Development of an Ethno-RME-Based Electronic Student Worksheet (E-LKPD) on Geometric Transformation Using Yogyakarta Batik Motifs to Improve Mathematical Problem Solving Ability

Abstract

A low level of mathematical problem solving ability is partly due to teaching materials that aren't geared towards problem solving. Teaching materials used in learning generally still use conventional teaching materials so that they are less interesting and interactive. Furthermore, lecture-based learning approaches are frequently used, which makes students less engaged and active during the learning processTo boost mathematical problem-solving abilities, this project focuses on developing E-LKPD that are rooted in ethno-RME and utilize Yogyakarta batik as a theme. The main objective of this research and development effort is to produce E-LKPD that are both reliable and effective. While practicality is evaluated through teacher and student practicality assessments, validity is evaluated through validation by knowledgeable material and media validators. This study utilizes Research and Development (R&D) with the ADDIE model as its methodology, though only the development stage was implemented due to time limitations. The study's findings show that the created E-LKPD products meet reliable and useful standards. The high validation percentages from both material experts (75%, 'Valid') and media experts (92.4%, 'Very Valid') serve as evidence for this. In addition, the practicality test by teachers reached 90% (category "Very Practical"), and the overall percentage of practicality tests by students was 87.25% (category "Very Practical").