Articles
<![CDATA[REPRESENTASI MATEMATIS MAHASISWA BERTIPE KEPRIBADIAN SANGUINIS ]]>
<![CDATA[Oktaviyanthi, Rina]]>
<![CDATA[ Jurnal Penelitian dan Pembelajaran Matematika Vol 10, No 1 (2017): Jurnal Penelitian dan Pembelajaran Matematika Volume 10 Nomor 1 Februari 2017 ]]>
Publisher : <![CDATA[Universitas Sultan Ageng Tirtayasa ]]>
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DOI: 10.30870/jppm.v10i1.1097
<![CDATA[Penelitian ini memokuskan pada salah satu aspek daya matematis yaitu representasi matematis yang dikaitkan dengan karakteristik unik pada diri mahasiswa. Karakteristik unik mahasiswa dalam kegiatan belajar menjadi salah satu fokus yang perlu dipertimbangkan dosen dalam merancang pembelajaran untuk mengoptimalkan kemampuan yang dimiliki mahasiswa. Salah satu karakteristik unik yang dapat ditelusuri pada diri mahasiswa adalah kecenderungan pola kepribadian yang dalam penelitian ini merujuk pada pola kepribadian Hippocrates Galenus yaitu Sanguinis, Melankolis, Kholeris, dan Phlegmatis. Tujuan dari studi ini adalah mendeskripsikan representasi matematis mahasiswa dengan tipe kepribadian Sanguinis. Deskripsi representasi matematis tersebut didasarkan pada hasil pekerjaan mahasiswa dalam menyelesaikan soal matematika. Ada empat indikator teknis representasi matematis yang dijadikan ukuran dalam menganalisis hasil pekerjaan mahasiswa. Metode yang digunakan untuk mengetahui gambaran representasi matematis mahasiswa tipe Sanguinis dalam penyelesaian soal adalah menyelesaikan soal dengan wawancara (task-based interviews).]]>
<![CDATA[3R: Suatu Alternatif Pengolahan Sampah Rumah Tangga ]]>
<![CDATA[Agus, Ria Noviana]]>;
<![CDATA[Oktaviyanthi, Rina]]>;
<![CDATA[Sholahudin, Usep]]>
<![CDATA[ KAIBON ABHINAYA : JURNAL PENGABDIAN MASYARAKAT Vol 1, No 2 (2019) ]]>
Publisher : <![CDATA[Universitas Serang Raya ]]>
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DOI: 10.30656/ka.v1i2.1538
<![CDATA[Kegiatan pengabdian ini difokuskan kepada sosialisasi pengolahan sampah rumah tangga dan pelatihan pembuatan kerajinan tangan dari koran bekas. Untuk mencapai tujuan digunakan metode community based participatory action dengan tahapan kegiatan terdiri atas perencanaan, pelaksanaan, dan evaluasi. Ada 21 peserta ibu-ibu PKK dan remaja putri desa petir, kecamatan petir, kabupaen serang. Persentase pemahaman peserta rata-rata 80% pada kegiatan community based participatory action tentang sosialisasi pengolahan sampah rumah tangga dan pelatihan pembuatak kerajinan tangan dari koran bekas, jadi. Rata-rata pemahaman tersebut memberikan respon yang baik, oleh karena itu kegiatan pengabdian ini diharapkan dapat menyadarkan masyarakat desa petir untuk dapat bijaksana mengolah sampah dan dapat membuat kerajinan tangan dari sampah yang masih bisa dipakai dan di daur ulang yang dapat bernilai ekonomis.]]>
<![CDATA[HOW DOES PRE-SERVICE MATHEMATICS TEACHER PROVE THE LIMIT OF A FUNCTION BY FORMAL DEFINITION? ]]>
<![CDATA[Oktaviyanthi, Rina]]>;
<![CDATA[Herman, Tatang]]>;
<![CDATA[Dahlan, Jarnawi Afgani]]>
<![CDATA[ Journal on Mathematics Education Vol 9, No 2 (2018) ]]>
Publisher : <![CDATA[Department of Doctoral Program on Mathematics Education, Sriwijaya University ]]>
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DOI: 10.22342/jme.9.2.5684.195-212
<![CDATA[The purpose of this study was to investigate the flow of thought of the pre-service mathematics teachers through the answers of a function limit evaluation by formal definition. This study used a qualitative approach with descriptive method. The research subjects were the students of mathematics education department of Universitas Serang Raya, Indonesia. After analyzing the students’ written answers, we interviewed the subjects to get further explanation on their strategies and common mistakes. This study found that based on the students’ results in the function limit evaluation by formal definition, there were common strategies, i.e. (1) preparing the proof and (2) proving. The stage of preparing the proof consisted of (1) determining delta value by the final statement of formal definition, (2) substituting the given f(x) and L process, (3) simplifying value in the absolute sign, (4) solving the inequality, and (5) finding the delta value. The stage of proving consisted of (1) stating positive epsilon, (2) defining delta, (3) stating positive delta, (4) substituting the constants and delta values in the initial statement of formal definition, and (5) solving the inequality to create the final inequality statement of the formal definition.]]>
<![CDATA[UTILIZING MICROSOFT MATHEMATICS IN TEACHING AND LEARNING CALCULUS ]]>
