Learning design of linear equation system two variables using MEAs approach in eight grade

This study aims to produce a learning trajectory that can assist students in understanding the material of linear equation system two variables using the Model Eliciting Activities (MEAs) approach. The research method used is design research with three stages, namely preliminary design, design experiments, and retrospective analysis. In the preliminary design stage, the researcher reviewed the literature and designed a Hypothetical Learning Trajectory (HLT) which contained the learning flow of the two-variable linear equation system with the MEAs approach. At the design experiment stage, the HLT that has been designed is tested on students to find out the strategies and thoughts of students in studying a linear equation system two variables through activities. The results of the trial were analyzed at the retrospective analysis stage to produce a Learning Trajectory (LT). The subjects in this study were students of eight grade Xaverius 7 Junior High School in Palembang as many as 20 students. Data collection techniques used interviews, pre- test, post-test, documentation, and field notes. The results of this study indicate that a series of learning activities can help students understand the concept of linear equation system two variable and can solve problems related to the material.