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All Journal Jurnal Riset Pendidikan Matematika Al Khawarizmi: Jurnal Pendidikan dan Pembelajaran Matematika Procediamath SJME (Supremum Journal of Mathematics Education) Jurnal Cendekia : Jurnal Pendidikan Matematika Jurnal Math Educator Nusantara: Wahana Publikasi Karya Tulis Ilmiah di Bidang Pendidikan Matematika MATHEMA: JURNAL PENDIDIKAN MATEMATIKA Mosharafa: Jurnal Pendidikan Matematika Journal of Mathematics Instruction, Social Research and Opinion Journal of General Education and Humanities Edumatica: Jurnal Pendidikan Matematika Journal of Applied Plant Technology Journal of Medives: Journal of Mathematics Education IKIP Veteran Semarang Educational Insights Journal Of Law Sciences (Legisci) Differential: Journal on Mathematics Education SJME (Supremum Journal of Mathematics Education) ITEJ (Information Technology Engineering Journals) Eduma : Mathematics Education Learning and Teaching

Toheri, Toheri

Universitas Islam Negeri Siber Syekh Nurjati Cirebon

Author-ID : 582314

Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Computer Science & IT Decision Sciences, Operations Research & Management Education Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Social Sciences Other

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A case study of misconceptions students in the learning of mathematics; The concept limit function in high school Widodo Winarso; Toheri Toheri
Jurnal Riset Pendidikan Matematika Vol 4, No 1: May 2017
Publisher : Program Studi Pendidikan Matematika Program Pascasarjan Universitas Negeri Yogyakarta

This study aims to find out how high the level and trends of student misconceptions experienced by high school students in Indonesia. The subject of research that is a class XI student of Natural Science (IPA) SMA Negeri 1 Anjatan with the subject matter limit function. Forms of research used in this study is a qualitative research, with a strategy that is descriptive qualitative research. The data analysis focused on the results of the students' answers on the test essay subject matter limit function with the number of students by 16 (sixteen). Data collection techniques used are shaped test methods essay, interview method to students who have misconceptions, and methods of documentation of the test answers. Examination of the validity of the data using a triangulation technique that compares the data written test results with data from interviews. The results of this study can be described as follows; (1) The level of misconceptions experienced by students belonging to the category of low, amounting to 12.18%. However, students who do not understand the concept quite high at 40.38%, and the others are students who understand the concept that is equal to 47.44%. (2) The misconception most experienced students lie in subconcepts explain the meaning of limit function at one point through the calculation of values around that point, that is equal to 20.51%. The tendency misconceptions experienced by students is located on errors and operating concepts that misconceptions students that there should be no limit in the completion of the writing of the emblem and misconceptions about the limit students to conclude if the limit value of 0 is no limit to the value of the function.

Keterampilan Guru Matematika Se-Kabupaten Kuningan dalam Pemanfaatan Platform Pembelajaran Online Masa Pandemic Toheri Toheri; Aliyah Kismeina; Alif Ringga Persada
Mosharafa: Jurnal Pendidikan Matematika Vol 11, No 2 (2022)
Publisher : Institut Pendidikan Indonesia

Permasalahan yang dihadapi pada masa pandemic COVID-19 mengharuskan pendidik melakukan kegiatan mengajar di rumah. Pendidik dituntut dapat menggunakan dan memanfaatkan teknologi untuk pembelajaran daring. Penilitian dilakukan untuk mengetahui keterampilan guru matematika dalam pemanfaatan platform pembelajaran online dan mengetahui bagaimana kualitas pembelajaran yang dihasilkan. Penelitian ini menggunakan jenis penelitian mixed method yaitu menggabungkan metode kuantitatif dan kualitatif. Populasi dalam penelitian ini terdiri dari 122 guru matematika se-Kabupaten Kuningan dengan jumlah 44 sekolah (9 negeri dan 35 swasta). Peneliti menggunakan teknik Cluster Random Sampling dengan sampel sebanyak 25 guru dari 10 sekolah (5 negeri dan 5 swasta). Hasil penelitian menunjukkan bahwa keterampilan guru dalam konteks TIK masuk dalam kategori “Kurang Baik”. Kualitas pembelajaran cenderung menurun, dan nilai-nilai karakter menurun. Pencapaian siswa pada masa pandemic umumnya belum mencapai nilai KKM yang sudah ditentukan oleh sekolah. Hasil nilai rapor siswa juga cenderung fluktuatif.The problem faced during the pandemic COVID-19 requires that educators perform teaching activities at home. Educators must be able to use and utilize technology for online learning. This study aims to determine the skills of mathematics teachers in the use of learning platforms online; to find out how the quality of the resulting learning. This research uses research, mixed-method which combine quantitative and qualitative methods. The population in this study consisted of 122 mathematics teachers throughout Kuningan Regency with a total of 44 schools (9 public and 35 private). Researchers used the technique Cluster Random Sampling with a sample of 25 teachers from 10 schools (5 public and 5 private). The results of the study indicate that the skills of teachers in the context of ICT are included in the "Not Good". The quality of learning tends to decrease, and character values decline, besides that, many student achievements during the pandemic have not reached the KKM value that has been determined by the school, and fluctuating student report card scores are also shown.

