This document discusses the challenges that global teachers face in multicultural classrooms and various teacher exchange programs that aim to promote cultural understanding. It notes that classrooms are becoming more diverse in terms of students' ethnic backgrounds, languages, socioeconomic statuses, and experiences. To help teachers address this diversity, it recommends that they gain awareness of differences, avoid stereotyping students, get to know each student, and infuse multicultural materials. It then outlines several international teacher exchange programs between countries and their goals of transforming lives through cultural exchange, providing opportunities for teachers to learn from other environments, and developing global competencies.