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All Journal Kreano, Jurnal Matematika Kreatif-Inovatif Journal on Mathematics Education (JME) Jurnal Riset Pendidikan Matematika Jurnal Teknologi Informasi dan Ilmu Komputer Al-Jabar : Jurnal Pendidikan Matematika Al Ishlah Jurnal Pendidikan Al-Ta'dib: Jurnal Kajian Ilmu Kependidikan Journal of Mathematics and Mathematics Education (JMME) Indonesian Journal of Science and Mathematics Education Jurnal Bumigora Information Technology (BITe) Nusantara Science and Technology Proceedings Journal of Applied Data Sciences Mosharafa: Jurnal Pendidikan Matematika Jurnal Pengabdian kepada Masyarakat Prosiding Seminar Nasional Teknik Elektro, Sistem Informasi, dan Teknik Informatika (SNESTIK) Prosiding SNPBS (Seminar Nasional Pendidikan Biologi dan Saintek) Prosiding Konferensi Nasional Penelitian Matematika dan Pembelajarannya Muslim Education Review Proceeding of International Conference on Humanity Education and Society Jurnal SUTASOMA Proceeding International Conference on Mathematics and Learning Research
Isnandar Slamet, Isnandar
Universitas Sebelas Maret Surakarta
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Public Health Social Sciences Other

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Mathematical Critical Thinking: Analysis of Middle School Students' Thinking Processes in Solving Trigonometry Problems Tajuddin, Annas Tasyah; Sujadi, Imam; Slamet, Isnandar; Hendriyanto, Agus
Mosharafa: Jurnal Pendidikan Matematika Vol. 12 No. 4 (2023): October
Publisher : Department of Mathematics Education Program IPI Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31980/mosharafa.v12i4.1185

Abstract

Kemampuan berpikir kritis siswa dalam matematika saat ini masih lemah. Penelitian ini bertujuan untuk mengidentifikasi karakteristik kemampuan berpikir kritis matematis siswa dalam menyelesaikan masalah trigonometri. Metode penelitian yang digunakan adalah studi kualitatif dengan desain fenomenologi, melibatkan peneliti sebagai instrumen utama. Penelitian ini menggunakan tes (masalah trigonometri), pedoman wawancara, dan observasi sebagai instrumen non-tes. Subjek penelitian terdiri dari tiga siswa kelas X yang dipilih dengan teknik purposive sampling. Uji keabsahan dilakukan melalui triangulasi metode dan teori, serta analisis data menggunakan teknik induktif. Hasil penelitian menunjukkan bahwa siswa dengan kemampuan berpikir kritis cenderung lebih efektif dan cepat dalam menyelesaikan masalah trigonometri. Mereka memiliki pendekatan unik dalam memecahkan masalah dan fokus pada pencarian jawaban. Pemikiran kritis matematis juga mempengaruhi kemampuan siswa dalam memahami dan menghubungkan informasi yang ada dalam soal. Selain itu, pemikiran kritis matematis berdampak pada pemikiran logis dan daya ingat yang baik, sehingga siswa lebih mudah dalam menentukan formula pemecahan masalah. Students' critical thinking skills in mathematics are currently still weak. This study aims to identify the characteristics of students' mathematical critical thinking abilities in solving trigonometry problems. The research method used is a qualitative study with a phenomenological design involving researchers as the main instrument. This study uses tests (trigonometry problems), interview guidelines, and observation as non-test instruments. The research subjects consisted of three class X students selected by purposive sampling technique. The validity test was carried out through method and theory triangulation and data analysis using inductive techniques. The results showed that students with critical thinking skills tended to be more effective and faster in solving trigonometry problems. They have a unique approach to solving problems and focus on finding answers. Mathematical critical thinking also affects students' ability to understand and relate the information contained in the problem. In addition, mathematical critical thinking impacts logical thinking and good memory, so students find it easier to determine problem-solving formulas.
The Autoregresiive Integrated Moving Average and Fuzzy Time Series Cheng Hybrid for Predicting Stock Price Neyun, Ignasia N.G.; Sulandari, Winita; Slamet, Isnandar
Jurnal Bumigora Information Technology (BITe) Vol. 5 No. 2 (2023)
Publisher : Universitas Bumigora

