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All Journal AKSIOMA: Jurnal Program Studi Pendidikan Matematika JPMI (Jurnal Pembelajaran Matematika Inovatif) Journal of Medives: Journal of Mathematics Education IKIP Veteran Semarang

Dewi Ratna Sari

IKIP Siliwangi

Author-ID : 4106445

Education Mathematics Other

Published : 4 Documents Claim Missing Document

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PENGEMBANGAN MODUL GEOMETRI ANALITIK BERBASIS STRATEGI REACT BERBANTUAN GEOGEBRA UNTUK MELATIHKAN KEMAMPUAN BERPIKIR KRITIS Asep Ikin Sugandi; Deddy Sofyan; Linda Linda; Dewi Ratna Sari
AKSIOMA: Jurnal Program Studi Pendidikan Matematika Vol 11, No 2 (2022)
Publisher : UNIVERSITAS MUHAMMADIYAH METRO

Tujuan pada penelitian ini ialah mengembangkan modul geometri analitik berbasis REACT berbantuan geogebra yang memenuhi kriteria valid, praktis dan efektif.untuk mahasiswa IKIP Siliwangi. Adapun model yang digunakan dalam pengembangaan yaitu model 4-D (Define, Design, Development, dan Disseminate). Subjek penelitian ini mahasiswa Pendidikan Matematika angkatan 2020 berjumlah 18 orang. Alat pengumpulan data pada penelitian ini berupa angket serta tes yang memuat soal uraian mengenai kemampuan berpikir kritis. Dari hasil pengolahan data didapat kesimpulan bahwa modul pembelajaran yang dikembangkan dikategorikan valid dengan nilai rata-rata sebesar 92,06, dikategorikan praktis dengan nilai rata-rata sebesar 72,85 dan dikategorikan efektif dengan nilai rata-rata sebesar 75,25. Denga demikian modul geometri analitik berbasis REACT berbantuan geogebra sangat tepat digunakan dalam pembelajaran geometri untuk tingkat mahasiswa. The purpose of this study is to develop an analytical geometry module based on REACT with the aid of geogebra that meets the valid, practical and effective criteria for students of IKIP Siliwangi. The model used in the development is a 4-D model (Define, Design, Development, and Disseminate). The subjects of this study were 18 students of Mathematics Education class of 2020. Data collection tools in this study were in the form of questionnaires and tests containing descriptions of critical thinking skills. From the results of data processing, it can be concluded that the learning module developed is categorized as valid with an average value of 92.06, categorized as practical with an average value of 72.85 and categorized as effective with an average value of 75.25. Thus, the REACT-based analytic geometry module with the aid of Geogebra is very appropriate to be used in geometry learning for the student level.

IDENTIFIKASI KESALAHAN MAHASISWA DALAM MENYELESAIKAN SOAL-SOAL PADA MATA KULIAH GEOMETRI ANALITIK Asep Ikin Sugandi; Deddy Sofyan; Linda Linda; Dewi Ratna Sari
JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol 5, No 4 (2022): JPMI
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jpmi.v5i4.11151

The purpose of this study is to describe the errors made by students when solving problems on the material of circles and conic sections. The method used in this study is a qualitative descriptive method. The subjects in the study consisted of 30 students of the Mathematics Education Study Program, IKIP Siliwangi Bandung. The instrument of this research is a written test in the form of a description of 4 questions. The data processing was carried out in three stages, namely the reduction stage, the presentation and drawing conclusions from the data. Based on the results of the study, it showed that students' errors in solving analytic geometry problems consisted of conceptual, procedural and technical errors. The causes of conceptual errors are student errors in stating the formula used when solving the problems presented, students do not understand the material and do not know how to solve problems. The cause of procedural errors is that students lack practice when completing the given practice questions, students do not understand the process of solving problems correctly. The cause of technical errors is the lack of skill of students in the process of calculating in an operation and students' inaccuracy in the calculation process, less thorough and in a hurry when solving problems so they do not re-check what has been done

PENERAPAN STRATEGI REACT BERBANTUAN GEOGEBRA DALAM MENINGKATKAN KEMAMPUAN BERPIKIR KRITIS MATEMATIS Deddy Sofyan; Asep Ikin Sugandi; Linda Linda; Dewi Ratna Sari; Martin Bernard
AKSIOMA: Jurnal Program Studi Pendidikan Matematika Vol 11, No 3 (2022)
Publisher : UNIVERSITAS MUHAMMADIYAH METRO

