a quitters types. This research is mixed methods using a sequential explanatory model. The design is a one-shot case study. The sample class is 8D. Research subjects consisted of 2 students of climbers types and 4 students of climbers types. The results showed that (1) mathematical problem-solving abilities of 8th-grade students in Discovery Learning achieved classical and individual completeness; (2) climbers students can solve all of the problem-solving indicators; (3) ) campers students can solve three of problem-solving indicators; (4) quitters students were not found in this research so couldn’t be described.

Mathematical communication ability of 7th grade students viewed from indonesian language ability in experiential learning model Sari, Intan; Suyitno, Hardi
Unnes Journal of Mathematics Education Vol 8 No 2 (2019): Unnes Journal of Mathematics Education
Publisher : Department of Mathematics, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/ujme.v8i2.32451

Communication ability need to be improved so that students can solve math problems well. This study aims to determine 1) the completeness of learning mathematics communication 7th grade students with experiential learning models; 2) the influence of Indonesian language ability on mathematical communication ability; 3) mathematical communication ability of students who have very high Indonesian language ability; 4) mathematical communication ability of students who have high Indonesian language ability; 5) mathematical communication ability of students who have medium Indonesian language ability. This study uses a combination method. The population in this study is 7th grade students in one of the junior high schools in the city of Semarang year 2018/2019. Sampling by random sampling technique and subject selection with purposive sampling technique. The results show that (1) mathematical communication ability of 7th grade students with experiential learning models can achieve learning completeness; (2) there is an influence of Indonesian language ability on students' mathematical communication ability in the experiential learning model; (3) students with very high Indonesian language ability have been able to reach all indicators of written communication ability; (4) students with high Indonesian language ability have been able to reach all indicators of written mathematical communication ability even though there are still errors in making conclusions; (5) students with medium Indonesian language ability are only able to master two indicator of written mathematical communication ability.

Penerapan Sistem Inferensi Fuzzy Metode Mamdani untuk Penentuan Jumlah Produksi Eggroll Purwandito, Rizky; Suyitno, Hardi; Alamsyah, Alamsyah
Unnes Journal of Mathematics Vol 8 No 1 (2019)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/ujm.v8i1.15745

Penelitian ini mengkaji tentang Sistem Inferensi Fuzzy Metode Mamdani dalam permasalahan penentuan produksi eggroll dengan variabel: permintaan, pesediaan dan produksi. Dalam penelitian ini terdapat empat langkah untuk menentukan jumlah produksi eggroll dengan metode Mamdani, yaitu: mendefinisikan variabel fuzzy (fuzzyfikasi), inferensi fuzzy dengan 9 aturan fuzzy, komposisi aturan dan defuzzifikasi. Pada penelitian ini dirancang sebuah sistem dalam penentuan produksi menggunakan bahasa PHP. Dalam pembuatan aplikasi sistem penentuan produksi dikembangkan dengan metode waterfall, dengan proses analisis kebutuhan sistem, desain sistem, pengkodean dan pengujian sistem. Aplikasi dibuat dengan menyesuaikan kebutuhan admin, pegawai dan distributor. Metode penelitian meliputi tahap penelitian, tahap pengumpulan data, tahap pengembangan sistem dan tahap penarikan kesimpulan. Pada proses perhitungan menggunakan metode Mamdani, data yang diambil adalah data pada bulan desember 2016 yaitu data permintaan dan persediaan sebanyak 2400 dus dan 260 dus. Berdasarkan metode Mamdani, banyaknya eggroll yang harus diproduksi adalah maksimal 2235 dus.

