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All Journal Journal of Educational Research and Evaluation Indonesian Journal Of Educational Research and Review Quadratic: Journal of Innovation and Technology in Mathematics and Mathematics Education
Ratnasari, Gamarina Isti
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Humanities Education Mathematics Public Health Social Sciences Other

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Functional Thinking in Mathematics Learning: What and How to Measure it? Ratnasari, Gamarina Isti; Widjajanti, Djamilah Bondan; Andayani, Sri
Indonesian Journal of Educational Research and Review Vol. 6 No. 3: October 2023
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/ijerr.v6i3.66682

Abstract

Functional thinking becomes a principle in the process of learning mathematics at school. Even though the need for a review of functional thinking is increasing, until now there has been no systematic literature review discussing what and how to measure functional thinking in mathematics learning. The aim of this study is to analyze the importance of functional thinking in mathematics learning and how to measure functional thinking. The method used in this systematic review study refers to PRISMA. The total articles collected were 5,415,874. Based on the PRISMA steps which consist of Identification, Screening, Eligibility, and Included, 63 articles met the requirements. The results of a review of 63 articles show that there are several things that must be considered in developing functional thinking in learning mathematics such as using open problems, solving realistic problems, using technology, and giving routine and non-routine practice questions. Furthermore, in measuring functional thinking, it can be seen based on the indicators, namely writing the next element based on the previous pattern (recursive pattern), using the relationship between elements to continue the relationship to elements in general (covariational relationship), and stating the relationship between two elements that vary in the form of function rules (correspondence).
Eksplorasi Motif Geblek Renteng: Aplikasi Grup Kristalografi dengan Graphical User Interface (GUI) Putranto, Sumbaji; Ratnasari, Gamarina Isti; Purnama, Pratama Wahyu
Quadratic: Journal of Innovation and Technology in Mathematics and Mathematics Education Vol. 3 No. 02 (2023): October 2023
Publisher : Pusat Studi Pengembangan Pembelajaran Matematika Sekolah UIN Sunan Kalijaga Yogyakarta Jl. Marsda Adisucipto, Yogyakarta 55281

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/quadratic.2023.032-02

Abstract

Geblek is one of Kulon Progo's specialty foods made from cassava flour with a shape resembling a figure eight. Geblek is the main pattern used in the batik typical of Kulon Progo. The batik motif uses repetitive and symmetrical patterns. The application of mathematics, especially cryptography, can be used to find repetitive patterns that can inspire batik motifs. This research aims to describe how a basic geblek pattern from Kulon Progo can be transformed into various other patterns using the concept of plane crystallography. The geblek pattern is applied to 17 crystallographic groups, resulting in 17 batik motifs. The use of Graphical User Interface (GUI) in MATLAB will make it easier to form batik motifs. Based on the exploration results, 17 patterns were derived from the basic pattern of Kuln Progo geblek. Uniquely, from these 17 patterns, there are the same and similar patterns. In other words, the patterns found from the basic geblek pattern do not reach 17 patterns. The development pattern of Kulon Progo geblek is further described in this article.
Peer Tutoring with Realistic Mathematics Education in Inclusive Class to Improve Problem-Solving Skills Putranto, Sumbaji; Marsigit, Marsigit; Ratnasari, Gamarina Isti
Journal of Education Reseach and Evaluation Vol 6 No 2 (2022): May
Publisher : LPPM Undiksha

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (350.341 KB) | DOI: 10.23887/jere.v6i2.43651

Abstract

Many teachers are unprepared to teach special-needs students in inclusive classes. In addition, methods and approaches related to the effectiveness of learning mathematics in inclusive classes have not been explored, especially those related to problem-solving skills. This study aims to analyze the effectiveness of the peer tutoring method with the Realistic Mathematics Education approach to the problem-solving skills of slow learners and inclusive class students. This type of research is a quasi-experimental design with a Group Pretest-Posttest design. The sample of this study was selected by saturated sampling consisting of 31 slow learners and 62 regular students spread over three inclusive classes. Determination of slow learners is based on the results of intelligence tests and student learning outcomes. The instrument used to measure problem-solving skills is an essay in the form of a pretest and posttest. The data analysis technique is descriptive qualitative, quantitative, and inferential analysis. The results showed that the average post-test score was higher than the average pretest score based on problem-solving skills, more than 75% of all students. Get a score higher than the minimum achievement criteria. It shows that the peer tutoring method with the Realistic Mathematics Education approach is effectively applied in inclusive classes for slow learners and general students regarding problem-solving skills.
Co-Authors Djamilah Bondan Widjajanti Marsigit Marsigit Pratama Wahyu Purnama Putranto, Sumbaji Sri Andayani