The goal of this study is to improve the academic performance of high school students. The study used a qualitative research method called practical/mutual collaborative/deliberate, which enables collaboration between researchers and teachers. The study attempts to answer the two main questions: what strategies can be used to best improve the twelfth-grade students’ selfesteem at Kelsey High School? And in what ways can students’ motivation predict the change in their negative feelings about themselves? Thirty-seven students in the twelfth grade at Kelsey High School participated in several training and technique-application sessions to improve their self-perception and, consequently, their academic performance. The study offers several solutions and implications for teachers on how to improve students’ academic performance.

self-esteem, performance, learning, high school, students.