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Wardani Rahayu

Universitas Negeri Jakarta

Author-ID : 2388761

Religion Arts Humanities Biochemistry, Genetics & Molecular Biology Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mathematics Physics Public Health Social Sciences Other

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TRENDS OF MATHEMATICAL LOGICAL THINKING ABILITYTHROUGH THE CRA (CONCRETE-REPRESENTATIONAL-ABSTRACT) APPROACHWITH PORTFOLIO ASSESSMENT Novaliyosi Novaliyosi; Burhanuddin Tola; Wardani Rahayu
IJER - INDONESIAN JOURNAL OF EDUCATIONAL REVIEW Vol 6 No 2 (2019): Indonesian Journal of Educational Review (IJER)
Publisher : Program Pascasarjana Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (422.808 KB)

The use of an approach in learning can provide a change in pre-service teachers mathematical logical thinking abilities, this study aims to look at the trends of mathematical logical thinking ability with treatments using Concrete-Representational-Abstract (CRA) approach with portfolio assessment. This research is a quasi-experimental with time series design. That has been acquired by new pre-service teachers. The subject of this study consists of 37 first year undergraduate students in one of the universities in Banten province, Indonesia. Pretest and posttest data were analyzed using paired sample t-test. The instruments consisted of 4 packages of mathematical logical thinking ability for pretest and posttest with each instrument consists of 8 questions on 4 indicators. The conclusion shows that there are significant differences and improvements in mathematical logical thinking ability from time to time after treatments in learning with CRA. The development of pre-service teachers mathematical logical thinking ability after CRA has trends to increase above the trendline with the equation y = 0.5085x - 1.4316. Keyword: Concrete-Representational-Abstract (CRA), logical thinking, portfolio.

PENGARUH KECERDASAN LOGIS MATEMATIS DAN KEMANDIRIAN BELAJAR TERHADAP KEMAMPUAN PEMAHAMAN KONSEP MATEMATIS SISWA DALAM PEMBELAJARAN BERBASIS DARING Muhammad Dede Firman; Wardani Rahayu; Lukman El Hakim
JURNAL PENDIDIKAN MATEMATIKA UNIVERSITAS LAMPUNG Vol 9, No 4 (2021): DESEMBER 2021
Publisher : Universitas Lampung

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

This study aims to determine the effect of mathematical logical intelligence and self-regulated learning on the ability to understand students' mathematical concepts in online-based mathematics learning. This research is survey research by giving a logical-mathematical intelligence test, a self-regulated learning questionnaire, and a mathematical concept understanding ability test to 142 X grade students in one of the Jakarta State Senior High Schools. Statistical analysis used in this study is multiple linear regression. Based on the results of hypothesis testing, it can be seen that there is an effect of mathematical logical intelligence and self-regulated learning together on the ability to understand students' mathematical concepts in online-based mathematics learning by 49.53%, there is an influence of mathematical logical intelligence significantly on the ability to understand students' mathematical concepts in online-based mathematics learning, and there is no significant effect of self-regulated learning on the ability to understand students' mathematical concepts in online-based mathematics learning. Keywords: ability to understand mathematical concepts; mathematical logical intelligence;online-based learning; self-regulated learning DOI: http://dx.doi.org/10.23960/mtk/v9i4.pp491-500

KEMAMPUAN LITERASI MATEMATIKA MENGGUNAKAN BAR MODEL PADA MATERI ALJABAR Agustiani Putri; Dadan Sumardani; Wardani Rahayu; Mimi Nur Hajizah; Adi Rahman
AKSIOMA: Jurnal Program Studi Pendidikan Matematika Vol 9, No 2 (2020)
Publisher : UNIVERSITAS MUHAMMADIYAH METRO