Development process of mathematical representation ability and cultural love on RME learning using Wayang Kulit Lukmana, Chandra Prasetia; Suyitno, Hardi; Zaenuri, Zaenuri
Unnes Journal of Mathematics Education Vol 10 No 2 (2021): Unnes Journal of Mathematics Education
Publisher : Department of Mathematics, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/ujme.v10i2.49484

The development of science and technology in the current era of globalization can have a positive and negative impact on human life. Mathematical ability and cultural love need to be possessed by students. The methodology applied the qualitative method and collecting data using a written test and interview. This study used media wayang kulit with RME learning model applied to grade VII students SMP. The ability of mathematical representation in schools is less developed by subject teachers. Conventional learning results in students only being able to have the mathematical representation capabilities provided by the teacher. The process of developing a student's mathematical representation consists of the initial activity with sample observations and finding the concept of matter. Then students look at various examples and discover the concept of matter. When faced with problems, students can go through the stages of identifying problems, developing plans for the use of representation, and the use of representations to solve problems or communicate ideas they have. The cultural love that the students have during the learning process is described as finding the material concept. But when faced with a choice between the use of traditional media and technology, students prefer to use the media technology.

PENGOPTIMALAN RUTE DISTRIBUSI PRODUK TISU DI CV MAPLE SEMARANG DENGAN MENGGUNAKAN METODE SAVING MATRIX DAN NEAREST INSERTION Suparmi, Suparmi; Suyitno, Hardi; Rosyida, Isnaini
Unnes Journal of Mathematics Vol 9 No 2 (2020)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/ujm.v9i2.37849

Distribusi merupakan salah satu aspek penting dalam pemasaran. Permasalahan distribusi termasuk dalam permasalahan Capacitated Vehicle Routing Problem (CVRP). CVRP dapat diselesaikan dengan beberapa metode diantaranya adalah metode saving marix dan nearest insertion. Tujuan dalam penelitian ini adalah menganalisis penyelesaian rute pendistribusian tisu dari depot ke pelanggan dan kembali ke depot dengan menggunakan metode saving matrix dan nearest insertion. Pencarian rute tersebut dilakukan secara hitung manual, selanjutnya akan ditentukan keefektifan dari penggunaan kedua metode tersebut. Pengambilan data dilakukan dengan metode observasi dan wawancara secara langsung dan menggunakan google maps untuk menentukan jarak dari depot/distributor CV Maple Semarang ke pelanggan-pelanggan. Dari penelitian ini solusi dengan menggunakan metode saving matrix diperoleh jarak minimal sebesar 63,8 km dan metode nearest insertion diperoleh jarak minimal sebesar 60,5 km. Dengan demikian dapat disimpulkan bahwa rute yang terbentuk dengan metode nearest insertion lebih efektif dibandingkan dengan menggunakan metode saving matrix. Distribution is an important aspect of marketing. Distribution problems are included in the Capacitated Vehicle Routing Problem (CVRP) problem. CVRP can be solved by several methods including the saving matrix and nearest insertion methods. The purpose of this study was to analyze the completion of tissue distribution routes from the depot to the customer and return to the depot using the saving matrix and nearest insertion methods. The seeking for the route is done manually, then the effectiveness of the two methods will be determined. Data collection is done by direct observation and interview methods and using google maps to determine the distance from the depot/distributor CV Maple Semarang customers. From this study the solution using the saving matrix method obtained a minimum distance of 63.8 km and the nearest insertion method obtained a minimum distance of 60.5 km. Thus it can be concluded that the route formed by the nearest insertion method is more effective than using the saving matrix method.

PENGOLAHAN LIMBAH KULIT DURIAN DI WILAYAH GUNUNGPATI MENJADI BIOPESTISIDA YANG RAMAH LINGKUNGAN Kusumaningtyas, Ratna Dewi; Suyitno, Hardi; Wulansarie, Ria
Rekayasa : Jurnal Penerapan Teknologi dan Pembelajaran Vol 15, No 1 (2017): Juli 2017
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/rekayasa.v15i1.12576

