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All Journal Jurnal Infinity P2M STKIP Siliwangi DIDAKTIK AKSIOMA: Jurnal Program Studi Pendidikan Matematika Jurnal Daya Matematis JTAM (Jurnal Teori dan Aplikasi Matematika) Journal on Education SIGMA JPMI (Jurnal Pembelajaran Matematika Inovatif) (JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Jurnal Pengabdian Masyarakat Khatulistiwa Mosharafa: Jurnal Pendidikan Matematika Jurnal Infinity
M. Afrilianto
IKIP Siliwangi
Arts Humanities Earth & Planetary Sciences Economics, Econometrics & Finance Education Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Public Health Social Sciences Other

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The Development of Discovery Learning Model Teaching Materials to Improve Students’ Mathematical Problem Solving Ability on Junior High School Marthalita, Mona; Kadarisma, Gida; Afrilianto, M.
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol. 7 No. 4 (2024): VOLUME 7 NUMBER 4, DECEMBER 2024
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v7i4.22535

Abstract

In order to enhance students' mathematical problem-solving skills, this study looks at how teaching materials are developed using the Discovery Learning model. Since every student nowadays needs to be able to think critically, the study specifically looks at the process and outcomes. development, viability testing, feedback from students, and improving mathematical problem-solving skills. This kind of research makes use of the Research and Development (R&D) or Research-based Development research method, which is a way to create a specific product and use a model to test the product's viability. Students in class VII at MTs Al Bidayah West Bandung Regency served as the research sample for S. Thiagarajan's 4D (Define, Design, Develop, and Disseminate) study. The process and outcomes of creating educational materials lead to the conclusion that the materials, when viewed from the various stages, follow the procedures or methods outlined in 4D. Based on students' responses, which were 68.4% and 70.2% in the good category, the viability of teaching materials made possible by the Photoshop program can be concluded, along with the students' improved problem-solving skills. If this teaching material is used in a classroom setting, it is imperative that the necessary facilities be set up ahead of time because learning with it requires sufficient facilities. There are tasks and content in this teaching resource that need to be altered. so that students' learning experiences are not dull and monotonous.
Penggunaan pendekatan contextual teaching and learning untuk meningkatkan kemampuan pemecahan masalah matematis siswa SMP kelas VIII pada materi teorema pythagoras Ramaditya, Annisa Putri; Rosyana, Tina; Afrilianto, M.
JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol. 7 No. 6 (2024): JPMI
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jpmi.v7i6.23933

Abstract

This study aims to study and analyze the improvement of mathematical problem-solving skills in students who use the Contextual Teaching and Learning approach. This research is a type of quasi-experimental research with the population of grade VIII students at SMP Negeri 2 Batujajar and the sample of this study is students of grades VIII B and VIII C. The data collection instrument in this study uses mathematical problem-solving ability test questions in the form of descriptions of five questions. Quantitative data processing used the analysis of 2 dependent samples with a normality test and continued with a paired t-test. The results of this study are: Improvement of mathematical problem-solving ability of junior high school students in grade VIII whose learning uses the Contextual Teaching and Learning approach is better than those who use ordinary learning in Pythagorean Theorem material because in their learning they use all the characteristics of CTL, so that they can train students to solve a problem presented.
Literature Review: The Effectiveness of The Realistic Mathematics Education Approach to Improve Students Mathematical Communication Skills Annisa, Delsyifa Putri; Kadarisma, Gida; Afrilianto, M.
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol. 8 No. 1 (2025): VOLUME 8 NUMBER 1, MARCH 2025
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v8i1.23237

