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All Journal Kreano, Jurnal Matematika Kreatif-Inovatif Jurnal Elemen Journal of Medives IRJE (Indonesian Research Journal in Education) Edumatica: Jurnal Pendidikan Matematika JRAMathEdu (Journal of Research and Advances in Mathematics Education)
Siska Firmasari, Siska
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Humanities Education Languange, Linguistic, Communication & Media Mathematics Social Sciences Other

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Desain Bahan Ajar Analisis Real dengan Taksonomi Solo Dilengkapi Soal-Soal Bentuk Superitem Firmasari, Siska; Pramuditya, Surya Amami
Jurnal Elemen Vol 4, No 1 (2018): Jurnal Elemen
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (525.149 KB) | DOI: 10.29408/jel.v4i1.502

Abstract

Real Analysis is a compulsory subject for the 3rd grade students of Mathematics Education that most of students  are considered it as a difficult course, due to the abstract of material especially on the matter of the Real Numbers. The purpose of this research is to design learning materials with SOLO taxonomy completed with such a multilevel exercise form super item to obtain a valid learning materials and practical to address the difficulties of students in learning the material of Number Real. This research uses research methods of modified Plomp. The referred design in this research is the design of learning materials. The results show that 1) The material design includes in valid criteria, based on the average value of validation materials of 4.52; 2) The practicality of material design is gained from the results of students positive response that is  91.96% and a good ability of the lecturer in teaching using materials that have been compiled.
Kemampuan Pembuktian Matematis Mahasiswa Menggunakan Induksi Matematika Firmasari, Siska; Sulaiman, Herri
Jurnal Pendidikan Matematika IKIP Veteran Semarang Vol 3 No 1 (2019): Journal of Medives : Journal of Mathematics Education IKIP Veteran Semarang
Publisher : Institut Keguruan dan Ilmu Pendidikan Veteran Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31331/medivesveteran.v3i1.642

Abstract

Kemampuan mahasiswa dalam melakukan pembuktian matematis tidak sama bergantung dari kategori kognitifnya. Salah satu metode pembuktian matematika adalah induksi matematika yang memerlukan pemahaman konsep secara sistematis. Tujuan penelitian adalah untuk mengetahui kemampuan pembuktian matematis mahasiswa yang memiliki kategori kognitif tinggi dan rendah menggunakan induksi matematika. Subjek penelitian ini adalah empat orang mahasiswa tingkat tiga Program Studi Pendidikan Matematika dengan klasifikasi dua orang mahasiswa memiliki kemampuan kognitif tinggi dan dua mahasiswa berkemampuan rendah. Instrumen penelitian yang digunakan adalah lembar tes materi induksi matematika dan pedoman wawancara. Penelitian ini merupakan penelitian deskriptif yang mendeskripsikan kemampuan pembuktian matematis mahasiswa dalam menyelesaikan soal terkait induksi matematika disesuaikan dengan kemampuan kognitif tinggi dan rendah. Hasil penelitian menunjukkan bahwa mahasiswa dengan kategori kognitif tinggi mampu menyelesaikan setiap langkah pembuktian secara benar namun belum sistematis, sedangkan yang berkemampuan kognitif rendah tidak memahami alur pembuktian pada langkah induksi, kekeliruan memahami sifat distributif, dan ketidakteraturan menghubungkan setiap langkah pembuktian. Melalui artikel ini, peneliti berharap dapat menganalisis perlakuan yang tepat pada mahasiswa saat mengajar berbagai materi matematika yang menggunakan prasyarat induksi matematika. Kata kunci: pembuktian matematis, induksi matematika, kemampuan kognitif.   ABSTRACT The students’ ability to perform mathematical proof is different depending on their cognitive category. One of mathematical proofing is mathematical induction which requires concepts understanding systematically. The purpose of this research is to know the ability of mathematical proof using mathematical induction of high and low cognitive category students. The subjects of this study are four third graders of Mathematics Education Study Program. Two students have high cognitive ability and the others have low cognitive ability. The mathematical induction material test sheet and interview guideline are used as research instruments. This is a descriptive research which describes the mathematical proof ability of students in solving problems related to mathematical induction adjusted with high and low cognitive ability. The results show that students with high cognitive category are able to complete each step of proof correctly but not systematically. At the same time, the students with low cognitive ability are not understand the proof steps at the induction step, the misunderstood the distributive property, and the irregularity connect the proof steps. The researcher expects to analyze the appropriate treatment to the students while teaching mathematical materials using mathematical induction prerequisites. Keywords: mathematical proof, mathematical induction, cognitive ability.
The evolution of Indonesian curriculum: Hypothetical learning trajectory for mastery of mathematical and computational thinking Firmasari, Siska; Tatang Herman; Elah Nurlaelah
JRAMathEdu (Journal of Research and Advances in Mathematics Education) Volume 8 Issue 4 October 2023
Publisher : Lembaga Pengembangan Publikasi Ilmiah dan Buku Ajar, Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jramathedu.v8i4.2116