Gunungpati Sub-district, Semarang is a special durian fruit producing region. One of the negative impacts of the existence of durian center in Gunungpati area is the volume of garbage leather durian accumulate. To overcome that problem, there needs to be innovation in durian skin waste management by involving the public so that durian leather waste can be utilized to be a product of economic value. One of the potential durian skin is the high essential oil content. Durian leather essential oil contains flavonoid compounds, saponins, and polyphenols that are toxic to pests and mosquitoes that can be utilized to be environmentally friendly vegetable pesticides. Therefore, to overcome the problem of high durian leather garbage volume, it is necessary to conduct commu- nity service activities aimed at providing knowledge to the community about how to increase added value for durian leather waste and provide skills to the community about how to process durian leather waste into biopesticides. In order to achieve the goals and objectives, this community service is carried out through several stages. The first phase is coordination with community leaders and lo- cal government, the second stage is the socialization to partners about the negative impact of durian leather waste and giving material about the potential of durian leather. The second stage is training to provide skills to the partner community on how to process durian leather waste into biopesticides. The third stage is the training activity of the application of biopesticide waste durian skin on the plant. The fourth phase of the activity is monitoring and evaluation. The final stage of this devotional activity is the making of reports and dissemination of devotion through scientific publication. In addition to positive impact on environmental hygiene, community service activities are also useful for empowering the economy of society to be independent and have the spirit of entrepreneurship through the innovative skills of making eco-friendly biopesticides from waste durian.

Developing Assessment Instrument as a Mathematical Power Measurement Imam Kusmaryono; Hardi Suyitno; Dwijanto Dwijanto; Nurkaromah Dwidayati
Journal of Education and Learning (EduLearn) Vol 12, No 3: August 2018
Publisher : Intelektual Pustaka Media Utama

This was a field research (literature review and exploration) with descriptive quantitative approach. This study aims: (1) to develop a model (scheme) to assess mathematical power, (2) to test the validity of instruments of mathematical power assessment, and (3) to developa valid and reliable test and non-test instrument prototypes as a mathematical power measurement. The research instruments consist of 4 items of essay test, 20 sheets of observation on investigative activities, and 20 items of questionnaires. Validity test was conducted through constructions built up from 3 aspects of mathematical power ability. Result of instrument analysis showed that: (1) the r of instrument test = 0.947, meaning that the instrument is reliable, (2) the r of activity observation sheets = 0.912, meaning that the instrument is reliable, and (3) the r of questionnaires = 0.770, meaning that the questionnaire is reliable on 0.05 significance level. This study concludes: (a) the steps in the model (scheme) of mathematical power assessment may be used as a reference for assessing mathematical power, (b) test and non-test instruments are valid and reliable, and (c) prototypes of test and non-test instruments may be used as a measurement in mathematical power assessment.

The Use Of 3CM (Cool-Critical-Creative-Meaningful) Model In Blended Learning To Improve Creative Thinking Ability In Solving Mathematics Problem Wahyudi Wahyudi; Budi Waluya; Hardi Suyitno; Isnarto Isnarto
Journal of Educational Science and Technology (EST) Volume 5 Number 1 April 2019
Publisher : Universitas Negeri Makassar

This study aims to describe and test the effectiveness of 3CM learning model with blended learning to improve students' creative thinking ability in solving mathematic problems. A pre experimental design with one group pre-test post-test design pattern was applied in this study. Creative thinking ability is measured by test technique and then in triangulation with observation and interview. Students were given a test, observed when solving the problem, and interviewed based on the answers given. To see the effectiveness of 3CM learning with blended learning done with paired T test with assisted with SPSS program then triangulated with observation and interview. Based on the test results, it obtained the average pre-test 60.51 and post-test 75.96. Result of paired T tests, test got sig value. (2-tailed) 0.000 means there was a significant difference between pre-test and post-test results. It indicated that 3CM learning with blended learning effectively improves students' creative thinking ability in solving problems. This happened because learning gives students the opportunity to think systematically by beginning by criticizing the interesting contextual problems and ending with meaningful reflection with adequate learning resources both when face-to-face and online.