The purpose of this research is to examine the effectiveness of applying Geogebra-assisted REACT strategy to improve students' critical thinking. The experimental method is the method chosen in this study. The population of this study were all students of the Mathematics Education Study Program, IKIP Siliwangi Bandung, while the sample was students of the Class of 2020 of the Mathematics Education Study Program of 2 classes. In this study, an instrument in the form of a description of 4 items was used to measure critical thinking. Data analysis used descriptive statistics and inferential statistics with the help of SPSS version 21. Based on the results of data processing, it was concluded that the application of the REACT strategy assisted by GeoGebra was more effective in improving critical thinking skills than conventional learning.Tujuan pada penelitian ini untuk menelaah keefektifan penerapan strategi REACT berbantuan Geogebra untuk meningkatkan berpikir kritis mahasiswa. Metode eksperimen merupakan metode yang dipilih dalam penelitian ini. Populasi penelitian ini adalah semua mahasiswa Prodi Pendidikan Matematika IKIP Siliwangi Bandung, sedangkan sampelnya adalah mahsiswa Angkatan 2020 Prodi Pendidikan Matematika sebanyak 2 kelas . Dalam penelitian ini digunakan instrumen berupa soal uraian sebanyak 4 butir soal yang digunakan dalam mengukur berpikir kritis. Analisis data yang digunakan dengan menggunakan statistik deskriptif dan statistik inferensial dengan bantuan SPSS versi 21. Berdasarkan hasil pengolahan data didapat kesimpulan bahwa penerapan strategi REACT berbantuan Geogebra lebih efektif dalam meningkatkan kemampuan berpikir kritis dibandingkan pembelajaran konvensional.

Analisis Kesalahan Siswa SMP dalam Menyelesaikan Soal Materi Statistika di Bandung Barat Dewi Ratna Sari; Martin Bernard
Jurnal Pendidikan Matematika IKIP Veteran Semarang Vol 4 No 2 (2020): Journal of Medives : Journal of Mathematics Education IKIP Veteran Semarang
Publisher : Urogram Studi Pendidikan Matematika, Universitas IVET

Tujuan dari penelitian ini adalah untuk mengidentifikasi kesalahan siswa kelas IX SMP di Bandung Barat dalam menyelesaikan soal pada materi statistika.Jenis penelitian inimerupakan penelitian deskriptif, dengan menganalisis dan mendeskripsikan kesalahan dalam menyelesaikan soal pada materi statistika yang berpedoman pada indikator kesalahan menurut Kastolan.Penelitian dilakukan dengan memberikan tes tertulis dalam bentuk soal uraian yang berjumlah tujuh soal dan angket kuisioner kemudian dianalisis. Berdasarkan hasil penelitian disimpulan bahwa analisis kesalahan yang di hadapi oleh siswa SMP pada materi statistika, berupa persentase data diperoleh Kesalahan Konseptual 37,1% dan Kesalahan Prosedural 35,9%. Adapun hasil analisis menunjukkan bahwa: (1) siswa mengalami kesalahan konseptual, berupa kesalahan menentukan dan penggunaan rumus yang tidak sesuai serta tidak menuliskan rumus untuk menjawabsuatu masalah. (2) siswa mengalami hambatan dalam menyelesaikan soal karena lupa dengan formula atau rumus yang akan digunakan. Kata kunci: analisis kesalahan, statistika. ABSTRACT This study aims to analyze the errors in solving statistics problems of 9th grade students of junior high school. This is a descriptive research by analysing and describing the errorindicators in solving statistics problems according to Kastolan. The study was conducted by giving a questionnaire and written test in the form of a description containing seven questions.The study concludes that junior high school students’errors on statisticsproblems in the from of percentage error of the data obtained Conceptual Errors by 37.1% and Procedural Errors 35.9%. The results show that: (1) students have conceptual errors, such as errors defining and using formulas, (2) students get difficulties in solving problems because they forget the formula. Keywords: analysis of error, statistics.

Co-Authors Asep Ikin Sugandi Asep Ikin Sugandi Asep Ikin Sugandi Deddy Sofyan Linda Linda Martin Bernard

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