The Improvement of Students’ Conceptual Understanding and Students’ Academic Language of Mathematics through the Implementation of SIOP Model

Abstract

This study was aimed at: (1) investigating the improvement of students' conceptual understanding of mathematics, (2) investigating the improvement of students' academic language of mathematics, and (3) investigating the response of students toward the implementation of SIOP Model. This research was a classroom action research which was accomplished in three cycles. Each cycle consisted of four steps namely planning, acting, observing and evaluating, and reflecting. The subjects of this research were the tenth-grade students in bilingual class namely X MIA 2 of SMA Negeri Bali Mandara on the second semester of academic year 2016/2017. Data of students' conceptual understanding and academic language of mathematics were collected by conceptual understanding of mathematics tests using essay test on the end of each cycle, while data of students' response toward the implementation of SIOP Model were obtained by questionnaire. Data that had been collected therefore were analyzed descriptively. The results show that students' conceptual understanding and academic language of mathematics improves on each cycle. Students' response toward the implementation of SIOP Model in learning mathematics is on the positive category. This study concludes that the implementation of SIOP Model could improve students' conceptual understanding and students' academic language of mathematics.