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Kiki Nia sania Effendi

Universitas Singaperbangsa Karawang

Author-ID : 2837949

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Profil Gaya Berpikir Peserta Didik dalam Menyelesaikan Soal Matematika pada Materi Trigonometri Intan Larasati; Kiki Nia Sania Effendi
JP3M (Jurnal Penelitian Pendidikan dan Pengajaran Matematika) Vol 8, No 2 (2022)
Publisher : Program Studi Pendidikan Matematika, FKIP, Universitas Siliwangi, Tasikmalaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37058/jp3m.v8i2.5802

The purpose of this research was to describe the mind style of students in solving mathematics problem at trigonometry material. The research was conducted in one of high school in Karawang district for 33 students in class XI IPA 1. Data’s collection of this research was obtained by giving mind style’s delineator, mathematics problem’s test, and interview. The subjects of this research were 4 students whom selected by using purposive sampling technique as the representation of each type of mind style. The data analysis of this research was using Miles and Huberman’s interactive model through the stages of data’s reduction, data’s display, and verification. The results of this research showed that there were 7 students had Concrete Sequential’s mind style, 6 students had Abstract Sequential’s mind style, 14 students had Concrete Random’s mind style, and 6 other students had Abstract Random’s mind style. Therefore, it can be concluded that the dominant’s mind style of students in XI IPA 1 was Abstract Random’s mind style.

ANALISIS KEMAMPUAN SELF-EFFICACY MATEMATIS BERDASARKAN JENIS KELAMIN PADA SISWA SMPN KELAS IX Dhaniec Wahyo; Kiki Nia Sania Effendi
Prosiding Sesiomadika Vol 4 No 1 (2023): Seminar Nasional Matematika dan Pendidikan Matematika
Publisher : Prosiding Sesiomadika

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Penelitian ini bertujuan untuk mengetahui kemampuan self-efficacy matematis terhadap siswa Sekolah Menengah Pertama Negeri 1 Kedung Waringin dalam pembelajaran matematika yang ditinjau berdasarkan gendernya. Self-efficacy matematis erat kaitannya dengan individu terhadap kemampuan yang dimiliki dalam memecahkan suatu masalah, Self-efficacy matematis atau efikasi diri memiliki peranan besar dalam banyak hal, salah satunya adalah dalam pembelajaran matematika, dengan kemampuan efikasi diri yang tinggi siswa dapat dengan mudah memecahkan permasalahan dalam pembelajaran matematika. Penelitian ini merupakan sebuah penelitian yang menggunakan metode deskriptif kuantitatif. Teknik pengumpulan data yang digunakan yaitu melalui angket Self-efficacy matematis yang dilakukan terhadap subjek siswa Sekolah Menengah Pertama Negeri 1 Kedung waringin kelas IX. Berdasarkan hasil analisis yang dilakukan melalui data angket Self-efficacy matematis, maka diperoleh sebuah hasil sesuai dengan indikator self-efficacy matematis bahwa siswa perempuan lebih unggul dalam : Tindakan untuk menyelesaikan tugas berdasarkan tingkat kesulitannya dan keyakinan individu dalam menyelesaikan tugas, serta keyakinan individu dalam kemampuan yang dimiliki.

Analisis Kemampuan Komunikasi Matematika Siswa SMP pada Materi Aljabar Naflah Aulia Ashaningtyas; Kiki Nia Sania Effendi
Prosiding Sesiomadika Vol 4 No 1 (2023): Seminar Nasional Matematika dan Pendidikan Matematika
Publisher : Prosiding Sesiomadika

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Kemampuan komunikasi matematis merupakan kemampuan yang dimiliki siswa dalam mengungkapkan pemikirannya ke dalam kalimat atau simbol matematika dan bahasa sehari-hari. Penelitian ini bertujuan untuk menelaah dan menganalisis mengenai kemampuan komunikasi matematis siswa dalam menyelesaikan persoalan matematika yang berkaitan dengan materi aljabar. Pendekatan penelitian yang digunakan adalah pendekatan kuantitatif dengan metode deskriptif. Populasi pada penelitian ini adalah siswa kelas VIII di salah satu satu sekolah menengah pertama (SMP) swasta di Kabupaten Bekasi tahun pelajaran 2022/2023 sebanyak 17 orang siswa. Instrumen yang digunakan adalah instrumen soal tes kemampuan komunikasi matematis dengan bentuk uraian. Hasil penelitian ini menunjukan bahwa kemampuan komunikasi sistematis siswa masih tergolong rendah dikarenakan hasil nilai tes siswa yang belum mencapai nilai Kriteria Ketuntasan Minimum (KKM) dengan nilai maksimum yaitu 50. Kata kunci : matematika, komunikasi matematis, dan materi aljabar.

