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All Journal Jurnal Pengajaran MIPA Jurnal Infinity AKSIOMA: Jurnal Program Studi Pendidikan Matematika Transformasi: Jurnal Pengabdian Masyarakat Jurnal Analisa IndoMath: Indonesia Mathematics Education International Journal on Emerging Mathematics Education Jurnal Cendekia : Jurnal Pendidikan Matematika Indonesian Journal on Learning and Advanced Education (IJOLAE) Integral : Pendidikan Matematika Jurnal Abdi Masyarakat Indonesia Jurnal Eurekamatika JURNAL TUNAS PENDIDIKAN JNPM (Jurnal Nasional Pendidikan Matematika) Jurnal Infinity Journal on Mathematics Education Research

Yaya Sukjaya Kusumah

Universitas Pendidikan Indonesia

Author-ID : 2827472

Religion Humanities Computer Science & IT Economics, Econometrics & Finance Education Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mathematics Public Health Other

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THE TEACHERS’ EXPERIENCE BACKGROUND AND THEIR PROFESIONALISM Yulyanti Harisman; Yaya Sukjaya Kusumah; Kusnandi Kusnandi; Muchamad Subali Noto
Jurnal Infinity Vol 8, No 2 (2019): Volume 8 Number 2, Infinity
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v8i2.p129-142

Based on literature review Three categories of teachers are: good, very good, and excellent which are viewed from aspects of beliefs, attitude, depth of pedagogical and didactic aspects, and teacher reflection in the learning process has been obtained in previous studies. Various external aspects are considered to affect teacher professionalism in learning about mathematical problem solving. These aspects need to be studied to maximize the teacher professionalism. This study will examine these external aspects, ranging from teaching experience, educational background, and experience in participating in training to improve teacher competencies. This type of qualitative research with survey methods was chosen as a research method. Three teachers from three junior high schools with different clusters were selected as research subjects. Each teacher is given short questions related to this. The results obtained are the experiences of the trainings that teachers follow in increasing their competence and teacher's educational background have more significant influence on teacher professionalism compared to the experience or length of teacher teaching.

KEMAMPUAN PEMECAHAN MASALAH DAN KEMANDIRIAN BELAJAR MENGGUNAKAN PENDEKATAN STEM BERBASIS LESSON STUDY FOR LEARNING COMMUNITY Andini Dwi Rachmawati; Yaya Sukjaya Kusumah; Dadang Juandi
AKSIOMA: Jurnal Program Studi Pendidikan Matematika Vol 10, No 4 (2021)
Publisher : UNIVERSITAS MUHAMMADIYAH METRO

Abstrak Penelitian ini bertujuan untuk mendeskripsikan kemampuan pemecahan masalah dan kemandriain belajar dengan pendekatan STEM berbasis LSLC (Lesson Study for Learning Community). Subyek penelitian adalah enam peserta didik kelas VII SMPN 1 Ngunut. Pemilihan subyek peserta didik berdasarkan angket kemandirain belajar. Penelitian ini tergolong penelitian kualitatif . Teknik pengumpulan data pada penelitian terdiri dari beberapa tahapan yaitu lembar observasi, angket kemandirian belajar, dan tes kemampuan pemecahan masalah matematika. Analisis data yang diigunakan pada penelitian ini yaitu dengan pengumpulan data, penyajian data, dan verifikasi data. Hasil penelitian ini menunjukkan bahwa aktivitas belajar peserta didik mengalami peningkatan. setiap pertemuan. Perkembangan tersebut dapat ditunjukkan dengan kemampuan pemecahan masalah dengan kemandirian belajar tinggi, mampu menyelesaikan masalah menggunakan empat tahap. Hanya tiga indikator yang dapat dicapai oleh peserta didik yang memiliki kemapuan pemecahan masalah matematika dengan kemandirian belajar sedang Sedangkan peserta didik dengan kemampuan pemecahan masalah matematika dengan kemandirian belajar rendah hanya memenuhi satu indikator saja.Kata kunci: Kemampuan pemecahan masalah; kemandiran belajaran; LSLC pendekatan STEM; Abstract This study aims to describe problem solving skills and independent learning with a STEM approach based on LSLC (Lesson Study for Learning Community). The research subjects were six seventh grade students of SMPN 1 Ngunut. The selection of students' subjects was based on a self-learning questionnaire. This research is classified as qualitative research . The data collection technique in the study consisted of several stages, namely observation sheets, learning independence questionnaires, and mathematical problem solving ability tests. Data analysis used in this study is data collection, data presentation, and data verification. The results of this study indicate that the learning activities of students have increased. every meeting. This development can be shown by problem solving skills with high learning independence, able to solve problems using four stages. Only three indicators can be achieved by students who have mathematical problem solving abilities with moderate learning independence. Meanwhile, students with mathematical problem solving abilities with low learning independence only meet one indicator.Keywords: Problem solving ability, LSLC, learning independence, STEM approach

