中学生中存在着一种由学生自发组织、自由结合的小群体，即中学生小群体，又称非正式群体，国外称“隐形组织”。这些小群体没有定员编制，其成员性格的爱好基本一致，各成员没有明确规定的权利、义务和分工，其活动目的主要是为了满足成员的某种需要。这种群体广泛地存在于中? There is a middle school students spontaneous by the students, a small group of free combination, that is, a small group of middle school students, also known as informal groups, known as “invisible organizations.” These small groups have no staffing establishment. Their members’ hobbies are basically the same. Each member does not have clearly defined rights, obligations and division of labor. Its purpose is mainly to meet the needs of members. This group exists in a wide range of?