Penelitian ini bertujuan untuk mengetahui efektivitas penggunaan bar model terhadap kemampuan literasi matematika khususnya pada materi aljabar. Penelitian ini adalah penelitian kuantitatif. Metode penelitian yang digunakan adalah metode eksperimen dengan teknik pengambilan sampel menggunakan cluster sampling. Subjek dalam penelitian ini adalah 36 siswa pada kelas eksperimen dan kontrol. Kedua kelas yang dipilih berasal dari populasi yang berdistribusi normal, memiliki varians homogen dan mempunyai kesamaan rata-rata. Pengumpulan data menggunakan tes tertulis yang dibuat sesuai indikator keterampilan literasi matematika pada materi aljabar sebanyak 5 soal yang telah melalui uji validitas dan reliabilitas. Berdasarkan hasil penelitian, kelas eksperimen dan kelas kontrol berdistribusi normal dan memiliki varians yang sama. Pengujian hipotesis dilakukan dengan uji-t dan taraf signifikansi Berdasarkan hasil post-test, diperoleh dan sehingga , maka ditolak. Oleh karena itu, dapat disimpulkan bahwa penggunaan bar model lebih efektif daripada model konvensional untuk mengembangkan kemampuan literasi matematika. AbstractThis study discusses the efectiveness of bar modeling on specific mathematical literacy abilities in algebraic material. This research is quantitative research. The research method used is a research method with a sampling technique using cluster sampling. The subjects in this study were 36 students in the experimental and control class. The second class chosen is normally distributed, has homogeneous variants and has the same average ability. Collecting data using written tests that are made in accordance with mathematical literacy skills in algebraic material as many as 5 questions that have been tested for validity and reliability. Based on the results of the study, the experimental class and the control class were normally distributed and had the same variants. Hypothesis testing is done by t-test and significance level α = 0.05. Based on the results of the calculation, obtained and so , then is rejected. Therefore, it can be concluded that the use of bar models is more effective than conventional models for developing mathematical literacy skill.

KEMAMPUAN BERPIKIR KRITIS MATEMATIS MENGGUNAKAN MODEL GENERATIVE LEARNING DAN CONNECTING, ORGANIZING, REFLECTING, EXTENDING (CORE) Agustiani Putri; Dadan Sumardani; Wardani Rahayu; Mimi Nur Hajizah
AKSIOMA: Jurnal Program Studi Pendidikan Matematika Vol 9, No 1 (2020)
Publisher : UNIVERSITAS MUHAMMADIYAH METRO

Penelitian ini bertujuan untuk membandingkan kemampuan berpikir kritis matematis siswa yang belajar menggunakan model generative learning dan connecting, organizing, reflecting, extending (CORE). Metode penelitian yang digunakan adalah metode eksperimen semu yang dilakukan pada kelas XI SMA Negeri 12 Jakarta. Teknik pengambilan sampel menggunakan purposive sampling. Kemampuan berpikir kritis matematis siswa diukur dengan tes yang dibuat sesuai indikator keterampilan berpikir kritis matematis pada materi integral sebanyak 5 soal yang telah melalui uji validitas dan reliabilitas. Kedua kelas eksperimen yang dipilih berasal dari populasi yang berdistribusi normal, memiliki varians homogen dan mempunyai kesamaan rata-rata. Berdasarkan hasil penelitian, kelas eksperimen I dengan model generative learning dan kelas eksperimen II dengan model CORE berdistribusi normal dan memiliki varians yang sama. Pengujian hipotesis dilakukan dengan uji-t dan taraf signifikansi Berdasarkan hasil perhitungan, diperoleh dan sehingga , maka ditolak. Oleh karena itu, dapat disimpulkan bahwa kemampuan berpikir kritis matematis siswa yang belajar dengan model generative learninglebih tinggi daripada model CORE.AbstractThe objective of this study was to compare in mathematical critical thinking skills of students who learn to use the generative learning and CORE models. The research method applied is a quasi-experimental method carried out in class XI SMAN 12 Jakarta. The sampling technique in this study adopted purposive sampling. Students' mathematical critical thinking skills were measured by tests made according to indicators of mathematical critical thinking skills of the integral material as many as 5 questions that have been tested through validity and reliability. The two experimental classes selected came from populations that were normally distributed, had homogeneous variances and had similarities on average. Based on the results of the study, the experimental class I (generative learning model) and experimental class II (CORE model) were normally distributed and had the same variance. Hypothesis testing is done by using t-test statistics with a significance level Based on the results of calculations, obtained dan therefore , then is rejected. Therefore, it can be concluded that the mathematical critical thinking skill of students taught with the generative learning model is higher than the students taught using the CORE model.