Spatial Reasoning: A Survey on the 8th Grader Students' Gain in Online Learning Harina Fitriyani; Yaya Sukjaya Kusumah; Turmudi Turmudi
International Journal on Emerging Mathematics Education IJEME, Vol. 5 No. 1, March 2021
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/ijeme.v5i1.20140

Coronaviruses disease (Covid-19) pandemic forces schools to implement schools from home through online learning. This study aims to describe online mathematics learning, examine differences in aspects of spatial reasoning, and spatial reasoning based on gender. We conducted a survey method on 140 participants in one private junior high school in Yogyakarta. Data collection using an spatial reasoning test via Google Form consist of nine questions and direct interview with a teacher through video conference. Data analysis uses descriptive and inferential statistics. The results showed that online mathematics learning using the Google Form platform can assist students with limited facilities in learning process. The research finding showed no difference in spatial reasoning ability between male and female students, including in each aspect of spatial reasoning. In addition, other findings indicate that the aspect of spatial reasoning that students master the most is spatial visualization, while the aspect of spatial reasoning that is the least mastered by students is spatial relations.

The Effect of Realistic Mathematics Approach on Mathematics Learning Outcomes of Junior High School 6 Pekanbaru Astri Wahyuni; Yaya Sukjaya Kusumah; Surgawi Pertiwi
Jurnal Cendekia : Jurnal Pendidikan Matematika Vol 5 No 3 (2021): Volume 5 Nomor 3 Tahun 2021
Publisher : Mathematics Education Study Program

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cendekia.v5i3.1021

The purpose of this study was to determine the effect of Realistic Mathematics Approach on the learning outcomes of seventh grade students of Junior High School 6 Pekanbaru with quasi-experimental. There are two classes that will be sampled, namely the experimental and control classes with purposive sampling as a data collection technique. The data collection method used is a test with descriptive and inferential statistical data analysis techniques. Descriptive statistical analysis technique was used to describe the power obtained from the measurement results of the dependent variable, namely learning outcomes, inferential statistical analysis techniques were used to analyze sample data (pre-test and post-test). The results of descriptive statistical analysis showed that the average pre-test for the experimental and control classes were 50.10 and 54.31, while the post-test averages for the experimental and control classes were 76.79 and 68.13. In this study, the data were normally distributed, with a homogeneity value of 0.752 and when tested t the result was 0.002 < 0.05, so it can be concluded that there is an effect of realistic mathematics approach on student learning outcomes.The purpose of this study was to determine the effect of Realistic Mathematics Approach on the learning outcomes of seventh grade students of Junior High School 6 Pekanbaru with quasi-experimental. There are two classes that will be sampled, namely the experimental and control classes with purposive sampling as a data collection technique. The data collection method used is a test with descriptive and inferential statistical data analysis techniques. Descriptive statistical analysis technique was used to describe the power obtained from the measurement results of the dependent variable, namely learning outcomes, inferential statistical analysis techniques were used to analyze sample data (pre-test and post-test). The results of descriptive statistical analysis showed that the average pre-test for the experimental and control classes were 50.10 and 54.31, while the post-test averages for the experimental and control classes were 76.79 and 68.13. In this study, the data were normally distributed, with a homogeneity value of 0.752 and when tested t the result was 0.002 < 0.05, so it can be concluded that there is an effect of realistic mathematics approach on student learning outcomes.

