Motivation, one of the leading problems in education, is an ongoing issue for teachers. Motivation is important because it highly contributes to achievement. Teachers have to be certain that their students are being motivated in order to develop a positive outcome. Boekaerts states that bad teaching kills motivation and that good teaching brings out the best in students of all ages. If you want to encourage your students to become their own teachers and develop independent learning skills, you need to know about the principles that guide motivated learnig. Motivation needs to be concerned about by every educator. It may be difficult for teachers to sustain motivation of students. Through positive reinforcement, teachers can sustain students interest.This book suggests some strategies to sustain students' classroom motivation.