Analysis of students' mathematical reasoning ability in class IX in solving SPLDV problems Wilya Rahma Tresna; Kiki Nia Sania Effendi
UNION : Jurnal Ilmiah Pendidikan Matematika Vol 11 No 1 (2023)
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/union.v11i1.13394

This study aims to determine the mathematical reasoning ability of students in one of the State Junior High Schools in Karawang Regency in solving two-variable system of linear equations. The method used is a descriptive method with a qualitative approach. The subjects in this study were 32 students of class IX E. The data collection technique was carried out by giving a mathematical reasoning ability test sheet in the form of a description of 4 questions. The data analysis technique used in this study is based on Miles and Huberman's data analysis technique which consists of data reduction, data presentation, and drawing conclusions. The results of this study indicate that the test scores of students' mathematical reasoning abilities are classified as very low, because there are only 2 students who achieve the KKM score. Then also indicated by the percentage value there are 2 students with a percentage of 6% in the high category, 23 students with a percentage of 72% in the medium category and 7 students with a percentage of 22% in the low category.

Numeration ability of junior high school students in solving numeration problems algebra material Falentine Handiani Fitri; Kiki Nia Sania Effendi
UNION : Jurnal Ilmiah Pendidikan Matematika Vol 11 No 1 (2023)
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/union.v11i1.13395

This research is a qualitative descriptive research conducted to describe the completion of numeracy problems and determine the level of numeracy ability of junior high school students. The subjects in this study were 34 students who were grade VIII junior high school students in Ciledug District. The research instrument is a written test with three numeracy ability test description questions where each question contains three indicators of numeracy ability. The results showed that the numeracy ability of junior high school students was still classified as low, because there were 19 students who were only able to meet a maximum of one numeracy ability indicator. The percentage of numeracy ability test acquisition is 11.76% of students in the high category, 32.35% of students in the medium category, and 55.88% of students have low numeracy ability.

Pelatihan Deep Learning bagi Guru Sekolah Dasar dalam Pembelajaran Matematika di Era Digital Iyan Rosita Dewi Nur; Ine Rahayu Purnamaningsih; Kiki Nia Sania Effendi; Cut Nuraini; Hamdanah Hamdanah; Kartini Kartini; R. Euis Sulastri; Ratu Firdausi Rahman; Nuniek Noermala
J-ABDIPAMAS (Jurnal Pengabdian Kepada Masyarakat) Vol. 10 No. 1 (2026): April 2026
Publisher : IKIP PGRI Bojonegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30734/j-abdipamas.v10i1.5284

ABSTRACT This Community Service activity aims to improve the understanding and ability of elementary school teachers in implementing deep learning in mathematics subjects in the digital era. Problems faced by partners include teachers' low understanding of the concept of deep learning and low literacy and numeracy skills of students. Implementation methods include lectures, training, seminars, and discussion forums to strengthen teacher competencies related to the concepts, theories, and implementation of deep learning-based learning. The results of the activity show an increase in teacher knowledge and skills in designing more interactive, contextual, and student-centered mathematics learning. In addition, ongoing discussion forums provide support for teachers in overcoming implementation obstacles in the field. This program contributes to encouraging improvements in the quality of mathematics learning in elementary schools and teacher readiness to face educational challenges in the digital era. Keywords: Training, Deep Learning, Mathematics, Learning, Digital Era ABSTRAK Kegiatan Pengabdian kepada Masyarakat ini bertujuan meningkatkan pemahaman dan kemampuan guru sekolah dasar dalam mengimplementasikan pembelajaran deep learning pada mata pelajaran matematika di era digital. Permasalahan yang dihadapi mitra meliputi rendahnya pemahaman guru terhadap konsep deep learning serta rendahnya kemampuan literasi dan numerasi siswa. Metode pelaksanaan mencakup ceramah, pelatihan, seminar, dan forum diskusi untuk memperkuat kompetensi guru terkait konsep, teori, serta penerapan pembelajaran berbasis deep learning. Hasil kegiatan menunjukkan peningkatan pengetahuan dan keterampilan guru dalam merancang pembelajaran matematika yang lebih interaktif, kontekstual, dan berpusat pada siswa. Selain itu, forum diskusi yang berkelanjutan memberi dukungan bagi guru dalam mengatasi kendala penerapan di lapangan. Program ini berkontribusi dalam mendorong peningkatan kualitas pembelajaran matematika di sekolah dasar dan kesiapan guru menghadapi tantangan pendidikan di era digital. Kata Kunci: Pelatihan, Pembelajaran Mendalam, Matematika, Pembelajaran, Era Digital