Abstract

Communication is one of the important skills that students must have in mathematics. Engaging in communication activities helps provide an understanding of mathematical communication skills to students. However, in reality, students' mathematical communication skills are still in the low category. Therefore, a more interactive learning method is needed. This study was conducted to analyze the effectiveness of the Realistic Mathematics Education (RME) approach in improving mathematical communication skills.The method used in this research is a literature review with inclusion and exclusion criteria focusing on studies containing quantitative or qualitative data. The data collection technique involved gathering relevant National and International Journal articles published between 2019 and 2023. From the numerous articles found, researchers selected 21 articles related to this study. The data processing technique applied in this study examined the effectiveness of using Realistic Mathematics Education (RME)  to improve communication skills in the collected articles. The results showed that RME is an effective learning approach for improving students' mathematical communication skills. In addition to Realistic Mathematics Education (RME), classroom learning can be enhanced with various media, such as Audio Visual Media or Learner Worksheets (LKPD). This approach makes classroom learning more interactive and receives positive responses from students, helping them understand the material better by expressing mathematical ideas through oral and written language and making arguments with confidence.
Analysis of Mathematical Critical Thinking Skills using Differentiation Learning on Junior High School Students based on Learning Style Delina, Delina; Afrilianto, M.
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol. 8 No. 1 (2025): VOLUME 8 NUMBER 1, MARCH 2025
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v8i1.23276

Abstract

Critical thinking skills are one of the level thinking skills, critical thinking is also no less important for students to master. In fact, students experience difficulties in developing mathematical critical thinking skills, this can be seen from students' learning outcomes which are not yet optimal. From this statement, researchers conducted research on students' mathematical critical thinking abilities. This research aims to analyze students' mathematical critical thinking abilities by using differentiation learning for junior high school students on algebra material. Differentiated learning is a learning strategy recommended by the government to support the implementation of an independent curriculum. The subjects of this research were 30 seventh grade students in junior high school in Purwakarta. This research uses a descriptive method with a qualitative approach. The stages in this research are planning, implementation and reporting. The test is given 5 questions according to indicators of critical thinking abilities. Before taking the test, students are first asked questions about their learning style. The results of the mathematical critical thinking ability test with differentiated learning show that 63% of students with a visual learning style are able to check the truth of an argument, 39% of students with a kinesthetic learning style can formulate questions with reasons, 37% of students with a visual learning style are able to identify relevant data, 38% of students with a visual learning identifies assumptions, 35% of kinesthetic learning styles are able to solve problems. Students' mathematical critical thinking abilities vary according to students' learning styles and other learning needs. It can be concluded that mathematical critical thinking abilities are influenced by differentiated learning.
Application of Discovery Learning Model to Improve Students’ Mathematical Problem Solving Ability on Islamic Junior High School Ma'ruf, Shofiyah Misbahul; Sari, Indah Puspita; Afrilianto, M.
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol. 8 No. 1 (2025): VOLUME 8 NUMBER 1, MARCH 2025
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v8i1.23976

Abstract

It is important for students to have problem solving abilities, but in the field problem solving abilities are very low. Therefore, the aim of this research is to see an increase in students' mathematical problem solving abilities by implementing the Discovery learning model. This research was conducted at one of the Islamic junior high schools in Bandung Barat regency. This research is experimental research methods. The research sample was class VII B, totaling 18 people. The data collection technique uses tests, namely pretest and posttest with 5 test questions in the form of descriptions to determine students' mathematical problem solving abilities.The data analysis techniques used are prerequisite analysis and hypothesis testing. The results of the research are that the problem solving abilities of students whose learning uses the Discovery Learning model after being given learning are better than before being given the learning. This is shown through the results of the t test using the dependent t test which obtained a significant value (2-tailed) = 0.000. The n-gain test result was 0.5767 or 57.67%, which means that the effectiveness of implementing the Discovery Learning model in mathematics learning is in the medium category or can be interpreted as quite effective. So it can be concluded that the application of the learning model with the Discovery Learning approach can improve student problem solving and help students become more proficient in solving mathematical problem.
Improving Students’ Mathematical Creative Thinking and Resillience Using Eliciting Activities Approach Susilawati, Lia; Afrilianto, M.; Sumarmo, Utari
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol. 8 No. 1 (2025): VOLUME 8 NUMBER 1, MARCH 2025
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v8i1.24711

