The aim of the study is to test the effect of the Peer Instruction Method on secondary school students’ success in science and technology course. In the study pre-experimental design was used. The students of one of the 6th grade classes from Erzurum Sabancı Secondary School were given a concept test as a pretest first and then as a posttest after application. Consisting of 27–item questions, the concept test in the application is a valid and reliable one which was first tested by Ionnides and Vasnidou (1978). According to SPSS-16 program, it was seen that Peer Instuction Method led to a significant increase in the level of learning the science concepts for the 6th grade students. Additionally, the researcher asked for the teacher’s opinions who joined classes as an observer during the application. By the help of teacher's views, qualitative data that support and explain quantitative data were obtained.
Active Learning, Peer Instruction, Science Education.