Validity of Mathematic Learning Teaching Administration on Realistic Mathematics Education Based Approach to Improve Problem Solving

Abstract

Abstract The purpose of this study is to produce a learning tools based on Realistic Mathematics Education that is valid, practical, and effective against the problem solving abilities of students in class VII. Learning Tools are developed Lesson Plan (LP) and Student Worksheets (SW). This research is a development research with Plomp model of the which consists of three stages items, namely preliminary research, development, and improvement. At the development stage, the learning tools design and evaluation is carried out through formative evaluations.