The paper examines the theoretical foundation of intolerance and explores potential topics for a curriculum designed to overcome intolerance. Previous research has shown that a negative self-image and low self-esteem seem to foster intolerance. Likewise, individuals with low levels of self-awareness tend to be more willing to express intolerance while paying less attention to the impression their behaviour and communication has among others. Individuals with a negative self-image and low self-esteem often resist change and tend to look for information that confirms and reinforces their existing viewpoints while ignoring information that contradicts their viewpoints. The research of Kruger and Dunning (1999), though, suggests that instruction in metacognition can overcome these negative characteristics. Especially if metacognitive training is coupled with multicultural education, cultural diversity training, and foreign language instruction as other research has revealed.