Abstract

The ability of students in mathematics especially in creative thinking and resillience is still low. This reseacrch aimed to overcome the low ability of students mathematical creative thinking and resillience using eliciting activites approach and also to analyze the role of model eliciting activities (MEAs) on students’ mathematical creative thinking (MCT) and mathematical resillience. The method used in this research is a qualitative-quantitative method with quasi-experimental control group design. Subjects of this research are 30 students of 11th grade which selected randomly from 4 classess majoring agribusiness and holticultura in SMKN 4 Padalarang. Instruments of this research are mathematical creative thinking test ability (MCTA), a mathematical resillience scale (MR), and a student’s opinion on MEAs. The results of this research found that students getting treatment with MEAs attained better grade on MCTA than the grades of students taught by sciencetific approach (SA) eventough both grades were still at low-medium level. On MR, there was no different grades between students on both teaching approaches, and those grades were at medium-fairly good level. Besides that, the research found that students realized some difficulties in solving MCTA tasks, and there was no association between MCTA and MR.  the facts found in this research concluded that the use of eliciting activities approach could improve the ability of students’ mathematical creative thinking and resilience.
How Good Students’ Problem-Solving Skills on Senior High School? An Analysis on Sequences and Series Material Pratama, Aris; Hendriana, Heris; Supriatna, Tatang; Afrilianto, M.
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol. 8 No. 3 (2025): VOLUME 8 NUMBER 3, SEPTEMBER 2025
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v8i3.23857

Abstract

Students frequently respond to problems posed by their instructors through trial and error, without first grasping the underlying concepts. They often perceive the problems as entirely new and unrelated to their previous experiences, leading to a lack of confidence and reinforcing the belief that mathematics is a difficult subject. Consequently, their responses are often incorrect or incomplete. The objective of this study is to describe the mathematical problem-solving abilities of grade XI students on the topic of sequences and series in one of the schools in Bekasi Regency. This research employed a descriptive qualitative method, with data analysis techniques based on the interactive model developed by Miles and Huberman. The subjects of this study were 25 grade XI students selected using purposive sampling. The test instrument consisted of problem-solving tasks, while non-test data were obtained through interviews. The results indicate that students' mathematical problem-solving abilities fall into three categories: 4% of students demonstrated high problem-solving skills, 4% were in the medium category, and 92% were classified as low. A detailed analysis of problem-solving indicators reveals that: (1) in understanding the problem, many students struggled to identify the given information and the goal of the problem; (2) in devising a solution plan, most students failed to select an appropriate strategy, often guessing rather than structuring a logical approach; (3) in executing the plan, students in the low category frequently made calculation errors and misapplied formulas; and (4) in reflecting on the solution, very few students revisited their answers to verify accuracy or consider alternative methods. These findings suggest that students’ mathematical problem-solving abilities remain relatively low, with significant gaps in comprehension, planning, execution, and reflection. Strengthening these aspects through targeted interventions is necessary to enhance students’ overall problem-solving skills.
Implementation of Problem Based Learning using Interactive Media Canva and Quizziz to Improve Problem Solving Abilities of Vocational High School Students Pujiyastuti, Heti; Sabandar, Jozua; Afrilianto, M.
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol. 8 No. 3 (2025): VOLUME 8 NUMBER 3, SEPTEMBER 2025
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v8i3.27064

