Circle of angle (c.o.a) for higher geometry learning

Mathematics is one of the subject have been focus because the students abilities to have Higher Order Thinking Skills (HOTS) can be train through this subject. In the syllabus that be given by the ministry, metrics and geometry in one of the topics that need to fullfill by the students. To learn geometry does not like learn arithmetics because geometry knowledge can be apply with our daily life. Therefore, this study aims to innovate circle of angle (C.O.A) to assist Standard 4 students in geometry‘s teaching and learning and to help inability to cope and know the different geometric angles within the set time of goals/objective in the class. Besides, this study also could solve the lack of attractive and innovative ideas in the teaching of Geometric. In addition, it can be student centered learning to change Old teacher center way of teaching mathematic in geometric class for Standard 4 students