Mathematical Modelling Based Learning Design on Relation and Function for Junior High School Students

Abstract

This research is a design research type of validation studies, which aims to produce a learning trajectory of relation and function material in the form of 4 activities of student worksheets (LKPD). The research subjects were 32 students of Junior High School 19 Palembang class VIII 9, where the focus of the study was two high-ability students, two medium-ability students, and two low-ability students. The subjects were selected based on the students’ academic abilities and the recommendations of the teachers in mathematics. We carried the research out in three stages, namely: (1) the preliminary or preparation stage, which includes literature study and data collection; (2) experiments which are the stages of implementing the results of the learning trajectory or hypnotical learning trajectory (HLT); (3) retrospective analysis, which is the stage of analysing the learning outcome data on the previously made learning trajectory. The research was conducted online with a pre-scheduled, scheduled, and post-scheduled learning system. Pre-scheduled and post-scheduled learning uses google classroom and WhatsApp groups, while scheduled using the zoom application. The research data was collected via google classroom and analysed qualitatively. The results showed that the learning trajectory can improve the understanding and ability of students of Junior High School 19 Palembang class VIII 9 in solving problems of relation and function material.