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All Journal M A T H L I N E : Jurnal Matematika dan Pendidikan Matematika JME (Journal of Mathematics Education)
Putriani, Jesika Dwi
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Education Mathematics

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LEARNING DESIGN FOR LINEAR EQUATIONS IN TWO VARIABLES BASED ON THE PMRI APPROACH USING THE GOJEK CONTEXT FOR EIGHTH-GRADE STUDENTS Putriani, Jesika Dwi; Zulkardi, Zulkardi; Susanti, Ely; Meryansumayeka, Meryansumayeka
Mathline : Jurnal Matematika dan Pendidikan Matematika Vol. 10 No. 2 (2025): Mathline : Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas Wiralodra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/mathline.v10i2.830

Abstract

This study aims to develop a learning trajectory to stimulate students in solving problems related to the topic of systems of linear equations in two variables (SPLDV), packaged in the form of student activity sheets. This research employs a design research method of the validation study type, consisting of preparing for the experiment, the design experiment, and retrospective analysis. The research was conducted with 37 students from class VIII.1 at SMPN 9 Palembang. Data were collected through documentation, field notes, student activity sheets, and interviews. The collected data were analyzed through data reduction, descriptive presentation, and conclusion drawing. This study resulted in the following learning trajectory: (1) Observing contextual problems related to SPLDV using the GoJek context, specifically the additional bonus for GoCar partners, (2) Students presenting data, including what is known and what is being asked from the problem. (3) Students create possible scenarios for the distances traveled by GoCar partners on weekdays (Monday–Friday) and Saturdays, (4) Students solve the problem, predict alternative solutions, and draw conclusions. The learning trajectory utilizing the GoJek context effectively aids students in understanding and resolving issues related to SPLDV.
Development of Digital Worksheets Assisted by GeoGebra on Linear Function Material to Support Students Computational Thinking Skills Putriani, Jesika Dwi; Hapizah, Hapizah; Mulyono, Budi
JME (Journal of Mathematics Education) Vol 10, No 2 (2025): JME (Jul - Dec)
Publisher : Universitas Sembilanbelas November Kolaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31327/jme.v10i2.2552

Abstract

This study aims to develop a valid and practical digital worksheet in GeoGebra on linear functions, with a focus on the dangers of waste, to support students' computational thinking skills. This study uses a development studies design research method, consisting of three stages: preliminary research, development or prototyping phase, and assessment phase. The validation stage was conducted by three mathematics education lecturers and one mathematics teacher, with expert review, to assess content, construction, language, and technology. Meanwhile, practicality was evaluated by student responses during the small-group stage after using the digital worksheet in learning. The results showed that the digital worksheet using GeoGebra had an average validity of 93.81% (very valid) and practicality of 82.18% (practical). Thus, the developed digital worksheet using GeoGebra was declared valid and practical for use in mathematics learning and has the potential to improve students' computational thinking skills through solving contextual problems related to the dangers of waste.
Co-Authors Ely Susanti Hapizah Meryansumayeka Meryansumayeka Mulyono, Budi Zulkardi Zulkardi