Analisis kesulitan siswa pada materi teorema Pythagoras ditinjau dari kemampuan numerik Azfa Nur Aqilah; Attin Warmi; Hanifah Hanifah; Kiki Nia Sania Effendi
JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol. 9 No. 1 (2026): JPMI
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jpmi.v9i1.28690

This study aims to analyze the difficulties of junior high school students in solving mathematics problems on the Pythagorean Theorem material in terms of numerical ability based on the limitations of specific studies on numerical barriers affecting students' accuracy in applying the Pythagorean concept. The approach used is qualitative with a case study method. The research subjects consisted of 24 ninth-grade students at an Islamic junior high school in East Karawang, selected through purposive sampling based on the subject teacher's recommendations regarding learning barrier characteristics. The instruments used were a numerical ability test, Pythagorean Theorem questions, and interview guidelines. The results showed that the majority of students had low numerical ability and experienced difficulties in various indicators, such as performing calculations, thinking logically, problem solving, and recognizing number patterns. Even students with high numerical ability still had difficulty determining the slant side in Pythagorean problems. These findings indicate the importance of considering numerical ability in the learning process to develop more targeted and personalized learning methods.

Students’ Mathematical Critical Thinking Processes in Solving Algebraic Problems: A Qualitative Analysis Based on Watson–Glaser Indicators Merlina Dwi Astuti; Attin Warmi; Kiki Nia Sania Effendi
Jurnal Didactical Mathematics Vol. 8 No. 1 (2026): April 2026
Publisher : Program Studi Pendidikan Matematika, Universitas Majalengka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31949/dm.v8i1.16564

Mathematical critical thinking is a fundamental competence required for effective algebraic problem solving; however, many students experience difficulties that extend beyond procedural errors. This study aims to analyze junior secondary students’ mathematical critical thinking processes in solving algebraic problems based on the Watson–Glaser critical thinking indicators. Employing a qualitative descriptive design, the study involved 40 seventh-grade students from a public junior high school in Indonesia. Written test data were used to describe the overall distribution of students’ critical thinking levels, while in-depth qualitative analysis was conducted on three purposively selected students representing high, moderate, and low ability levels. Data were analyzed through indicator-based scoring and qualitative content analysis supported by interview data. The findings reveal that students’ mathematical critical thinking ability was predominantly low, with major difficulties in deductive reasoning and the evaluation of arguments. Qualitative results indicate distinct reasoning patterns across ability levels: high-ability students demonstrated coherent reasoning but weak communication of conclusions, moderate-ability students showed fragmented and inconsistent reasoning, and low-ability students relied heavily on intuitive guessing with limited conceptual understanding. These findings highlight the need for process-oriented, differentiated instructional strategies that explicitly foster critical thinking in algebraic learning.

Developing of Worksheets on Single and Group Data with A Basketball Context Meida Rosita; Kiki Nia Sania Effendi
Mathline : Jurnal Matematika dan Pendidikan Matematika Vol. 11 No. 2 (2026): Mathline : Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas Wiralodra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/mathline.v11i2.1058

This study aims to develop worksheets in the context of basketball on single data and group data with valid and practical criteria, which have the potential to have a positive impact on mathematics learning. The research used a development studies type of design research approach, which included three stages, namely the introduction stage, the prototype stage, and the assessment stage. Formative evaluation was applied through self evaluation, expert review, one-to-one evaluation, small group trials, and field test. The research instruments included documentation, interviews, and practicality questionnaires that were analyzed. The research subjects were eighth-grade students at a junior high school in Karawang. The results showed that the developed worksheet met the criteria of validity, practicality, and effectiveness. Students showed high enthusiasm in participating in learning activities because the basketball context used made learning activities more meaningful, enjoyable, and easy to understand. Based on data analysis, the basketball-based worksheet was declared valid and practical for use in statistics learning in junior high schools. This product has the potential to improve the achievement of learning objectives related to data types in statistics.