Abstract

Some conditions are unconcerned with students believing they are learning mathematics. Students' disinterest increases when the situation is online learning due to the COVID-19 pandemic. In that case, fully online learning reduces students' mathematical and computing abilities. Therefore, this study aims to obtain a hypothetical learning trajectory in mathematics learning in constructing the skills to master mathematical and computational thinking for secondary school students. This study used part of the research development method of validation research which focuses on Hypothetical Learning Trajectory (HLT). The preparation of the HLT focuses on mastering the mathematical and computational thinking skills of junior high school students using teaching materials, learning media, and evaluation instruments on rank number and square roots materials. The subjects in this study were 30 junior high school students in class IX who took mathematics classes. The series of activities and forms of student learning assumptions become one complete trajectory for the purpose of learning achievement. A Hypothetical Learning Trajectory (HLT) was developed based on the findings of an analysis of the activities of the Junior High School Mathematics curriculum suite and PISA 2021, test results, initial observations during the learning process, and interviews with students and teachers. HLT preparation has an impact on creating learning designs that are ready to be continued at the implementation stage in the following class.
Matematika dalam Konsep Lingkaran: Membuat Alat Pembelajaran Digital yang Menghormati Warisan Budaya Aminah, Neneng; Firmasari, Siska; Junaedi, Lidiya; Nurfarikha, Cicih
Edumatica : Jurnal Pendidikan Matematika Vol 15 No 2 (2025): Edumatica: Jurnal Pendidikan matematika (Agustus 2025)
Publisher : Department of Mathematics Education, Faculty of Teacher Training and Education, Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/edumatica.v15i2.44894

Abstract

This research aims to develop mathematics learning media called ETNOSIKA-AR, which combines visual-interactive concepts with the local cultural values of the Kaliwadas Ancient Well Site in circular materials to improve students' understanding of concepts. Media development is carried out based on the ADDIE model, consists of five systematic stages: needs analysis, design, development, implementation, and evaluation. This research was conducted in June and involved high school students in class X in Cirebon. The validation results by three experts show that this media is included in the very valid category, with percentages of 94.7%, 97.9%, and 96.8%, respectively. A practicality test was conducted involving 31 high school students, and the results showed that 77% of students stated that this medium was practical, and 13% said it was very practical. On the other hand, only 10% consider it less valuable. The analysis showed that 77.42% of students were in the high N-Gain category, and 22.58% were in the medium category, with no students in the low category, with an average N-Gain score of 0.7762. These findings show that ETNOSIKA-AR media effectively improve understanding of circular matter. This media also succeeds in presenting interesting and meaningful learning by integrating cultural and technological aspects.
Kemampuan Pemahaman Konsep Matematis Siswa pada Materi SPLDV Menggunakan Soal-soal Berbasis Taksonomi SOLO Fathonah, Dede; Hapsari, Trusti; Firmasari, Siska
Edumatica : Jurnal Pendidikan Matematika Vol 11 No 2 (2021): Edumatica: Jurnal Pendidikan Matematika
Publisher : Department of Mathematics Education, Faculty of Teacher Training and Education, Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (796.734 KB) | DOI: 10.22437/edumatica.v11i02.12156

