First Grade Student’s Mathematical Representation in the Classroom Using Lesson Study and Open Approach
Keywords:
Mathematical Representation, Lesson Study, Open ApproachAbstract
This study aims to analyze mathematical representation of first grade student in the classroom using Lesson Study and Open Approach. The collected data was analyzed through the framework Flow of Lesson [6] to investigate the first grade students’ mathematical representation. Flow of Lesson [6] is a step of mathematics lesson in which begins with the students’ real world and connected to the students’ mathematical world. It consists of three elements which are: 1) Representation of real world, 2) Semi-concrete aids and 3) Representation of mathematical world. The results showed that students used the representation of real world: students used the problem situation with the picture given to realize and explain what happened through the problem situation then describe it through words that related to their real world in daily life in order to show that they can go deeply into the open-ended problem then tried to find the solution to solve it. In addition, students also used the semi-concrete aid in the form of pictures (material preparing by Lesson Study team) and diagram to be the tools for solving the problem and for explaining to everyone in the class how they get the answer and how they discompose number and do the operation. Through the materials and diagram, students can show their abilities of thinking alternatively and effectively in order to reach the answers. Moreover, student used the representation of mathematical world throughout mathematics sentence and other mathematics symbols to represent the problem situation that helped from representation of real world and semi-concrete aids.
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