MATHEMATICS LEARNING INSTRUMENT DEVELOPMENT BASED ON RME ASSISTED BY LIVE WORKSHEET TO DEVELOP PROBLEM SOLVING SKILLS

Abstract

Learning mathematics experiences several problems, one of them is problems related to problem solving skills, the researchers applied the RME approach that presented a real-world context so that students could construct their own understanding with the help of live worksheets as an assisted media for mathematics learning. The existence of an approach that is applied using developing technology is expected to have trained students to solve problems properly and correctly. This study to develop learning tools that can develop mathematical problem solving skills with realistic mathematics education (RME) approach assisted by live worksheet application. This type is a Research and Development (R&D) with the ADDIE model (analysis, design, development, implementation and evaluation). This research was applied to 8th-A grade students at SMPN 1 Baureno Bojonegoro as many as 32 students. Data were collected using several techniques, field notes, validation, and tests. The results of data analysis showed that based on the indicators determined by researchers, the learning device was declared "valid" in terms of (1) the total average validity of the lesson plan of 3.93 which was included in the "valid" criteria, and (2) e-LKPD of 4.192 which was included in the "very valid" criteria. The learning device is expressed as "practical" at criterion "B" with an average total practicality score of 82.045 which means it can be used with minor revisions. The learning device was expressed "effective" to develop mathematical problem solving skills based on the average test score of all students of 85.46 with a percentage of classical completeness of more than 75%, which is 81.25%. This study recommends the use of RME assisted by live worksheets to develop problem solving skills, especially for junior high school students. 

Keywords: Live Worksheet; Problem Solving; RME Approach