Co-Authors Abrar Abira Afit Istiandaru, Afit Agus Jaenudin Ainur Rifqi, Ainur Alamsyah - Ali Djamhuri Alifani, Shabrina Mei Andes Safarandes Asmara, Andes Safarandes Ani Rusilowati Apriliani, Laely Rohmatin Ardhi Prabowo Ardiyanti, Yusi Arief Agoestanto Arief Agoestanto Arifin, Mustofa Asih, Tri Sri Noor Aula, Maulida Fatma Reza Bambang Eko Susilo Budhiharti, Susi Juwita Budi Waluya Cahyani, Hesti Darmo, Darmo Deni Kurniawan, Deni Dewi, Nuriana Rachmani Dwijanto Dwijanto Dwijanto Dwijanto Dwijanto Dwijanto Dwijanto Dwijanto Dwijanto Dwijanto Dwijanto Dwijanto, Dwijanto Dwijanto, Dwijanto Endang Susilaningsih Etik Rahayu Farizal, Thesa Febriyana, Dyah Hairunnisah, Hairunnisah Hartati, Tri Lusi Hastuti, Wijaning Herdini, Resty Ayu Huda, Wafiq Nurul Imam Kusmaryono Imam Sayekti Intan Sari Iqbal Kharisudin Ismawati, Arfina Maya Isnaini Rosyida, Isnaini Isnarto Isnarto Isnarto Isnarto Isnarto Isnarto Isnarto Isnarto Isnarto, Isnarto Isti Hidayah Istiqomah, Sayidah Nur Iwan junaedi Iwan Junaedi Juhrani, Juhrani Junaidi, Iwan Kadarsono, Mohamad Karsim, Karsim Kartono - Kartono, Kartono Karyadi Karyadi Khumaedi - Kurniawati, Fita Lita Latiana Lukmana, Chandra Prasetia Mashuri Mashuri Maulida, Azwida Rosana Mohammad Asikin Mufida, Aina Muhammad Rizqi Mujib Mujib Mulyono Mulyono nastiti, Muji Nino Adhi, Nuriana Rachmani Dewi Nio, Tan Hian Nitasari, Ayu Nugraha, Arief Juang Nugroho, Ahmad Munif Nurkaromah Dwidayati, Nurkaromah Nuryadi Nuryadi Oktaviani, Rinta Palupi, Hanifah Raras Pratiwi, Danny Priambada, Miko Probosiwi, Wdyanita Indah Purwandito, Rizky Putut Marwoto Qudwatullathifah, Ratri Nuryani Rahmawati, luthfiana Ratna Dewi Kusumaningtyas Ria Wulansarie, Ria Rick Hunter Simanungkalit, Rick Hunter Riyadhotul Janah, Siti Riza Arifudin Rizqi, Afria Alfitri Rochmad - SA'ADAH, ALFIATUS Sabrina, Ahlam Safa'atullah, Muh. Fajar Saiful Ridlo Sapto, Argiyanto Dwi Sapto, Argiyanto Dwi SATRIYAS ILYAS Scolastika Mariani Setiawan, Fajar Tri Setyawan, Fariz Sholihah, Fitrotus Siti Makhmudah St. Budi Waluya Sudarmin Sudarmin Sugiman Sugiman Sukestiyarno Sukestiyarno Sukestiyarno Sukestiyarno Suparmi Suparmi Supriyadi Supriyadi Supriyono Supriyono Suryono, Wiwik Ariyani Susanto, Febri Tiara Yulita Ula Himatul Aliyah Ula Himatul Aliyah umi arifah, umi Utami, Eka Nurul Veronica, Rahayu Budhiati Vita Istihapsari Vita Istihapsari Vita Istihapsari, Vita Wahyudi Wahyudi, Rachmat Satrio Wahyuningtyas, Febriana Wardono Wardono Widiyaningsih, Budi Wiyanto - Y. L. Sukestiyarno Y. L. Sukestiyarno Y.L Sukestiyarno YL Sukestiyarno Yulianto, Agus Wayan Yusfita Yusuf Zaenuri Mastur

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