<![CDATA[Oktaviyanthi, Rina]]>;
<![CDATA[Supriani, Yani]]>
<![CDATA[ Journal on Mathematics Education Vol 6, No 1 (2015) ]]>
Publisher : <![CDATA[Department of Doctoral Program on Mathematics Education, Sriwijaya University ]]>
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DOI: 10.22342/jme.6.1.1902.63-76
<![CDATA[The experimental design was conducted to investigate the use of Microsoft Mathematics, free software made by Microsoft Corporation, in teaching and learning Calculus. This paper reports results from experimental study details on implementation of Microsoft Mathematics in Calculus, students’ achievement and the effects of the use of Microsoft Mathematics on students’ attitudes in relation to such experience. Two classes of the students from the first year student in Universitas Serang Raya were participated in the study. This study found that students who taught by using Microsoft Mathematics had higher achievement and has a positive effect on students’ confidence of mathematics.Keywords: Calculus, Educational Technology, Mathematics Education, Microsoft Mathematics, Technology Application DOI: dx.doi.org/10.22342/jme.61.63]]>
<![CDATA[INSTRUMEN EVALUASI KEMAMPUAN PENALARAN ADAPTIF MATEMATIS MAHASISWA ]]>
<![CDATA[Oktaviyanthi, Rina]]>;
<![CDATA[Agus, Ria Noviana]]>
<![CDATA[ AKSIOMA: Jurnal Program Studi Pendidikan Matematika Vol 9, No 4 (2020) ]]>
Publisher : <![CDATA[UNIVERSITAS MUHAMMADIYAH METRO ]]>
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DOI: 10.24127/ajpm.v9i4.3150
<![CDATA[Meningkatkan kemampuan penalaran adaptif matematis mahasiswa tingkat pertama universitas merupakan suatu tantangan nyata terutama pada mata kuliah dengan tingkat abstraksi tinggi. Agar proses peningkatan kemampuan tersebut dapat dilakukan secara optimal perlu didukung oleh instrumen evaluasi yang kompatibel. Namun instrumen evaluasi yang dinyatakan layak digunakan belum tersedia, khususnya di lingkungan Pendidikan Matematika, Universitas Serang Raya. Instrumen evaluasi dinyatakan layak digunakan jika memenuhi kriteria valid dan reliabel pada proses pengembangannya. Berdasarkan hal tersebut, maka tujuan penelitian ini adalah mengembangkan instrumen evaluasi kemampuan penalaran adaptif matematis mahasiswa. Pendekatan penelitian menggunakan deskriptif dengan metode content analysis dan expert review pada validitas instrumen melalui tahapan instructional phases design yakni analysis and design, development dan evaluation. Secara umum hasil uji keseragaman dan keterbacaan validator menunjukkan nilai Asymp. Sig. > 0,05 yang memiliki pengertian bahwa validator memberi pertimbangan seragam pada validitas muka dan isi instrumen evaluasi kemampuan penalaran adaptif matematis mahasiswa. Dengan demikian instrumen evaluasi berupa soal tes dapat digunakan untuk mengukur kemampuan penalaran adaptif matematis mahasiswa khususnya materi Limit. Improving first-year university students' mathematical adaptive reasoning skills is an undeniable challenge, particularly in subjects with a high level of abstraction. A compatible evaluation instrument needs to be developed to optimize students’ adaptive mathematical reasoning skills. However, the evaluation instrument claimed appropriate for use is not available, particularly in Universitas Serang Raya. The feasibility of the evaluation instrument measured by the compliance of validity and reliability criteria during the development process. Hence, the purpose of this study is to develop an instrument for evaluating students' mathematical adaptive reasoning skills. Descriptive analysis used as the research approach, specifically in content analysis and expert review on the validity of the instrument through the instructional phases design stages, namely analysis and design, development and evaluation. In general, the test results of the validators’ readability show the value of Asymp. Sig. > 0.05 means that the validators stated an equivalent consideration to the validity of the mathematical adaptive reasoning skills instrument. Thus the evaluation instrument in the form of test questions can be used to measure students’ mathematical adaptive reasoning specifically in the Limit.]]>
<![CDATA[Guided Worksheet Formal Definition of Limit: An Instrument Development Process ]]>
<![CDATA[Rina Oktaviyanthi]]>;
<![CDATA[Ria Noviana Agus]]>
<![CDATA[ AL-ISHLAH: Jurnal Pendidikan Vol 13, No 1 (2021): AL-ISHLAH: JURNAL PENDIDIKAN ]]>
Publisher : <![CDATA[STAI Hubbulwathan Duri ]]>
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DOI: 10.35445/alishlah.v13i1.483