Peningkatan Kemampuan Pemecahan Masalah Matematis Siswa SMP Melalui Pembelajaran Group Investigation Berbantuan Proyek Wiwit Damayanti Lestari; Yaya Sukjaya Kusumah; Stanley Dewanto
IndoMath: Indonesia Mathematics Education Vol 2 No 1 (2019)
Publisher : Universitas Sarjanawiyata Tamansiswa

The purpose of this study is to examine the differences in the improvement of students' mathematical problem-solving abilities in the classroom with investigation group learning assisted by projects and conventional learning classes. This study included quasi-experimental research with a non-equivalent control group research design. All mathematical problem-solving abilities of class VII students in one of the junior high Schools were the population in this study. Two classes were taken as samples, namely the experimental class applying the project-assisted investigation group and the control class that applied conventional learning. The question of mathematical problem-solving ability was used as an instrument in this study. Data on mathematical problem-solving ability from pretest and posttest then determined normalized gain average between two classes and analyzed using t-test. The results showed that the improvement of students' mathematical problem-solving abilities in the class applying project-assisted group learning was better than students in the class applying conventional learning, but the average increase in the two classes was in the moderate classification. So that project-assisted investigation group learning can be used as an alternative to improve the students' mathematical problem-solving skills in junior high school.

ENHANCING MATEMATICAL COMMUNICATION AND DISPOSITION ABILITIES THROUGH MODEL-ELICITING ACTIVITIES (MEAs) LEARNING Yani Siti Tuadah Afriani; Siti Fatimah; Yaya Sukjaya Kusumah
Jurnal Pengajaran MIPA Vol 22, No 1 (2017): JPMIPA: Volume 22, Issue 1, 2017
Publisher : Faculty of Mathematics and Science Education, Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18269/jpmipa.v22i1.8375

The purpose of this study is to analyze the enhancement mathematical communication ability and the achievement mathematical disposition of junior high school students under Model-Eliciting Activities (MEAs) learning. This study was a quasi-eperimental in one of the junior high schools in Bandung, with the design of non-equivalent control group involving 80 students of grade VII. The instrument used for measuring students ability was a test on mathematical communication, whereas for measuring their mathematical disposition, a questionaire was used . The statistical analysis performed were Mann-Whitney test, and one way ANOVA test. The research results obtained are: (1) the enhancement the students mathematical communication abilities who work under Model-Eliting Activities (MEAs) learning is better than the students who work under conventional learning, (2) there are differences in the improvement in mathematical communication ability between students who have mathematical prior knowledge (KAM) high, midlle, low, (3) the students achievement in mathematical disposition who work under Model-Eliciting Activities (MEAs) learning is better than those who work under conventional learning.

PENGEMBANGAN LEMBAR KERJA PESERTA DIDIK MATERI PECAHAN BERBASIS ANDROID Ratni Purwasih; Yaya Sukjaya Kusumah
AKSIOMA: Jurnal Program Studi Pendidikan Matematika Vol 11, No 2 (2022)
Publisher : UNIVERSITAS MUHAMMADIYAH METRO

Tujuan penelitian adalah pengembangan lembar kerja peserta didik (LKPD) pada materi pecahan berbantuan powerpoint I-spring berbasis android yang valid dan praktis. Metode yang digunakan untuk mengembangkan bahan ajar tersebut adalah penelitian research and development (R&D) dengan model plomp yang meliputi langkah-langkah yaitu 1) fase investigasi awal (preliminary research), 2) fase design/perancangan; 3) fase realisasi/konstruksi; 4) fase tes, evaluasi dan revisi; dan 5) fase implementasi. Penelitian ini tidak sampai pada tahap implementasi karena waktu yang tidak memungkinkan. Instrumen dalam penelitian ini adalah lembar angket validasi, angket respon guru dan angket respon peserta didik. Data penelitian meliputi hasil angket validasi media pembelajaran berbantuan powerpoint I-spring berbasis android oleh para ahli (materi dan media) dan hasil angket praktikalitas oleh peserta didik dan guru kelas. Angket respon guru dan siswa untuk mengukur bagaimana respon guru dan siswa terhadap media yang dikembangkan. Kelayakan media ini dilihat berdasarkan analisis dari lembar validasi dan angket. Hasil penelitian dapat disimpulkan bahwa media ini dinyatakan valid dan sangat praktis dengan perolehan nilai sebesar 96,03%. Artinya LKPD berbantuan powerpoint I-spring berbasis android dapat diimplementasikan pada pengguna sebagai alternatif pembelajaran pada konsep pecahanThe research objective is the development of student worksheets (LKPD) on valid and practical I-spring-assisted powerpoint-assisted fractions material on Android. The method used to develop the teaching materials is research and development (R&D) with a plomp model which includes steps, namely 1) preliminary research phase, 2) design phase; 3) realization/construction phase; 4) test, evaluation and revision phases; and 5) implementation phase. This research did not reach the implementation stage due to time constraints. The instruments in this study were a validation questionnaire sheet, a teacher response questionnaire and a student response questionnaire. The research data are the results of a questionnaire validation of learning media assisted by powerpoint I-spring based on Android by experts (materials and media) and the results of practicality questionnaires by students and classroom teachers. Teacher and student response questionnaire to measure how teachers and students respond to the developed media. The feasibility of this media is seen based on the analysis of the validation sheet and questionnaire. The results of the study can be concluded that this media is declared valid and very practical with a score of 96.03%. This means that the LKPD assisted by powerpoint I-spring based on Android can be implemented by users as an alternative to learning the concept of fractions

