Innovations for dealing with large classes (defined as those with over 60 pupils) are offered in this guide for teachers and administrators. Based on a systems approach, this document describes the difficulties with which teachers of large classes must cope and lists solutions that can be introduced by teachers and administrators at various levels. Some examples of innovations with which various countries have experimented are described in the annexes. Some of these solutions include peer tutoring systems, group work organization, printed teaching aids, educational methods effective for developing countries, locally produced materials, educator training strategies, school construction, and tapping community resources. A conclusion is that large classes will continue to be the norm for developing countries; it is necessary to work to make them creative and innovative. (LMI)