This study aims to determine: (1) How the application of the Peer Tutoring learning method affects cognitive learning outcomes in Class X History Learning at SMAN 12 Pekanbaru. (2) Is there an influence of the use of the Peer Tutoring Learning Method in improving the cognitive learning outcomes of class X students at SMAN 12 Pekanbaru? (3) How big is the influence of the use of the Peer Tutorin…