Penggunaan Media Manipulatif untuk Meningkatkan Hasil Pembelajaran Matematika di Sekolah Dasar

. The research use of manipulative media to improve learning outcomes in elementary school mathematics. The purpose of this study was to describe ntuk improving student learning outcomes in learning manipulative rounding numbers to the media. The method used is descriptive method, classroom action research (CAR) with the nature of the collaboration between researchers with colleagues and students in grade IV, which lasted for two cycles. Results of the study: 1). the ability of teachers to plan learning with an average score of 2.6 in cycle 1, cycle 2 to 3.5 in both categories 2). The ability of teachers in the implementation of learning with an average score of 2.3 in cycle 1 and cycle 2 by 3.7 by categories. 3). Students who achieve a passing grade on cycle 1 of 8 persons (50.00%), and in cycle 2 to 13 persons (81.25%