cover
Contact Name
Ratna Marlina
Contact Email
ratnamarlina@pustakailmiah.id
Phone
+6285718448584
Journal Mail Official
ratnamarlina@pustakailmiah.id
Editorial Address
Jl. Jati Sari, RT 004/RW 002 Desa Jati Kec. Bojongpicung, Ka. Cianjur, Jawa Barat, Indonesia
Location
Kab. cianjur,
Jawa barat
INDONESIA
Pi Radian Journal
ISSN : 30319552     EISSN : 30319544     DOI : https://doi.org/10.63214/piradian
Core Subject : Education,
Pi Radian Journal of Mathematics Education is a journal published twice a year, on March and September by CV Pustaka Literasi Ilmiah. This journal focuses on mathematics education and disciplined inquiry into the teaching and learning of mathematics. The scope of this journal is students mathematical abilities, High Order Thinking Skills in Mathematics, Learning Media or Manipulative Tools, Classroom Action Research, Qualitative or Quantitative Research, Didactical Design Research (DDR), Design Research (DR), Research and Development (RnD). The publication language of Pi Radian is English. All manuscripts submitted to Pi Radian should be submitted in English. Any submitted paper must be research articles, which have been carefully reviewed, should followed the author guidelines, use the Pi Radian journal template, use Mendeley in references, have a minimum of 15 journal articles as references, and have a minimum of ten pages. This will make the process and publication faster. Any paper that does not meet the requirements will be rejected. Any submitted paper will be reviewed by reviewers. The review process employs a Double blind Review that the reviewer does not know the identity of the author, and the author does not know the identity of the reviewers.
Articles 22 Documents
Designing a MIT App Inventor-based mathematics learning application to enhance students’ conceptual understanding: A development study Wijaya, Aryo Surya
Pi Radian: Journal of Mathematics Education Vol. 3 No. 2 (2025): Pi Radian Journal
Publisher : CV. Pustaka Literasi Ilmiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63214/piradian.v3i2.pp89-106

Abstract

The background of this study lies in the limited use of technology-based learning media, which is essential to improve the quality of learning. Therefore, this research aims to: (1) describe the process of developing a mathematics learning application using MIT App Inventor, (2) examine the validity of the developed application, (3) measure its effectiveness, (4) assess its practicality, and (5) analyze students’ responses to the application. The research employed a Research and Development (R&D) approach with the ADDIE model (Analysis, Design, Development, Implementation, Evaluation). The subjects of this study were 29 students of class VIII-A at SMP Negeri 24 Bandung during the 2022/2023 academic year. Research instruments included validation questionnaires for material experts and media experts, a practicality questionnaire, post-test sheets, and a student response questionnaire. The results of the analysis indicate that the developed mathematics learning application is categorized as good, with a validation score of 86.33 (very valid) from material experts and 70.5 (valid) from media experts. The level of effectiveness was 82.76 (very effective), practicality was 82.29 (practical), and students’ response score was 75.78 (fairly good). These findings suggest that the application developed with MIT App Inventor can serve as a valid, effective, and practical medium for supporting students’ conceptual understanding in mathematics learning. This study contributes by providing an empirically validated development framework and practical reference for integrating MIT App Inventor-based applications into junior high school mathematics instruction to enhance conceptual understanding.
Analyzing students’ errors on the topic of statistics using Watson’s criteria Rachmawati Khaerun Nisa; Dahlan, Jarnawi Afgani
Pi Radian: Journal of Mathematics Education Vol. 3 No. 1 (2025): Pi Radian Journal
Publisher : CV. Pustaka Literasi Ilmiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63214/piradian.v3i1.pp61-76

Abstract

This research is titled “Analyzing students’ errors on the topic of statistics using Watson’s criteria” which aims to identify in depth the mistakes made by students in solving statistics problems. This study uses a qualitative approach with a descriptive method, so the results obtained emphasize more on descriptive explanations regarding the forms and types of errors that occur. The research subjects were 12th-grade students at Madrasah Aliyah AL AMIN, Kuningan Regency, who were chosen because they were considered to have received statistical material but still encountered various obstacles in the learning process. Research data were obtained through written tests and interviews designed to further explore the reasons why students made errors. Based on the analysis, it was found that student errors can be categorized into eight Watson criteria, including incorrect procedures, missing data, manipulation errors, and errors in interpreting problems. Although some students are able to arrive at the correct answers, the process of solving problems is often not systematic and skips important steps, indicating weaknesses in understanding basic statistics concepts. These findings suggest that improvements are still needed in teaching approaches so that students not only focus on the final results but also understand the problem-solving process thoroughly. By understanding the dominant types of errors, educators can develop more targeted learning strategies, provide constructive feedback, and create more comprehensive evaluation methods. This research is expected to contribute to curriculum development and enhance the quality of statistics education, enabling students to achieve better learning outcomes.

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