Equating Method for Prevent Discrimination in Classroom Deni Iriyadi; Dali Santun Naga; Wardani Rahayu
Journal of Educational Science and Technology (EST) Volume 5 Number 2 August 2019
Publisher : Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26858/est.v5i2.9258

This study aims to determine effectivenes Simplified Cirlce Arc method used at the school level to prevent discrimination against student grades. This study National Examination data on mathematics subjects from of the Center for Educational Assessment in DKI Jakarta and Tangerang regions. Using the Rasch Model analysis, data obtained for 2135 in the DKI Jakarta (X) and 2271 in the Tangerang area (Y). The data was obtained after conducting Rasch analysis with Mean Square Outfit (MNSQ) of 0.5 <MNSQ <1.5. Replication is done 50 times for each form data distribution from each region. Results of replication then RMSE value is calculated. The results showed that equal form with normal data distribution, statistically the average RMSE with the Simplified Circle Arc method smaller than the average RMSE result of equalization with the Nominal Weight Mean method which indicates that the Simplified Circle Arc method more accurate than Nominal Weight Mean method. Likewise, with equal equations with positive skeweness and negative skewness data distribution, the average RMSE with the Simplified Circle Arc Method is smaller than average RMSE resulting in equalization of the score with Nominal Weight Mean method. A small RMSE value indicates a fairly accurate result of equalization.

Evaluation of the entrepreneurship education program through extracurricular activities of Student Company Firmansyah Firmansyah; Wardani Rahayu; Nurjannah Nurjannah
Jurnal Penelitian dan Evaluasi Pendidikan Vol 24, No 1 (2020)
Publisher : Graduate School, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/pep.v24i1.19783

The study aims to evaluate the entrepreneurship education program through extracurricular activities of Student Company at a school using a modified CIPP and Kirkpatrick evaluation model. The research found that (1) the context of the program has been very good to provide facilities to the students who want to develop their entrepreneurial potential at school. The vision, mission, and objectives of the entrepreneurship education program at the vocational high school are able to describe the future expectations for students, especially in the field of entrepreneurship. (2) The supporting program implementation factors are in the “high” category and able to support program implementation following the objectives. (3) The implementation of entrepreneurship education program through Student Company extracurricular activities is in the “middle” category, seen from some discrepancies found between the program plans and implementation. (4) The satisfaction level of students taking part in entrepreneurial education program activities is in the “middle” category, seen from their several complaints about the activities of Student Company that are not following the program plans. (5) The level of knowledge of students taking part in the Student Company extracurricular activities is in the “high” category. (6) The application of entrepreneurial values in the daily activities of students taking part in the Student Company extracurricular activities is in the “middle” category. (7) The level of self-efficacy of students towards entrepreneurship is in the “low” category. The program of entrepreneurship education through extracurricular activities of Student Company is not fully able to increase students' interest in entrepreneurship.

Indonesian-language version of general self-efficacy scale-12 using Bayesian confirmatory factor analysis: A construct validity testing Muhammad Dwirifqi Kharisma Putra; Wardani Rahayu; Jahja Umar
Jurnal Penelitian dan Evaluasi Pendidikan Vol 23, No 1 (2019)
Publisher : Graduate School, Universitas Negeri Yogyakarta

The General Self-Efficacy Scale 12 (GSES-12) is a brief measure for assessing self-efficacy. This study aimed to revise an Indonesian language version of the GSES-12 that was translated and adopted from previous research. The revision conducted by following the Guidelines for the Process of Cross-Cultural Adaptation of Self-Report Measures, and the final version was administered to 303 (132 male, 171 female) Indonesian students, with a mean age of 19.56 years (SD: 1.20). This study is presented to establish the construct validity of this instrument further. The results of Bayesian CFA revealed a higher-order structure of factor representing constructs of self-efficacy. Considering the theoretical background and the best model fit indices (PPP-value = 0.549 and BRMSEA = 0.001), it is concluded that the Indonesian version of GSES-12 appears to be a valid instrument in assessing self-efficacy in Indonesian speaking students and is expected to facilitate the examination of self-efficacy in Indonesian speaking populations.

Peningkatan kemampuan pemecahan masalah matematis dengan metode make a match dalam inkuiri ditinjau dari perbedaan gender Anggela Soraya; Wardani Rahayu; Lukita Ambarwati
PYTHAGORAS Jurnal Pendidikan Matematika Vol 13, No 1: June 2018
Publisher : Department of Mathematics Education, Faculty of Mathematics and Natural Sciences, UNY

