摘要：This study was aimed to improve the student scientific reasoning skills of biology the implementation of Guided Inquiry Learning in the human respiratory system material. The study was class action research which consists of three cycles. Each cycle contains planning,implementing, observing,and reflecting. The subject of this research is the students in XI IPA 2 of SMA Negeri Colomadu academic year 2014/2015. The data colecting techniques of this research are using observation,interview,and documentation. The data validation of this research is using triangulation method. The data result of observation,interview,and documentation are analyzed by using qualitative analysis which is done in three components,they are:data reduction,data presentation,and drawing the conclusion or verification. The results show that students scientific reasoning skills is increased in Pre Cycle to Cycle III 37,22% on scientific reasoning skills of student. This research’s conclusion is the implementation of Guided Inquiry Learning can improve scientific reasoning skills in the human respiratory system material of the student in XI IPA 2 class at SMA Negeri Colomadu.
其他摘要：Penelitian ini bertujuan untuk meningkatkan kamampuan penalaran ilmiah melalui model pembelajaran inkuiri terbimbing pada materi sistem pernapasan manusia. Penelitian ini merupakan Penelitian Tindakan Kelas (PTK) yang dilaksanakan dalam 3 Siklus. Setiap S
其他关键词：kemampuan penalaran ilmiah;model pembelajaran inkuiri terbimbing;pernapasan manusia
