MMUN是Montessori Model United Nations的简称，其中文名称为“蒙特梭利模拟联合国青少年峰会”。该峰会创立于2006年，是联合国为9-16岁国际青少年提供的唯一模拟联合国示范项目。峰会每年举行一次，在峰会上，来自世界各地的青少年相聚在一起，作为世界各国的“外交官”，针对全球热点问题讨论解决方案。峰会包括演讲、辩论、撰写立场文件、提交决议案等环节，最终经投票通过的决议案将呈交给联合国秘书长, 并存于联合国总部。会议全程语言为英文。

MMUN活动主要服务于模拟联合国最年轻的代表。主要的目标是让孩子们参与真实的学习环境，教他们批判性思维，社会公正和协作，同时参与改变生活的体验。因为MMUN本身是一项促进社会责任感和行动的合作教育项目，所以不设置任何奖项。

MMUN活动要求模拟联合国的“大使”们以真实的方式进行准备和谈判，要求代表们必须始终为他们自己所代表的国家投票，并时刻牢记只有通过谈判的方式才能共同解决重要的世界问题。

MMUN峰会期间，模拟联合国的“大使”们的工作时间有限，因此大部分谈判都是以非正式和小组讨论的方式进行。通过合作和协商，这些“大使”们努力将尽可能多的成员国纳入其中。

学生代表肩负未来领袖的责任，他们的优秀提案将被联合国采纳，从而真正帮助世界上有需要的人。同时，MMUN模拟联合国国际青少年峰会期间，学生们还将结识全世界五大洲的优秀同龄人，开展未来领袖间对话，建立友谊。最后，学生还会获得MMUN证书并参与领袖人才甄选。

The Montessori Model United Nations program culminates classroom or after school study with a two day global education simulation experience at the United Nations that enables students in upper elementary, and middle schools to learn about the operations of the United Nations and its role as the world’s largest international peacekeeping and humanitarian organization. In addition, like the high school and university Model United Nations Programs, MMUN provides students from 9-15 years of age an opportunity to:

·Learn about cultures, governments and peoples of nations throughout the world.

·Use research skills, writing skills and written & oral communications skills.

·Develop critical thinking skills, problem solving skills and evaluative skills.

·Debate current global issues and world problems.

·Practice and use leadership skills in a real life global situation.

·Understand the need for peace and conflict resolution throughout the world while developing their own conflict resolution and debating skills.

Through the process of role-playing, each student becomes a delegate of a selected nation. They write, present and debate issues affecting their nation and peoples of the world. By assuming the character of a citizen of their selected country they fully develop an understanding of the needs of a people and the importance of accepting differences.