Reduction of Learning Obstacle through Design Didactic Concept of Geometry Transformation Arif Abdul Haqq; Nur'azizah Nur'azizah; Toheri Toheri
SJME (Supremum Journal of Mathematics Education) Vol 3 No 2 (2019): July 2019
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Singaperbangsa

Penelitian ini bertujuan untuk merumuskan suatu alternatif desain pembelajaran konsep transformasi geometri. Penelitian ini dilakukan di SMK Wahidin Kota Cirebon kelas XI AP 1 terhadap 32 siswa. Metode penelitian yang digunakan dalam penelitian ini adalah metode kualitatif dengan teknik pengumpulan data melalui observasi, wawancara dan studi dokumentasi. Penelitian ini merupakan penelitian Didactical Design Research. Hasil penelitian ini adalah suatu desain didaktis alternatif yang dapat digunakan dalam pembelajaran matematika Sekolah Menengah Kejuruan (SMK) pada konsep transformasi geometri.

FUTURE’S RESEARCH IN MATHEMATICS EDUCATION Toheri Toheri
Procediamath Vol 1, No 1 (2017)
Publisher : IAIN Syekh Nurjati Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (717.282 KB)

Ketrampilan Abad 21 dan tes internasional TIMSS dan PISA menjadi acuan untuk melihat peforman sebuah negara dalam era global. Negara Asia Timur mendominasi top performan dalam tes tersebut. Karakteristik pendidikan matematika dari negara-negara tersebut menjadi isu-isu pendidikan yang baik dalam rangka mengembangkan penelitian kedepan. Literasi matematis dan ketrampilan abad 21 menjadi topik penting dalam penelitian kedepannya dengan dukungan kurikulum, pendidikan guru matematika, assesment berbasis tes internasional dalam lingkungan belajar yang memadai.

Penerapan Model Pembelajaran Collaborative Problem Solving (CPS) Dalam Meningkatkan Higher Order Thinking Skills (HOTS) Siswa Kelas VII Nursaodah Nursaodah; Toheri Toheri; Yandi Heryandi
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.v6i3.1448

Permasalahan penelitian ini adalah guru mengalami kesulitan dalam pembelajaran yang berorientasi pada keterampilan berpikir tingkat tinggi dan lemahnya keterampilan siswa dalam berpikir tingkat tinggi. Tujuan penelitian adalah mengetahui respon siswa dalam belajar menggunakan model pembelajaran CPS dan mengetahui seberapa besar peningkatan HOTS siswa dengan menerapkan model pembelajaran CPS. Metode penelitian yang digunakan eksperimen dengan pendekatan pre-experimental design yaitu penelitian dengan satu kelompok pretes-posttes. Sampel penelitian adalah kelas VII A. Instrumen yang digunakan angket dan tes. Berdasarkan analisis data, respon angket siswa terhadap penerapan model pembelajaran CPS adalah 69%. Sebagian besar respon siswa menyatakan setuju terhadap penerapan model pembelajaran CPS sebesar 40,42%. Sementara itu, analisis skor pretest dan posttest siswa menggunakan N-gain, dengan nilai rata-rata pretest dan posttest siswa yaitu 44,875 dan 71,250 maka diperoleh nilai N-gain adalah 0,47. Setelah itu, uji hipotesis menggunakan rumus product moment, diperoleh nilai signifikansi antara angket dan nilai posttest adalah 0,820. Dengan demikian, seluruh data menunjukkan bahwa penerapan model pembelajaran CPS dapat meningkatkan HOTS siswa kelas VII.