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30812/bite.v5i2.2972

Abstract

Background: PT Telkom Indonesia Tbk is the largest company in the telecommunications sector in Indonesia. PT Telkom's share price always rises every year, attracting investors to invest. In investing, it is very important to analyze shares in order to know the situation and condition of the shares. Objective: This research aims to predict the share price of PT Telkom Indonesia Tbk. Methods: The method used is the Autoregressive Integrated Moving Average (ARIMA)-Fuzzy Time Series Cheng hybrid method. Cheng's FTS model is able to overcome nonlinearity problems in ARIMA model residuals. In this research, the first modeling uses the ARIMA model, where the data is divided into two, namely January to November 2019 data used as training data, and December 2019 data used as testing data. Next, residual modeling was carried out with FTS Cheng. Hybrid forecasting is obtained by adding up the results of ARIMA and FTS Cheng forecasts. Result: Model evaluation is based on MAPE values and in this study the MAPE value of the ARIMA-FTS Cheng hybrid model was obtained at 1.03\% for training data and 1.09\% for testing data. Conclusion: The hybrid model has a MAPE value of less than 10\%, so it can be concluded that the ARIMA-FTS Cheng hybrid model can predict PT Telkom Indonesia Tbk stock closing price data accurately.
Pengembangan Modul Berbasis Pendidikan Matematika Realistik untuk Meningkatkan Kemampuan Berpikir Kritis Siswa SMA Tajuddin, Annas Tasyah; Sujadi, Imam; Slamet, Isnandar
Prosiding SNPBS (Seminar Nasional Pendidikan Biologi dan Saintek) 2022: Prosiding SNPBS (Seminar Nasional Pendidikan Biologi dan Saintek)
Publisher : Universitas Muhammadiyah Surakarta

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

Abstract

Media pembelajaran yang dapat digunakan dalam pembelajaran matematika adalah modul. Guru dapat mengembangkan modul berdasarkan pendekatan pembelajaran yang sesuai dengan perkembangan dan kebutuhan pembelajaran matematika. Pendekatan tersebut harus dapat menarik perhatian siswa pada proses pembelajaran dan melibatkan partisipasi aktif mereka. Selain itu, harus mampu mengoptimalkan suasana belajar untuk menciptakan kegiatan belajar yang bermakna bagi siswa. Salah satu pendekatan yang dapat memberikan makna dan terkait dengan realitas kehidupan siswa adalah Pendidikan Matematika Realistik. Pembelajaran matematika juga didukung oleh penguasaan keterampilan berpikir kritis siswa, yaitu proses berpikir efektif untuk membantu siswa membuat sesuatu, mengevaluasi, dan menerapkan keputusannya sesuai dengan apa yang diyakini atau dilakukan. Penerapan modul berdasarkan Pendekatan Pendidikan Matematika Realistik pada pembelajaran matematika dapat melatih keterampilan siswa dalam menghubungkan, memanipulasi, dan mentransformasikan pengetahuan dan pengalaman yang telah dimilikinya untuk berpikir kritis dalam rangka mengambil keputusan dan memecahkan masalah. Proses pembelajaran berlangsung secara alamiah dimana siswa melakukan aktivitas dan memperoleh pengalaman bukan menerima pengetahuan yang ditransfer dari guru. Artikel ini ditulis dengan menggunakan metode studi kepustakaan dengan teknik analisis isi dari artikel ilmiah dan referensi lain berupa media cetak dan elektronik yang relevan.Berdasarkan analisis terhadap beberapa artikel dan referensi ilmiah yang relevan, ditemukan bahwa penerapan pendekatan Pendidikan Matematika Realistik di SMA menghasilkan peningkatan hasil belajar dan kemampuan berpikir kritis.
PENGEMBANGAN MODUL PEMBELAJARAN DENGAN PENDEKATAN DISCOVERY LEARNING PADA MATERI LIMIT FUNGSI ALJABAR KELAS X DI SMA INSAN CENDEKIA SUKOHARJO TAHUN AJARAN 2015/2016 Wulandari, Setyati Puji; Budiyono, Budiyono; Slamet, Isnandar
Journal of Mathematics and Mathematics Education Vol 7, No 1 (2017): Journal of Mathematics and Mathematics Education (JMME)
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jmme.v7i1.20236

