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Lisnani; Putri, Ratu Ilma Indra; Zulkardi; Somakim – Journal on Mathematics Education, 2023
This study aims to develop a valid, practical, and which has potential effect web-based realistic mathematics learning environment with the six cultural contexts of the island of Sumatera. The learning environment has the potential to positively impact primary school students. The study employed design research method, which encompassed the…
Descriptors: Mathematics Education, Educational Environment, Elementary School Students, 21st Century Skills
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Rusiyanti, Rini Herlina; Zulkardi; Putri, Ratu Ilma Indra; Somakim – Journal on Mathematics Education, 2022
Teachers' academic and professional competencies significantly improve the quality of their learning. An ongoing process is needed to support and develop their quality. This study developed a learning environment through the Realistic Mathematics Education (RME)-based Lesson Study for Learning Community (LSLC) for high school mathematics teachers.…
Descriptors: Mathematics Education, High School Teachers, Mathematics Teachers, Teacher Improvement
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Fauziah, Anna; Putri, Ratu Ilma Indra; Zulkardi; Somakim – Journal on Mathematics Education, 2020
Teachers' pedagogical ability contributes significantly to their process and learning performance. To improve it, a development process is needed as long as they are still having their process of education or they are still teacher students. This study aimed to develop a valid and practical PMRI learning environment through lesson study which had…
Descriptors: Preservice Teachers, Elementary School Teachers, Communities of Practice, Foreign Countries
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Muttaqin, Haniful; Putri, Ratu Ilma Indra; Somakim – Journal on Mathematics Education, 2017
This research was motivated by several studies which show that students have difficulties in understanding the material ratio, wherein one contributing factor is the lack of ability in proportional reasoning. The purpose of this study is to produce a trajectory of learning to help students develop abilities in comparison reasoning. Solution…
Descriptors: Mathematics Instruction, Mathematical Concepts, Grade 7, Graphs
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Saraswati, Sari; Putri, Ratu Ilma Indra; Somakim – Journal on Mathematics Education, 2016
This research aimed to describe how algebra tiles can support students' understanding of linear equations with one variable. This article is a part of a larger research on learning design of linear equations with one variable using algebra tiles combined with balancing method. Therefore, it will merely discuss one activity focused on how students…
Descriptors: Equations (Mathematics), Mathematics Instruction, Algebra, Mathematics