Students' Perceptions of Mathematics Teachers: Personal and Interpersonal Firly; Toheri Toheri; Arif Muchyidin
Journal of Mathematics Instruction, Social Research and Opinion Vol. 1 No. 3 (2022): November
Publisher : MASI Mandiri Edukasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58421/misro.v1i3.39

Based on student perceptions, this study describes mathematics teachers' personalities and social competence at MTsN 2 Cirebon. This study examines and describes mathematics teachers' personalities and social competencies based on student perceptions of MTsN 2 Cirebon. This type of research uses mixed research methods and a sequential explanatory design. The population in this study was all class VIII MTsN 2 Cirebon, and the sample in this study was 134 students. The data collection techniques are questionnaires and interviews using instruments like questionnaire results and interview guidelines. The data analysis used is descriptive statistics and descriptive qualitative. The results showed that the description of the personality competence of mathematics teachers at MTsN 2 Cirebon, according to the analysis of student perceptions in general, was categorized as good with a percentage of 72.67%, which was supported by the results of student interviews stating that the teacher always dressed neatly and according to the official schedule, starting and ending timely learning. However, there are indicators of personality competence that have not been maximized, namely the teacher being a role model for students, with a smaller percentage than the other three indicators of personality competence, namely 68.38%. Moreover, the social competence of mathematics teachers at MTsN 2 Cirebon, according to the analysis of student perceptions in general, is categorized as good. Supported the results of student interviews state that the teacher, when in class, interacts well with students and cares about students by reprimanding, advising, and repeating learning that has not been understood, but if outside the classroom, the teacher is just ordinary, not so close, just saying hello like other teachers.

Mathematical Literacy Ability Based on Higher Level Thinking Meilynda Rizky Rianti; Toheri Toheri; Hadi Kusmanto
Jurnal Pendidikan Matematika IKIP Veteran Semarang Vol 6 No 1 (2022): Journal of Medives : Journal of Mathematics Education IKIP Veteran Semarang
Publisher : Urogram Studi Pendidikan Matematika, Universitas IVET

This The 21st century requires human resources who have superior quality with critical thinking skills, creativity, collaboration, and communication skills. Education is the main sector that plays a role in increasing the number of human resources with superior skills. The research objectives are: 1) Knowing the mathematical literacy skills of students 2) Knowing the higher order thinking skills of students 3) Knowing the correlation between mathematical literacy and students' higher-order thinking skills. The research method used in this research is correlational, without giving any treatment. The data collection technique in this study was a test technique, with the research population being students of class X SMA Negeri 2 Kuningan with a total of 249 students. The sampling technique used was Stratified Random Sampling so that the number of samples taken was 35 students. The results obtained that the level of mathematical literacy ability seen in each indicator obtained results on the formulate indicator with a mean value of 66.09 being in the good category, the mean value of the employing indicator of 78.43 being in the good category, while the mean value of the employing indicator was 78.43. the indicator interprets the mean value of 27.51 in the low category. Meanwhile, the level of students' higher order thinking skills seen in each indicator obtained an average score or mean from the analyzing indicator (C4) of 56, the C5 indicator evaluated getting the mean or average value of 53.57, and the mean value of the C6 indicator. create 44.57. The mean or average value obtained for each indicator is interpreted based on test scores with a sufficient category for the C4 indicator, the low category for the C5 indicator, and the very low category on the C6 indicator, and the results of this study indicate that there is a significant correlation between mathematical literacy and ability students' higher order thinking. Keywords: mathematical literacy, high order thinking skill.

Instant Organoleptic Test of Ginger from Three Ginger Varieties (Zingiber officinale): Uji Organoleptik Instan Jahe dari Tiga Varietas Jahe (Zingiber officinale) Thohiron, Mochamad; Toheri, Toheri; Dhinata, Yhogga Pratama; Herawati, Jajuk
Journal of Applied Plant Technology Vol 3 No 1 (2024): Journal of Applied Plant Technology (JAPT)
Publisher : Agrotechnology Study Program, Faculty of Agriculture, Wijaya Kusuma Surabaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30742/5pcdd809

