The Implementation of Open-Ended Approach to Improve Mathematical Problem-Solving Skill of Fraction Concept in Elementary School

摘要

The research departs from the result of the observation conducted by researcher at State Elementary School 13 Serang that most students can not understand the calculation of fraction concept. It is showed by the result of mathematical problem-solving skill test of students which islow and under the standard of score. Moreover, teachers have not been able to use varied approaches and methods in learning the process. The research is intended to improve mathematical problem-solving skill math class V students of State Elementary School 13 Serang through the implementationof the open-ended approach. The research adopted classroom action research Kemmis and Mc. Taggart models consisting of planing, action, observation, and reflection. The subject comprised 48 students of class V. The instrument of this research is the test of mathematical problem-solving skilland observation of activities in the learning process. The result showed that the average score in the first cycle is 64,21 and the average score of the second cycle is 74,73. Thus, there was an increase from the first cycle to the second cycle. It can be concluded that the open-ended approachcan improve mathematical problem solving skill of students.