Abstract

Abstract: The aims of this research were to: 1) determine the validity of the results of the development of learning modules with discovery learning approach on the material of limit algebra functions; 2) determine the practicality of the development of learning modules; 3) determine the effectiveness of the development of learning modules; 4) determine whether students achievement in the material of limit algebra functions using learning modules is better than the students who don’t use it. The development of the modules was done through the modified Four D, namely define, design, development, and disseminate. Data were analyzed using descriptive analysis. Validity analysis was based on an expert assessment. Practicality analysis was based on implementation of learning module. Effectiveness analysis was based on student response after using the module. Analysis of student achievement was based on t-test hypothesis. The result concluded that: 1) learning modules with discovery learning approach to the material limit algebra functions declared fit for use by experts with the validity score of 3.44 and be in very good criteria; 2) learning modules expressed practical use in learning with the practicality score gained from the sheet of implementation of learning is 0.919 and be in very good criteria; 3) learning modules is effective for use in learning with the scores of effectiveness obtained from the sheet of student's response to the module is 3.03 and be in good criteria; 4) learning achievement of students who use the learning module is better than students who don’t use it, but isn’t significant.Keywords: learning module, discovery learning, limit algebra functions.
EKSPERIMENTASI MODEL PEMBELAJARAN KOOPERATIF TIPE TEAM ASSISTED INDIVIDUALIZATION (TAI), GROUP INVESTIGATION (GI), DAN PEMBELAJARAN LANGSUNG PADA MATERI PERSAMAAN GARIS LURUS DITINJAU DARI KEMANDIRIAN BELAJAR SISWA KELAS VIII SMP NEGERI SE-KOTA SURAKARTA Meilasari, Venty; Budiyono, Budiyono; Slamet, Isnandar
Journal of Mathematics and Mathematics Education Vol 6, No 1 (2016): Journal of Mathematics and Mathematics Education (JMME)
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jmme.v6i1.10042

Abstract

Abstract: This research aimed to find out: (1) which one providing better mathematics learning achievement, TAI model, GI model or direct instruction model, (2) which one providing better mathematics learning achievement, the high, medium or low independence of learning students, (3) in each learning models, which one providing better mathematics learning achievement, the high, medium, or low independence of learning students, (4) in each categories of independence of learning, which one providing better mathematics learning achievement, TAI model, GI model or direct instruction learning model. This research used the quasi-experimental research method. The research design was a 3×3 factorial design. The population were all students of the eight class of junior high school in Surakarta on academic year 2015/2016. The sample was taken using stratified cluster random sampling and consisted of 281 students. The instruments used were independence of learning questionnaire and mathematics achievement test. The proposed hypothesis of the research were analyzed by using two-way analysis of variance with unbalanced cells. The conclusions of this research were as follow. (1) TAI model provided the mathematics achievement as good as GI model, TAI model and GI model provided better mathematics achievement than direct instruction model. (2) The high independence of learning student had better mathematics achievement than medium and low independence of learning students, and the medium had better than low independence of learning students. (3) In TAI model and direct instruction model, the high, medium, and low independence of learning had the same mathematics achievement, in GI learning model, the high independence of learning students had mathematics achievement as good as the medium independence of learning students, the high independence of learning had better than the low independence of learning, and the medium independence of learning students had the same as the low independence of learning students. (4) In high and low independence of learning, TAI model, GI model, and direct instruction model provided the same achievement, in medium independence of learning, TAI model and GI model provided the same achievement, TAI model provided better achievement than direct instruction model, GI model was the same as direct instruction model.Keyword: TAI, GI, Direct Instruction, Independence of Learning, and Mathematics Achievement
Profile Of Tourist Visits In Sangiran Site Area, Sragen Regency Subanti, Sri; Slamet, Isnandar; Sulandari, Winita; Zukhronah, Etik; Sugiyanto, Sugiyanto; Susanto, Irwan
Journal of Mathematics and Mathematics Education Vol 11, No 1 (2021): Journal of Mathematics and Mathematics Education (JMME)
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jmme.v11i1.52744