Instant organoleptic test of ginger against three varieties of ginger (Zingiber officinale) is descriptive research. The purpose of this study is to examine the feasibility of processed ginger formulations and their effect on the level of preference of panelists as consumers for instant ginger as an herbal drink made from raw materials with three varieties of ginger. This research was conducted in May-July 2023 at the Production Laboratory of the Faculty of Agriculture-UWKS using a one-factor Complete Randomized Design (RAL) consisting of 3 levels. The treatment is the use of the main raw materials of ginger with 3 varieties, namely J1 = elephant ginger (2023 research results); J2 = red ginger; J3 = empirrit ginger. The observation parameters were carried out through Organoleptic tests on product properties, namely taste, aroma, texture, color, physical appearance, and knowing the level of preference of panelists for ginger instant drinks from 3 varieties of ginger, and each treatment was repeated three times with 10 panelists each repeat. This hedonic test with sensory analysis of instant ginger products is used to guess what products the panelists like the most with the level of liking. The method used in this Hedonic Test, consists of 5 levels: (1) very dislike, (2) dislike, (3) ordinary, (4) like, and (5) very like From the results of this study is expected to provide benefits to the public in consuming ginger as a healthy herbal drink, as well as for other researchers who are interested in similar research. Three levels in the treatment of the use of three varieties of ginger on instant results of ginger, from organoleptic tests give results that elephant ginger has advantages in aroma and color, empirrit ginger has the advantage of soft texture and red ginger has a good taste.

Promoting Students’ Critical Thinking Skill Through Stem-Based Learning on Trigonometry Lestiana, Herani Tri; Toheri, Toheri; Nur'aeni, Sri
Al-Khawarizmi Vol 6, No 2 (2022): Al Khawarizmi: Jurnal Pendidikan dan Pembelajaran Matematika
Publisher : Universitas Islam Negeri Ar-Raniry Banda Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/jppm.v6i2.15482

This study aims to promote students' critical thinking skills of trigonometry by using STEM-based learning. This study was an experimental study conducted on 10th grade students of social studies MAN 1 Cirebon. The data were collected by using tests. The result showed that there was an improvement of students’ critical thinking skills after the implementation of STEM-based learning on trigonometry. Students’ posttest score of 79.83 was greater than the pretest score, which was 30.81. The paired sample t-test analysis showed that there was a significant increase from pretest to posttest score. Thus, it can be concluded that there STEM-based learning can be applied to promote students' critical thinking skills.

Pengembangan Modul Berbasis Model CORE dan Problem Solving Polya untuk Meningkatkan Self Regulated Learning dan Critical Thinking Hadyah Furqon, Fifiq Rachma; Wahid, Sirojudin; Toheri, Toheri
MATHEMA: JURNAL PENDIDIKAN MATEMATIKA Vol 6, No 2 (2024): MATHEMA
Publisher : Universitas Teknokrat Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33365/jm.v6i2.2907

Tujuan dari penelitian ini untuk mengetahui proses, kevalidan, kepraktisan dan keefektifan pengembangan pada modul dengan berbasis model CORE dan problem solving polya untuk meningkatkan self regulated learning dan critical thinking. Jenis penelitian ini menggunakan penelitian pengembangan (RnD) dengan metode ADDIE (Analys, Design, Development, Implementation and Evaluation). Berdasarkan penelitian yang telah dilakukan diperoleh hasil kevalidan pada proses pengembangan dari aspek materi, aspek media, dan aspek bahasa dinyatakan sangat valid. Selanjutnya, pada kepraktisan mendapatkan kriteria sangat praktis sedangkan pada keefektifan modul yang dikembangkan dikatakan efektif karena nilai N-gain kelas eksperimen lebih besar dibandingkan nilai N-gain kelas kontrol. Peningkatan pada self regulated learning sebesar 16% dan peningkatan pada critical thinking sebesar 48,3%.

Co-Authors Abdul Azis Alif Ringga Persada Aliyah Kismeina Aliyatul Marzuqoh Arif Abdul Haqq Arif Muchyidin Arif Muchyidin darwan darwan Dhinata, Yhogga Pratama Didin Nurul Rosidin Edina, Sheilla Ariestia Fiqri Ulwiyatul Imamah Firly Fitri Amalia Izzati Hadi Kusmanto Hadi Kusmanto, Hadi Hadyah Furqon, Fifiq Rachma HANDOKO, HENDRI hendri raharjo Iis Siti Aisyah Indah Nursuprianah Izzati, Fitri Amalia Jajuk Herawati Lestiana, Herani Tri Marzuqoh, Aliyatul Meilynda Rizky Rianti Mochamad Thohiron Mualifah Alifah muhammad winarno Nur Inayah Nur'aeni, Sri Nur'azizah Nur'azizah Nur'azizah, Nur'azizah nuraenahfisah nuraenahfisah Nursaodah Nursaodah Putri Pertiwi sihabudin sihabudin Sirojudin Wahid Siti Nur Kholifah siti nur kholifah Widodo Winarso Winarso D. Widodo Yandi Heryandi Yandi Heryandi Yeni Herlina

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