Creative Thinking Ability of Vocational School Students in Contextual Trigonometry Learning Using Futsal Adinda Sahira; Kiki Nia Sania Effendi; Rika Mulyati Mustika Sari
Journal of General Education and Humanities Vol. 5 No. 2 (2026): April
Publisher : MASI Mandiri Edukasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58421/gehu.v5i2.1264

This study explores the limited use of contextual approaches in fostering creative thinking in trigonometry learning. This study aims to determine the difference in creative thinking test scores of vocational high school students before and after learning trigonometry in the context of futsal. This study used a quantitative method with a pre-experimental design and a one-group pretest-posttest form, with 27 tenth-grade students as the sample. The instrument used was a mathematical creative thinking ability test with futsal-contexted trigonometry material. Data analysis included descriptive statistics, the Shapiro-Wilk normality test, the Wilcoxon test, and N-Gain. Descriptive results showed that creative thinking ability was in the moderate range (63%) and increased from 41.81 to 77.26 between the pretest and posttest. The Wilcoxon test showed that Ho was rejected and Ha accepted, indicating a difference in creative thinking skills before and after the treatment (0.000 < 0.05), with an N-Gain score of 0.77. Therefore, it was concluded that the futsal sports context in trigonometry material yielded good results, with a noticeable difference before and after classroom learning.

Co-Authors Abd. Rasyid Syamsuri Adinda Sahira Alpha Galih Adirakasiwi Amelia Andrie Chaerul Aprianti Nur Alyah atika pratiwi Attin Warmi Ayu Aprilianti Dwi Fani Azfa Nur Aqilah Cut Nuraini Dadang Rahman Munandar Dadang Saparudin Dany Aulia Dhaniec Wahyo Diki Laksono Elna Mar'atussholihah Elva Nuranggraeni elva nuranggraeni Evi Fazzilah Evi Fazzilah Falentine Handiani Fitri Farlina, Ehda Gumilar, Cecep Bermana Sakti Haerudin, Haerudin Haerudin Hamdanah Hamdanah Hanifah Hanifah Humawida Muthianisa Ibrahim Hasan Iim Muhijah Ikhsan Baihaqi Indah Mutiara Cahya Indrie Noor Aini Ine Rahayu Purnamaningsih Intan Larasati Ita rosita Iyan Rosita Dewi Nur Kartini Kartini Karunia Eka Lestari Khoirunisa Aisha Sabrina Khoirunnisa Cahani Khoirunnisa Cahani Komarudin Muhamad Zaelani Kusmayadi, Odang Leli Nurlaeli Lessa Roesdiana Mardotillah Angelina Meida Rosita Merlina Dwi Astuti Mimin Maryati mutia mutia Naflah Aulia Ashaningtyas Nia Imanisa Nuniek Noermala Nur Afifatus Sakiah Nur Ridzkiyah Nur'aini Mar'atush Sholihat Nurul Badriyah Nurul Badriyah R. Euis Sulastri R. Poppy Yaniawati Rafiq Zulkarnaen Ramlah Ratu Firdausi Rahman Ratu Ilma Indra Putri Rika Mulyati Mustika Sari Rina Marlina Risna Dwi Lestari Shofa Raini Fadilah Sholihat, Nur'aini Mar'atush Siti Alip Munaroh Siti Ina Rosyana Siti Nurdiana Siti Romlah Rahmayani Siti Wasillah Djuniakh Sitompul, Marchtina Theresa Sri Mulyaningsih Sri Rizki Hardianti Sutirna Tarizka Ozzi Pratiwi Tedi Setiadi Umaira Arfah Vida Utami Wilya Rahma Tresna WULAN NURAENI Yaniawati, Poppy Yeremita Nurhalin Zulkardi Zulkardi Zulkardi Zulkardi

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