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Ratna Marlina
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Pi Radian Journal
Published by CV Pustaka Literasi Ilmiah
ISSN : 30319552     EISSN : 30319544     DOI : https://doi.org/10.63214/piradian
Core Subject : Education,
Mathematics
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.
Arjuna Subject : Matematika - Matematika (Lain-Lain)
Articles 4 Documents
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Search results for , issue "Vol. 1 No. 2 (2023): Pi Radian Journal" : 4 Documents clear
Implementation of a problem-based learning model assisted with student worksheets to improve mathematical reasoning skill for students of grade X SMK Azzahrah, Astriani; Putra, Harry Dwi; Habibullah, Habibullah
Pi Radian: Journal of Mathematics Education Vol. 1 No. 2 (2023): Pi Radian Journal
Publisher : CV. Pustaka Literasi Ilmiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63214/piradian.v1i2.pp55-64

Abstract

This study aims to analyze application problem based learning assited by student worksheets to improve the mathematical reasoning skill of class X Vocational High School students in the matter of a system of two-variable linear equations for the 2022/2023 Academic Year. The research method used is pre-experimental design. The subjects of this study were 35 studens of class at a SMK in Cimahi City. Research data was collected using tests and questionnaires. The data collection technique used in this study was in the form of the test instruments in the form of pretest and posttest as well as questionnaires to analyze student responses. The results of the research show 1) the application of the problem based learning can improve students’ mathematical reasoning skill, this is show from the average score N-Gain student size  are in the high criteria, where as many as 11 students with the category N-Gain medium and 24 students are in the category N-Gain tall, 2) student responses are in the category of strongly agree, meaning that students strongly agree with the application of the learning problem-based learning which can improve mathematical reasoning ability.
Development of google site-based mathematics learning media with core model for grade VIII students Dilla, Siska Chindy; Hidayat, Wahyu
Pi Radian: Journal of Mathematics Education Vol. 1 No. 2 (2023): Pi Radian Journal
Publisher : CV. Pustaka Literasi Ilmiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63214/piradian.v1i2.pp73-82

Abstract

21st century learning strives for students to be able to actively construct concepts, develop their knowledge, and use ICT tools. Especially the transition from post-pandemic learning, students are required to be more independent in learning. So we need learning media that can help overcome these problems. The purpose of this research is to develop and produce a website-based learning media with the google site combined with the CORE model in mathematics learning for junior high school students in good quality statistical material by meeting the validity and feasibility criteria. The selected development model is the ADDIE model (Analyze, Design, Develop, Implement, Evaluate). The instruments used include validation questionnaires, practicality questionnaires, and learning outcomes tests.Technical analysis of the data was carried out qualitatively to measure the data descriptively and quantitatively to calculate the scores of the results of the feasibility test of the learning media that the researchers had developed. The results of the research on the development of learning media are based on the material aspect of 77,5%, the media aspect of 81%, the practicality of the learning media from the responses of students to get a percentage of 85,2% with a very decent category.After trying the learning media, students were asked to do posttest and learning questionnaires, 78,6% of students had good learning achievements.Thus, the learning media of mathematics learning media using the google site with the CORE model that the researcher developed is very suitable for use in learning.
Problem based learning with geogebra software on self confidence of junior high school students Marlina, Ratna
Pi Radian: Journal of Mathematics Education Vol. 1 No. 2 (2023): Pi Radian Journal
Publisher : CV. Pustaka Literasi Ilmiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63214/piradian.v1i2.pp65-72

Abstract

This research is motivated by the low level of confidence of junior high school students, so it is necessary to design learning that overcomes these problems. One of the alternative solutions is using problem-based learning approach with the help of GeoGebra software. In the process, this research uses an experimental design, where there is an experimental class that uses a problem-based learning approach and a control class using the usual approach. The population in this study were junior high school students in Cimahi city while the sample was in one of the junior high schools in Cimahi city. Data collection techniques using non-test instruments in the form of self-confidence questionnaire as many as 25 questions. Data processing techniques using two mean difference test. The results showed a significant 0.490 > 0.05. which means that there is no difference in mathematical self-confidence of junior high school students using a problem-based learning approach assisted by geogebra with those who learn using ordinary learning. This happens because of several factors such as time and learning environment that is less conducive, the use of methods, students such as lack of enthusiasm and concentration.
Development of learning media for square topics using scratch platform for grade VII Al jabar, Sheila Zalzabilla; Supriatna, Tatang
Pi Radian: Journal of Mathematics Education Vol. 1 No. 2 (2023): Pi Radian Journal
Publisher : CV. Pustaka Literasi Ilmiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63214/piradian.v1i2.pp83-92

Abstract

This research aims to develop teaching materials for quadrilateral topics assisted by Scratch with valid, practical, and effective quality based on the stages of geometry skills using the Research and Development (R&D) method. The subject of this study involved a limited trial conducted at Sumur Bandung Junior High School in Cililin, with 10 students from 7th grade. A broader trial was conducted at Sumur Bandung Junior High School in Cililin, with 45 students from 7th grade. The final product was tested at Sumur Bandung Junior High School in Cililin, consisting of two classes: an experimental class (VII-A) and a control class (VII-B), each comprising 22 and 23 students, respectively. Data collection techniques employed were observation, interviews, and documentation. The data analysis involved descriptive statistics and inferential statistics. The instruments used in this study were reasoning ability tests based on mathematical reasoning indicators and interview questionnaires. The research findings indicated that the use of Scratch-assisted teaching materials had a positive impact, enhancing students' mathematical reasoning ability to an excellent category. Students who learned with the Scratch-assisted materials demonstrated better mathematical reasoning ability compared to those who received conventional instruction. Therefore, the Scratch-assisted teaching materials were considered valid and effective for instructional purposes.

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