Abstrak
This research was motivated by lack of student learning responses in the classroom. There are several students who want to ask questions , respond and express ideas in the process of teaching science lessons. One effort to overcome this problem is to use the Constructivist Learning Approach in learning. The purpose of this study is to describe the improvement in student responses and student learning outcomes in science learning in the fourth grade of SDN 23 Ujung Gurun Padang by implementing a constructive learning approach . This study is a classroom action research (CAR) conducted in two cycles . The subjects in this study were students of class I V which numbered 21 people . The research data is obtained from learning responses and student learning outcomes. The results showed that an increase in student learning responses from cycle I to cycle II was 11.65%. Increasing student learning outcomes from cycle I to cycle II is equal to 10.25%. It can be concluded that the Constructivist Learning Approach can improve student learning responses and student learning outcomes. <br />