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Santri, Diah Dwi; Hartono, Yusuf; Somakim – Journal of Education and Learning (EduLearn), 2019
This study aims to produce a learning trajectory using the mathematical modeling in helping students to understand the concept of algebraic operations. Therefore, the design research was chosen to meet the research aims and to give in formulating and developing local instructional theory in learning algebraic operations. Learning trajectory…
Descriptors: Mathematical Models, Algebra, Mathematics Instruction, Video Technology
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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