Abstract

Tourism activities are chain activities that involve various sectors and related institutions. Tourism is one of the fields in the lives of the people of Sragen Regency, which has become one of the priorities in development in recent years. This is based on the local government's awareness that tourism development can support regional income while at the same time increasing the standard of living of people living in tourist areas. For this reason, evaluating the impact of tourism in an area on the socioeconomic conditions of the community is an important thing to know. Sangiran is one of the most complete paleontological sites in Indonesia. Sangiran has also been designated as a cultural heritage by UNESCO on December 5, 1996, with the designation number C.593. The Sangiran site itself is located in Sragen Regency and Karanganyar Regency, Central Java Province. In general, the background of the population in the Sangiran Site area comes from the Javanese ethnic group, who in daily life communicate using the Javanese language. The Sangiran site has been known as an ancient human area from the Pleistocene. Not only storing archaeological wealth, but Sangiran is also very rich in artistic potential, both from prehistoric times and the present. Many things can be enjoyed in Sangiran. Apart from the museum that presents archaeological findings full of meaning, the public can also enjoy the local culture, including traditional arts, traditional ceremonies, local architecture, and folk crafts, adding value to the site. This study aims to determine the profile of tourist visits in the Sangiran Site Area. This study found that the factors that influence the number of visits to the Sangiran Site Area are travel costs, age, gender, and monthly income of respondents related to visiting the Sangiran Site Area. Furthermore, the factors that influence the respondents' willingness to accept ticket offers in the market hypothesis scenario in the Sangiran Site Area are the nominal price of the entrance ticket to a market hypothesis given to respondents, age, gender, monthly income of respondents, education level of respondents, and origin of the respondent.
Co-Authors Abda Abda Adi Wicaksono, Nanda Anggraini, Putri Nurika Aprilia, Nabila Churin Aulia Ar Rakhman Awaludin Ayuningrum, Retna Azhar, Zenitha Amalia B Budiyono Budiyono Budiyono Budiyono, Budiyono Ek Ajeng Rahmi Pinahayu Fachry Abda El Rahman Fhadilla, Nahdatul Fitriana, Laila Fitriana, Laila Nur Handajani, Sri Sulistijowati Heldy Ramadhan Putra P Hendriyanto, Agus Heritin, Anisak Hermawati, Evi Hodiyanto Husna Afanyn Khoirunissa Ikrar Pramudya, Ikrar Imam Sujadi Imam Suryadi, Imam Indra Raditya , Dionisius Indra Setyawan Irwan Susanto Isnaini, Bayutama Kadar, Jimmy Abdel Lintang Fitra Utami Mardiyana Mardiyana Meilasari, Venty Meilasari, Venty Muhammad Riza Naufalia Nuraya, Naufalia Neyun, Ignasia N.G. Ningrum, Sri Adiningsih Utami Nugraha, Titis Jati Nugroho, Muhamad Asif Cahya Aji Nur Hasanah Nurfauziyyah, Nuha Pardede, Hilman Ferdinandus Permatasari, Nisa Permatasari, Nisa Pitra Dwiningsih, Pitra Pratama, Yulian Surya PUJI LESTARI Raditya, Dionisius Indra Ratri, Aninda Puspa Respatiwulan, Respatiwulan Sari, Putri Permata Shanti Indah Lestari, Shanti Indah Sri Subanti Suci Irawati Sugianto Sugianto Sugiyanto - Sugiyanto, Sugiyanto Sulandari, Winita Susanti, Sarah Wahyu Susilotomoa, Dhestahendra Citra Tajuddin, Annas Tasyah Tririnika, Yuliana Valentino, Yohanes Felix Vera Rosalina Bulu Wahyu Kurniawan Winita Sulandari Wulandari, Setyati Puji Wulandari, Setyati Puji Yudi Pramono Pawiro, Yudi Pramono Yuliana Susanti, Yuliana Zukhronah, Etik