Abstract

Problem-solving ability is an essential skill that must be possessed by students, especially in Vocational High Schools (SMK), in order to apply the concepts learned in real situations. However, many students have difficulty in identifying and solving mathematical problems because the learning method is still centered on the teacher and the minimal use of interactive learning media. This study aims to analyze the mathematical problem-solving ability of vocational high school students whose mathematics learning uses the Problem Based Learning model assisted by interactive media canva and quizizz compared to those who use regular learning. This study uses a quasi-experimental method with a Nonequivalent Control Group Design. The research sample consisted of 64 grade XI students of SMKN 1 Cariu, which were divided into an experimental class (32 students) who received learning using PBL assisted by interactive media Canva and Quizizz, and a control class (32 students) who used regular learning methods. Data collection was carried out through problem-solving ability tests (pretest and posttest), questionnaires and observations. Data analysis using inferential statistics, namely the average difference test with N-Gain as a measure of learning outcomes, and thematic analysis for qualitative data. The results of the study showed that the mathematical problem-solving ability of vocational high school students whose mathematics learning used the Problem Based Learning model assisted by interactive media canva and quizizz was better than those who used regular learning.
Co-Authors Aat Atikah Adi Nurjaman Aflich Yusnita Fitrianna Amalia Yuliani Amalia, Fasha Edma Ani Ainun Masruroh Anik Yuliani Anita Apriliana Annisa, Delsyifa Putri Arlin Yuniyanti Silalahi Arni Pebriyanti Asep Ikin Sugandi Asep Ikin Sugandi Asep Tantowi Ayu Rekno Kusuma Dewi Bernard, Martin Danny, Firman Delina Delina Delina, Delina Deta Virgia Septi Dewi Ramadhona Diah Kurniawati Dina Oktoviani Mardiyanti Dinda Rahmawati Dini Rosdiani Eka Noviana Kharisma Eka Senjayawati Eki Dwi Pebriyanti Enny Yuliani Erna Kirana Solihat Ernawati Ernawati Euis E Rohaeti Euis Eti Rohaeti Euis Eti Rohaeti Euis Nurpadilah Eva Dwi Minarti Eva Dwi Minarti, Eva Dwi evi luthfiani Fasha Edma Amalia Fauzy, Alwan Fitri Nurul Aeni Fitria Sofianti Fitriani, Nelly Gabriel Torang Siagian Gita Sintia Heris Hendriana Heris Hendriana Heti Herawati Ika Wahyu Anita Ima Saridah Indah Puspita Sari, Indah Puspita Jaenal, Enjang Jozua Sabandar Kadarisma, Gida Kalvia Shania Ramadhania Leni Nurhayati Lina Rosmawati Linda Linda Luthfiani, Evi Luvy Sylviana Zanthy M Jalaludin Ma'ruf, Shofiyah Misbahul Marthalita, Mona Martin Bernard Maryam Firdaus Maryanih Maryanih Mia Khusnunisa Mira Fauziyah Hamdani Muhamad Jalaludin Muhamad Rizki Hidayat Muhammad Trisapto Sunarto Nabila Nurul Jannah Natasya Sri Rejeki Fadilah Neng Cucu Nurmaenah Neng Wiwit Juwita Lestari Nurul Azizah Nurul Khuzaimah Pebriyanti, Arni Pratama, Aris Puja Ilham Purnama Sari Puji Nurfauziah Pujiyastuti, Heti Ramaditya, Annisa Putri Rani Oktaviani Rasanti, Raras Ratna Sariningsih Ratni Purwasih Ratni Purwasih, Ratni Reni Nur Afifah Reza Fujianti Syehab Rika Kartika Rippi Maya Rippi Maya Selvia Agina Siti Nurrohmah Siti Nurrohmah Siti Setiawati Sonia Putri Yesmaya Oria Laa Sri Islami Kulsum Sugiarto, Almira Nurfarisi Sumartini, Tintin Supriatna, Tatang Susilawati, Lia Syehab, Reza Fujianti Tari Mulyani Tina Rosyana Tina Rosyana Tina Rosyana, Tina Tintin Sumartini Tommy Tanu Wijaya Trinuraini Trinuraini Umar, Novia Firdayanti Utari Sumarmo Wahyu Gumelar Yuliani, Amalia Zanjabila Ar-rahiiqil Mahtuum