The purpose of this study was to determine the effectiveness of peer tutoring on student achievement, student motivation, and student participation. Research shows that peer tutoring does improve student participation as well as student achievement, however, there have been mixed results on the improvement of student motivation. There were a total of 28 participants, 20 girls and 8 boys in the fifth grade math class. During the project, the students participated in three different stages: work in a large group, work with a teacher chosen peer tutor, and work with a peer tutor of their choice. The motivation was measured through observation notes and student survey, the achievement level was measured through workbook success, and student participation was measured through workbook completion and observation notes. Data showed that student achievement, participation and motivation improved when students had a peer tutor. Students were most successful when the teacher chose the peer tutors, but students were more motivated when they chose their own peer tutor. The findings suggest that peer tutoring is an effective strategy to use in the classroom.