Eksplorasi Nilai Filosofis Dan Konseptual Matematis Pada Bangunan Keraton Kasepuhan Cirebon Ditinjau dari Aspek Etnomatematika Diana Ayu Wulandari; Yaya Sukjaya Kusumah; Nanang Priatna
Jurnal Cendekia : Jurnal Pendidikan Matematika Vol 6 No 3 (2022): Jurnal Cendekia: Jurnal Pendidikan Matematika Volume 6 Nomor 3 Tahun 2022
Publisher : Mathematics Education Study Program

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cendekia.v6i3.1421

Salah satu contoh kebudayaan masyarakat yang mengimplementasikan etnomatematika yakni Keraton Cirebon. Peneliti menggunakan metode kualitatif dengan pendekatan etnografi, berlokasi di daerah Keraton Kasepuhan Cirebon, Kecamatan Lemahwungkuk, Kelurahan Kesepuhan. Peneliti mengambil kriteria sampel sumber data dari Abdi Dalem Keraton Kasepuhan, Sultan Keraton Kasepuhan, dan penulis sendiri. Fokus aktivitas pada penelitian ini yakni proses mencari data dengan mengamati konseptual matematis dan menganalisis kaitannya dengan makna dan nilai filosofis kebudayaan pada bangunan Keraton Kasepuhan Cirebon. Pengumpulan data dilakukan pada natural setting, sumber data primer, observasi (pengamatan), wawancara tak berstruktur, triangulasi, catatan lapang, dan dokumentasi (rekaman suara dan foto). Hasil penelitian membuktikan bahwasannya nilai filosofis yang tertuang pada atap pintu masuk Keraton Kasepuhan Cirebon, di mana berbentuk Ikon Cirebon yaitu Mega Mendung. Pada Motif Mega Mendung meliputi gradasi warna pada lapisan awan dan mempunyai lapisan awan ganjil 5, 7, dan 9 yang diartikan 5 melambangkan rukun Islam, 7 melambangkan 7 lapisan langit, serta 9 lapisan melambangkan jumlah Sunan Wali Songo. Sedangkan konsep matematisnya yakni konsep geometris pencerminan pada lengkungan pintu masuk Keraton Kasepuhan Cirebon. Penulis dengan penelitian ini memberikan saran bahwasannya kebudayaan yang terdapat di sekitar kita dapat dimasukkan ke dalam proses pembelajaran di sekolah dengan pembelajaran berbasis etnomatematika guna mempermudah siswa dalam mengimplementasikan materi ke dalam kehidupan sehari-hari dan lingkungan setempat.

PENERAPAN PENDEKATAN MODEL-ELICITING ACTIVITIES (MEAS) DALAM PEMBELAJARAN MATEMATIKA UNTUK MENINGKATKAN KEMAMPUAN BERPIKIR KRITIS SISWA SMP Tresna Nur’aviandini; Yaya Sukjaya Kusumah; Bambang Avip Priatna
Integral : Pendidikan Matematika Vol 9 No 1 (2018): INTEGRAL
Publisher : Program Studi Pendidikan Matematika, FKIP Universitas Muhammadiyah Cirebon

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

This study is motivated by the problem of student’s critical thinking skill. The purpose of this study are: 1) to investigate whether students who undertake mathematics learning with Model-Eliciting Activities (MEAs) approach have higher improvement in critical thinking skill compared to those who undertake learning with conventional; 2) to investigate students’ mathematical disposition towards mathematics learning under Model-Eliciting Activities (MEAs) approach. This study used quasi-experimental methods, while the population were all students of 8th grade of SMP Negeri 2 Cimahi, Academic Year 2012/2013. The test and non-test instruments were deployed in this study. The kind of test instruments used in this research was essay based on indicator of critical thinking skill and non-test instruments were in the forms of questionnaire, observation sheet, and students’ daily jounal. The results of this study show that: 1) students who undertake mathematics learning with Model-Eliciting Activities (MEAs) approach have higher improvement in critical thinking skill compared to those who undertake mathematics learning with conventional approach; 2) students’ enhancement on mathematical disposition towards mathematics learning under Model-Eliciting Activities (MEAs) approach is relatively good.Keyword: Critical thinking skill, Model-Eliciting Activities (MEAs) approach, mathematical disposition.