Penelitian ini bertujuan untuk mendeskripsikan peningkatan kemampuan pemecahan masalah matematis menggunakan metode make a match dalam strategi pembelajaran inkuiri ditinjau dari perbedaan gender. Penelitian ini dilakukan di SMP Jakarta Islamic School dan SMPIT Thariq Bin Ziyad, DKI Jakarta. Di SMP Jakarta Islamic School diterapkan strategi pembelajaran inkuiri, sementara di SMPIT Thariq Bin Ziyad diterapkan strategi pembelajaran inkuiri yang dipadukan dengan metode pembelajaran make a match. Populasi penelitian melibatkan peserta didik kelas VII, dimana kelas tersebut terpisah antara peserta didik laki-laki dan perempuan. Data yang diperoleh yaitu berasal dari data pre test dan post test yang berisi soal-soal pemecahan masalah matematis. Analisis data dilakukan menggunakan analisis varians (ANAVA) dua jalur. Hasil penelitian menunjukkan bahwa: (1) tidak tedapat perbedaan peningkatan kemampuan pemecahan masalah matematis antara peserta didik laki-laki dan perempuan; (2) tidak terdapat perbedaan peningkatan kemampuan pemecahan masalah matematis antara peserta didik yang menggunakan strategi pembelajaran inkuiri dan yang menggunakan strategi pembelajaran inkuiri dipadukan dengan metode make a match, dan (3) terdapat pengeruh interaksi antara model pembelajaran dan gender terhadap kemampuan pemecahan masalah matematis peserta didik. Improvement of mathematical problem solving ability with make a match method in inquiry judging from gender differences AbstractThis study aims to describe the improvement the students’ ability in mathematical problem solving using make a match method in inquiry learning strategy in terms of gender differences. This study conducted in SMP Jakarta Islamic School and SMPIT Thariq Bin Ziyad, Jakarta, Indonesia. In SMP Jakarta Islamic School applied inquiry learning strategy, while in SMPIT Thariq Bin Ziyad applied inquiry strategy that combined with make a match learning method. The study population was students of class VII, where the class was separated between male and female students. The data obtained was derived from pre test and post test data containing problem solving mathematical problems. The data analysis using analysis of variance (ANOVA) test. The result showed that (1) there was no difference in the improvement of mathematical problem solving ability between male and female students (2) there was no difference in the ability to solve mathematical problems between students using inquiry strategies and using inquiry strategies that combined with make a match, and (3) There was an effect of interaction between lerning strategy and gender toward students’ ability in mathematical problem solving.

The Positive Impact Of Virtual Class-Based On Calculus II Teaching Materials In Improving The Conceptual Understanding Of Informatics Engineering Students Tesi Anggraini; Wardani Rahayu; Makmuri Makmuri
Jurnal Pendidikan Indonesia Vol 9 No 3 (2020)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

This research aims to analyze the validity of Calculus II teaching materials based on virtual classes; the effectiveness of teaching materials that have been designed towards improving students’ understanding of mathematical concepts. The method used in this research is ADDIE model (Analysis, Design, Development, Implementation and Evaluation). The research subjects were students of Informatics Engineering UNINDRA 4th semester who took Calculus II courses consisting 2 (two) classes, namely the experimental class consisting of 14 students and 15 students of the control class. Instruments and data collection techniques used in the form of observation, tests, and questionnaires. Data analysis used independent sample test and normalized gain score. The result showed that Calculus II teaching materials were based on virtual class was valid and effective to improve students’ understanding of concepts so it can be concluded that the teaching materials for Calculus II based on virtual classes are valid and suitable for use in learning and are effective and practical to improve student’s conceptual understanding.

The Effectiveness of Mathematics E-Modules with a Contextual Approach on Geometry Matters to Improving Students’ Learning Outcomes Sukarman Sukarman; Wardani Rahayu; Lukman El Hakim
Jurnal Pendidikan Indonesia Vol 10 No 2 (2021)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

This study aims to analyze the development of web-based mathematics teaching materials using Moodle from the Learning Management System (LMS) with a Contextual Approach to Geometry in the eighth grade of junior high school. This research is development research by adapting the Borg and Gall development model, consisting of expert validation, small group trials, and large group trials. It uses the t-test to measure product effectiveness. Data collection techniques used questionnaires and written tests. Data analysis was carried out quantitatively using descriptive and inferential statistics. The effectiveness test results show that the t-table value is 2,988, with a significant level of 0.012 smaller than 0.025 (0.012 <0.025). Based on these results, Ho is rejected, so there is an average difference between the experimental class and the control class. Based on these results, it can be stated that the product developed in the form of an E-mathematical module with a contextual approach effectively improves student learning outcomes in geometry material.

