出版社：The International Institute for Science, Technology and Education (IISTE)
摘要：The aim of this research is to improve students’ understanding in mathematical objects. This research is an action research with 31 eleventh grade students of SMA Parulian 1 Medan as the subject of research. The instruments of this research are the diagnostic and understanding essay test. The reliability of the diagnostic test is 0.77 (high); understanding test I is 0.54 (medium); and understanding test II is 0.43 (medium). The validity of each item in the diagnostic and understanding test are in valid criteria. The results shows that the sudents’ understanding in mathematical objects, those are fact, concept, operation and principle of each are 91%; 92.74%; 75.84% dan 80.65%, and it can be concluded that this reseach is successful. Keywords: 5E Learning Cycle Model, Virtual Manipulatives, Understanding toward Mathematical Objects