Increasing Students' Mathematical Communication Ability Through Web-Based Learning Rusdian Rifai; Yaya Sukjaya Kusumah
Jurnal Analisa Vol 8, No 2 (2022): Volume 8 Nomor 2 Tahun 2022
Publisher : Department of Mathematics Education, UIN Sunan Gunung Djati Bandung, West Java, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/ja.v8i2.19989

Penelitian ini bertujuan untuk mengetahui peningkatan kemampuan komunikasi matematis siswa dengan pembelajaran berbasis web. Subjek penelitian ini adalah siswa kelas X yang diambil 2 kelompok. Kelompok pertama sebagai kelompok eksperimen yang diberi perlakuan pembelajaran berbasis web dan kelompok kedua sebagai kelas kontrol yang diberi perlakuan pembelajaran ekspositori. Pembelajaran yang tepat dapat meningkatkan kemampuan komunikasi matematis dengan salah satu indikator yang diperlukan yaitu menyatakan situasi matematik atau peristiwa sehari-hari ke dalam model matematika dan menyelesaikannya. Metode pengumpulan data menggunakan metode kuasi eksperimen dan teknik sampling yang digunakan dalam penelitian ini adalah purposive sampling. Diperoleh hasil perhitungan bahwa thitung > ttabel hal ini berdasarkan dari uji t N-gain dimana thitung = 2,22 dan ttabel = 2,01063 pada tarap signifikan 0,05. Hal ini menyimpulkan bahwa terdapat peningkatan kemampuan komunikasi matematis siswa X dengan pembelajaran berabasis web. This study aims to determine the increase in mathematical communication skills of class X SMK Dwi Putra Bangsa with web-based learning. The subjects of this study were students of class X SMK Dwi Putra Bangsa who were taken in 2 groups. The first group as an experimental group that was given web-based learning treatment and the second group as a control class that was given conventional learning treatment. Appropriate learning can improve mathematical communication skills with one of the indicators needed, namely expressing mathematical situations or everyday events into a mathematical model and solving them. The data collection method used was a quasi-experimental method and the sampling technique used in this study was purposive sampling. The results of the calculation that tcount> ttable, this is based on the N-gain t test where tcount = 2.22 and ttable = 2.01063 at a significant tarap 0.05. This concludes that there is an increase in the mathematical communication skills of students X SMK Dwi Putra Bangsa with web-based learning.

Co-Authors Aat Juatiningsih Lestari Utami Andini Dwi Rachmawati Anik Yuliani Astri Wahyuni Bambang Avip Bambang Avip Priatna Martadiputra cakrawala Cipta, Eliva Sukma Dadan Dasari Dadang Juandi Dadang Juandi Dahlia Fisher Damayanti Lestari, Wiwit Diana Ayu Wulandari Edi Irawan Endang Cahya Mulyaning Fanisa Dina Amalia Dewi Umbara Fanny Febryani Fatimah, Siti Hans Vos Harina Fitriyani Indri Octaviyani Jarnawi Afgani Dahlan Kartika Yulianti Kusnandi Kusnandi Lukman hakim muhaimin Muchamad Subali Noto Muchlis, Effie Efrida Nanang Priatna Nunu Nurhayati Nur Kolis Nurjanah, Nurjanah Ratni Purwasih Ricki Yuliardi Rusdian Rifai Sari Herlina Siska Firmasari Stanley Dewanto Sudirman Suhendra Suhendra Suhendra, S Sulistiawati Sulistiawati Sulistiawati Sulistiawati Surgawi Pertiwi Syafdi Maizora Teddy Septian R Tresna Nur’aviandini Turmudi Utari Wijayanti Veni Saputri Yani Siti Tuadah Afriani Yulyanti Harisman Zatman Payung zatman, Zatman Payung

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