<![CDATA[This study aims to develop a guided worksheet to fulfil the needs of students to understand the formal concept of Limit. This was carried out using a developmental study that focuses on content analysis and expert review through substantial analysis, structural design, prototype development and evaluation. The research sample was 95 first-year students, especially those in engineering and science majors who enrolled in Calculus. The data process of instrument development, the data of expert validation, and the data of limited trial were produced in this research. To assess all the research data applied the Q-Cochran and the Cronbach Alpha statistical test. The results are a guided worksheet for limit evaluation in visual form with schematic design and scaffolding or framework type. Expert testing and limited testing showed Asymp.Sig. = 0,088 0,05 and rcoefficient = 0,382 rcritical = 0,2017. It indicates that the items composing this guided worksheet are valid and reliable therefore, they can be used to solve student difficulties related to the formal rules of Limit.]]>
<![CDATA[EKSPLORASI KEMAMPUAN PEMECAHAN MASALAH BERDASARKAN KATEGORI PROSES LITERASI MATEMATIS ]]>
<![CDATA[Rina Oktaviyanthi]]>;
<![CDATA[Ria Noviana Agus]]>
<![CDATA[ Jurnal Pendidikan Matematika Vol 13, No 2 (2019) ]]>
Publisher : <![CDATA[Universitas Sriwijaya ]]>
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DOI: 10.22342/jpm.13.2.7066.163-184
<![CDATA[Pemahaman mahasiswa dalam mengerjakan prosedur pemecahan masalah matematika dapat ditelusuri melalui kegiatan eksplorasi. Tujuan utama dilakukannya penelitian ini adalah memaparkan dan menggali kemampuan pemecahan masalah mahasiswa ditinjau dari kategori proses literasi matematis. Metode yang digunakan yakni kualitatif deskriptif eksploratif dengan subjek penelitian yaitu tiga mahasiswa (kemampuan tinggi, sedang dan rendah) tahun pertama semester II pada program studi Pendidikan Matematika, Universitas Serang Raya dan mengambil mata kuliah Kalkulus II. Instrumen utama adalah peneliti sendiri, sementara instrumen bantu berupa dua soal pemecahan masalah dari materi Aplikasi Turunan yang telah divalidiasi dan pedoman wawancara. Prosedur analisis data dilakukan melalui analisis kualitatif hasil tes tulis dan validasi data menggunakan triangulasi teknik. Hasil eksplorasi menunjukkan mahasiswa kemampuan rendah berada pada kategori kemampuan pemecahan masalah cukup dengan capaian penilaian 62,5%, sementara mahasiswa kemampuan sedang berada pada kategori cukup dan baik dengan capaian penilaian 87,5%, dan mahasiswa kemampuan tinggi berada pada kategori baik dengan capaian penilaian 93,75%.]]>
<![CDATA[The Influence of the Model Problem Based Instruction On Mathematical Problem-Solving Skills of Students On the Material Perform the Operation Form of Algebra ]]>
<![CDATA[Rina Oktaviyanthi]]>
<![CDATA[ International Journal Of Humanities Education and Social Sciences (IJHESS) Vol 1 No 1 (2021): IJHESS - AGUSTUS 2021 ]]>
Publisher : <![CDATA[CV. AFDIFAL MAJU BERKAH ]]>
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DOI: 10.55227/ijhess.v1i1.32
<![CDATA[perform the operation form of the algebra. The purpose of this study is to determine whether the ability of mathematical problem solving of students who obtained learning using the model of Problem Based Instruction is better than on mathematics problem solving ability of students who obtained learning using the conventional method of learning and how students ' attitudes towards learning mathematics using the model of Problem Based Instruction. The instruments used are : (1) Test the ability of early mathematics, (2) Test the ability of mathematical problem solving, (3) the response of students, (4) the observation Sheet. The instrument has met the terms validity and reliability coefficient of r_xy= 0,86 and t_hitung= 9,383. This type of research is quasi-experiment. Sample experiment 32 students, a control sample of 32 students random sampling. The object of research: problem-solving abilities. The research Data the initial test, final test and questionnaire of students ' attitudes.Of the research problem solving obtained F_(count )= 8,79 > F_(table )= 4,15 there are differences in the improvement of mathematics problem solving ability of students who are given the PBI compared with students who were given the PMK. Conclusion : There is the influence of problem-solving ability of mathematics students who received problem-based learning model (Problem Based Intruction) is better than the mathematics problem solving ability of students who obtain a model of conventional teaching.]]>