Abstract

Story questions have level of abstraction characteristics. In the story question, it can be seen that the student' abstract extended level by changing the pattern questions according to the indicators of high-level mathematical thinking. This study aims to determine the ability of students to understand mathematical concepts in the SPLDV material using SOLO Taxonomy-based questions and student responses in working on these questions. When researchers did a teaching practice at a vocational high school in Cirebon district, they found that the students' ability to understand concepts was still low, this was confirmed by interviews with students that they did not understand SPLDV questions, especially in making mathematical models of a story problem. This research is located in one of the Vocational High Schools in Cirebon Regency. The subjects of this study were 21 class X students. The researcher used a descriptive method with a qualitative approach because the researcher wanted to find out more about how students understood mathematical concepts in the SPLDV material using SOLO Taxonomy-based questions. The results of this study were the students' ability to understand mathematical concepts in the SPLDV Material Using SOLO Taxonomy-based questions was still very low, namely 37.10% and the responses given by students were positive for the use of questions based on the use of SOLO Taxonomy-based questions.
Computational thinking Skills from the perspective of students’ self-confidence in mathematics learning Firmasari, Siska; Nopriana, Tri; Pujiana, Firda
Indonesian Research Journal in Education |IRJE| Vol. 9 No. 01 (2025): IRJE |Indonesian Research Journal in Education|
Publisher : Universitas Jambi, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/irje.v9i01.37228

Abstract

This research aimed to analyze computational thinking skills from the perspective of students' self-confidence in mathematics learning, employing a qualitative approach and a case study method. The subjects of this research consisted of thirty-five students from tenth grade, selected based on self-confidence—categorized as high, moderate, and low. Data collection techniques included a computational thinking skills test focused on systems of linear equations in two variables, a self-confidence questionnaire, and interviews. The findings reveal that students with high self-confidence demonstrated the ability to meet all indicators of computational thinking skills. In contrast, students with moderate self-confidence could only fulfill two indicators—decomposition and algorithmic thinking—indicating that they struggled with pattern recognition and abstraction. Meanwhile, students with low self-confidence exhibited limited computational thinking skills, with some meeting only the decomposition indicator and others failing to meet any expected indicators.
Rigorous Mathematical Thinking: Conceptual Knowledge and Reasoning in the Case of Mathematical Proof Firmasari, Siska; Herman, Tatang; Firdaus, Eris Fanny
Kreano, Jurnal Matematika Kreatif-Inovatif Vol 13, No 2 (2022): Kreano, Jurnal Matematika Kreatif-Inovatif
Publisher : Mathematics Dept, Math. and Science Faculty, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/kreano.v13i2.34536

Abstract

This study aims to analyze in-depth students' conceptual knowledge and reasoning when solving problems using mathematical proof as a rigorous mathematical thinking paradigm. The research uses a qualitative method with a case study approach that analyzes the mathematical proof ability of nine students who represent different cognitive functions from each level of rigorous mathematical thinking. The results showed that each level of rigorous mathematical thinking meant other indicators according to their ability to master conceptual knowledge and implement mathematical ideas through reasoning. This research has an impact on the treatment that the teacher must give in determining the learning model and evaluation instrument that can raise students' conceptual knowledge and reasoning.Penelitian ini bertujuan untuk menganalisis secara mendalam pengetahuan konseptual dan penalaran siswa ketika memecahkan masalah menggunakan pembuktian matematis sebagai paradigma berpikir matematis yang ketat. Penelitian ini menggunakan metode kualitatif dengan pendekatan studi kasus yang menganalisis kemampuan pembuktian matematis sembilan siswa yang mewakili fungsi kognitif yang berbeda dari setiap tingkat pemikiran matematis yang teliti. Hasil penelitian menunjukkan bahwa setiap tingkat berpikir matematis yang teliti berarti indikator lain sesuai dengan kemampuannya untuk menguasai pengetahuan konseptual dan mengimplementasikan ide-ide matematika melalui penalaran. Penelitian ini berdampak pada perlakuan yang harus diberikan guru dalam menentukan model pembelajaran dan instrumen evaluasi yang dapat meningkatkan pengetahuan konseptual dan penalaran siswa.
Co-Authors Dina Pratiwi Dwi Santi Elah Nurlaelah Fathonah, Dede Firdaus, Eris Fanny Hapsari, Trusti Herri Sulaiman, Herri Junaedi, Lidiya Neneng Aminah Nurfarikha, Cicih Pujiana, Firda Surya Amami Pramuditya Tatang Herman, Tatang Tonah, Tonah Tri Nopriana, Tri