Co-Authors Achmad Ridwan, Achmad Adi Rahman Adinda Cahyani Afriadi, Bambang Agustiani Putri Ahmad Zaeni Ahmad, Nurul Qomariyah Ajeng Meilani Alifa Sabrina Amalia, Nazira Amini, Ingriani Indah Anan Sutisna Anggela Soraya Anggraini, Tesi Ani Rusilowati Anny Sovia Arafiyah, Ria arnianti arnianti Asep Sutisna Aurelia Hidajat, Flavia Awaluddin Tjalla Ayu Lestari Sardi Azima, Laely Astafiani Bahrul Hayat Besse Arnawisuda Ningsi Burhanuddin Tola Candra Irawan Corry Yohana Dadan Sumardani Dali S. Naga Dali S. Naga Dali Santun Naga Dali Santun Naga Darmastuti, Lintang Deni Iriyadi Deviana, Tina Dien Maya Alvionita Dion Aris Simanjuntak Dwi Rismi Ocy Dwi Rismi Ocy Eko Wahyudi Eko Widodo El Hakim, Lukman Elfrida Ratnawati Ellis Salsabila, Ellis Ema Noviah Erdawaty Kamaruddin Erry Utomo Erwin Sulaeman Firmansyah, Firmansyah Fitri Khairunnisa Flavia Aurelia Hidajat Flavia Aurelia Hidajat, Flavia Aurelia Fridani, Lara Gartika, Euis Hajizah, Mimi Nur Hakim, Lukman El Handayani, Lisya I Made Putrawan Iasha, Vina Ibnu Salman, Ibnu Indah Mustika Rini Intan Isma Fauziyah Irvana Arofah Iva Sarifah Josua, Dian Pertiwi Kacep Muslim Kadir Kadir Kadir Kadir Kadir Kadir Kartono - Ketty Diana Tundoong Ketty Diana Tundoong, Ketty Diana Khairunesa Isa Khoirunnisa, Mustika Kismanto, Nugro Koeshella, Ajeng Komarudin Komarudin Leny Dhianti Haeruman Lesmanawati, Yunita Lidia Lidia, Lidia Lisa Dwi Ningtyas Lubis, Risa Nursamsih Lukita Ambarwati Lukman El Hakim Lusi Lusiyana Makmuri Makmuri Makmuri Makmuri Makmuri Maysun Meilanie, R Sri Martini Meiliasari Meiliasari Meiliasari Meiliasari Meiliasari Meiliasari Merrydian, Siska Mezika Wahyuni Miiftakhul Fitri Moch. Herlan Mochamad Herlan Muhammad Dede Firman Muhammad Dwirifqi Kharisma Putra Muhammad Dwirifqi Kharisma Putra Ndoluanak, Yofran Hengki Nidia Rosita Ninik Anggraini Novaliyosi Novaliyosi Novelin Gracia Noviah, Ema Nur Sholihin Nurhasanah, Heni Nuridayanti, Nuridayanti Nurjannah Nurjannah Ocy Dwi Rismi Ocy, Dwi Rismi Oktavia Oktavia Oktaviani, Maya Permana, Agus Agung Piliyang, Yusriizal Pinta Deniyanti Sampoerno Rahmadhani, Elfi Rahmi. S, Laila Rahmirini Datau Raihanati Raihanati Ramadan, Awalia Nor Ratna Widyati Rini Setiawati Rini, Indah Mustika Riyadi Riyadi Riyadi Riyan Arthur Rofifah, Jihan Rosita Uli Sihombing Rosita Uli Sihombing Roudloh Muna Lia Samsun, Samsun . Sembiring, Rinawati Sihombing, Jesika Yanti Simanjuntak, Dion Aris Siska Merrydian Siti Nur Cholifah Siti Rohmah Rohimah Soesanto, Robert Harry Sugeng Priyanto, Sugeng Sukarman Sukarman Sukarman Sukarman Sulaeman, Erwin Supriyadi Supriyadi Supriyati, Yetti Suraji Suraji Syarifah Ayu Tengku Riza Zarzani N Tesi Anggraini Tika, Neni Widias Tri Cahya Mulia tri wahyuni Umar, Jahja Valendra Granitha Shandika Puri Valeria Yekti Kwasaning Gusti Vera Maya Santi Vina Iasha Wahyu Akbari Waryadi Waryadi Winona Amanda Tiara Widodo Wiwi Isnaeni Yuli Rahmawati Yunida, Helvy Yunika Apriyani Yunita Lesmanawati

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