Preliminary research of development learning design of system of two linear equations based on realistic mathematics education

Abstract

Students in junior high school learned system of two linear equations materials focusing on the procedural steps of problem-solving provided, they become difficult if given problems with higher levels or different problems. This is because the ability of students mathematical reasoning is relatively low. Based from observations and interviews with teachers, one way to overcome this problem is developing the learning design using Realistic Mathematics Education (RME). In this research, the instructional design developed is Local Instruction Theory (LIT), teacher book and student book. The purpose of this research is to develop the characteristics of learning design. The topic of the system of two linear equations based on RME in class VIII SMP is valid, practical and effective. This research will combine two types of research and research. Tjeerd Plomp and Gravemeijer & Cobb. Learning implementation of learning, teacher book and student book using design research Plomp. Then, for the development of a learning trajectory, designed by using design research Gravemeijer & Cobb. Validation is done by an expert or lecturer of Mathematics Education, Educational Technology, and Language. Practicality has seen from the observation learning implementation, practicality and interviews questionnaire with students and teachers. Effectiveness has seen from the results of student activities and the final test of learning. The data is analyzed descriptively.Introduction.