Learning Similarity Lawang Sewu using Context for Third Grade Lower Secondary School Students

Abstract

This study aims to produce a learning trajectory by using the context of Lawang Sewu in helping students to understand the concept of similarity. The approach used in this research was Realistic Mathematics Education, in Indonesian version is called by PMRI. Subject of the study is the third-grade students of SMP 37 Semarang, Central Java, Indonesia, involving 6 students who were chosen in heterogeneous capabilities. The methodology used is a design research consisting of three phases, namely the preliminary design, the design experiment, and the retrospective analysis. However, this study only shows the results in the design experiment phase, in particular on a pilot experiment. Data collection was done through several techniques, namely: video recordings, photograph, students work result, and students interview during learning. Student learning activities consist of four activities, namely observing the Lawang Sewu video, identifying two similar shapes, identifying the requirements of two similar shapes, and solving a contextual problem related to similarity. The results of this study indicate that through a series of activities that have been designed could help to stimulate students understanding of similarity concept by using Lawang Sewu context.

Hyothetical Learning Trajectory On Dilation Material Using Realistic Mathematics Education and Geogebra Media

“…Context has an important role in learning, one of which makes mathematics more interesting and improves teacher learning process activities (Hubulo et al, 2022). Some contexts that have been used in previous studies that have proven to be able to improve student learning outcomes include traditional games (Rahmasari et al, 2023), folklore, legends, community customs , puppet stories (Arbowo et al, 2018), and historical buildings (Fahrurozi et al, 2018;Susanti et al, 2023). Dwi Hardiyanto, Farida Nursyahidah, Irkham Ulil Albab A suitable context for dilation material can be found in the Tedhak Siten tradition.…”